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File226 - Brain decoding of spontaneous memory processes2011-102016-01

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools
DocumentDecoding semi-constrained brain activity from fMRI using support vector machines and gaussian processes2012

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.02
Location: Arquivo PCA - Pasta 23/2010
Title:
Decoding semi-constrained brain activity from fMRI using support vector machines and gaussian processes
Publication year: 2012
URL:
http://www.plosone.org/article/fetchObject.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0035860&representation=PDF
Abstract/Results: ABSTRACT:
Predicting a particular cognitive state from a specific pattern of fMRI voxel values is still a methodological challenge. Decoding brain activity is usually performed in highly controlled experimental paradigms characterized by a series of distinct states induced by a temporally constrained experimental design. In more realistic conditions, the number, sequence and duration of mental states are unpredictably generated by the individual, resulting in complex and imbalanced fMRI data sets. This study tests the classification of brain activity, acquired on 16 volunteers using fMRI, during mental imagery, a condition in which the number and duration of mental events were not externally imposed but self-generated. To deal with these issues, two classification techniques were considered (Support Vector Machines, SVM, and Gaussian Processes, GP), as well as different feature extraction methods (General Linear Model, GLM and SVM). These techniques were combined in order to identify the procedures leading to the highest accuracy measures. Our results showed that 12 data sets out of 16 could be significantly modeled by either SVM or GP. Model accuracies tended to be related to the degree of imbalance between classes and to task performance of the volunteers. We also conclude that the GP technique tends to be more robust than SVM to model unbalanced data sets.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Schrouff, J.
Secondary author(s):
Kussé, C., Wehenkel, L., Maquet, P., Phillips, C.
Document type:
Article
Number of reproductions:
1
Reference:
Schrouff, J., Kussé, C., Wehenkel, L., Maquet, P., & Phillips, C. (2012). Decoding semi-constrained brain activity from fMRI using support vector machines and gaussian processes. PLoS ONE, 7(4): e35860. https://doi.org/10.1371/journal.pone.0035860
2-year Impact Factor: 3.730|2012
Times cited: 23|2024-02-01
Indexed document: Yes
Quartile: Q1
Keywords: Brain activity / Mental imagery / Spontaneous activity / Functional magnetic resonance imaging (fMRI)

Decoding semi-constrained brain activity from fMRI using support vector machines and gaussian processes

Decoding semi-constrained brain activity from fMRI using support vector machines and gaussian processes
DocumentDecoding spontaneous brain activity from fMRI using Gaussian Processes: tracking brain reactivation2012

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.03
Location: Arquivo PCA - Pasta 23/2010
Title:
Decoding spontaneous brain activity from fMRI using Gaussian Processes: tracking brain reactivation
Publication year: 2012
URL:
http://ieeexplore.ieee.org/xpl/abstractKeywords.jsp?arnumber=6295928
Abstract/Results: ABSTRACT:
While Multi-Variate Pattern Analysis techniques based on machine learning have now been regularly applied
to neuroimaging data, decoding brain activity is usually performed in highly controlled experimental paradigms. In more realistic conditions, the number, sequence and duration of mental states are unpredictably generated by the individual, resulting in complex and imbalanced fMRI data sets. Moreover, in the case of spontaneous brain activity, the mental states can not be linked to any external or internal stimulation, which makes it a highly difficult condition to decode. This study tests the classification of brain activity, acquired on 14 volunteers using fMRI, during mental imagery, a condition in which the number and duration of mental events were not externally imposed but self-generated. Application of the obtained model on rest sessions allowed classifying spontaneous brain activity linked to the task which, overall, correlated with their behavioural performance to the task.
Accessibility: Document does not exist in file
Language:
eng
Author:
Schrouff, J.
Secondary author(s):
Kussé, C., Wehenkel, L., Maquet, P., Phillips, C.
Document type:
Conference paper
Number of reproductions:
1
Reference:
Schrouff, J., Kussé, C., Wehenkel, L., Maquet, P., & Phillips, C. (2012). Decoding spontaneous brain activity from fMRI using Gaussian Processes: tracking brain reactivation. In Proceedings 2012 Second International Workshop on Pattern Recognition in NeuroImaging (pp. 61-64). IEEE Computer Society Conference Publishing Services. https://doi.org/10.1109/PRNI.2012.19
2-year Impact Factor: N/A
Times cited: N/A
Indexed document: Yes
Quartile: N/A
Keywords: Brain decoding / Functional magnetic resonance imaging (fMRI) / Spontaneous activity / Semi-constrained activity

Decoding spontaneous brain activity from fMRI using Gaussian Processes: tracking brain reactivation

Decoding spontaneous brain activity from fMRI using Gaussian Processes: tracking brain reactivation
DocumentFunctional interactions between memory processes and spontaneous brain activity. Behavioral, EEG and fMRI studies2014

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.05
Location: Arquivo PCA - Pasta 23/2010
Title:
Functional interactions between memory processes and spontaneous brain activity. Behavioral, EEG and fMRI studies
Publication year: 2014
URL:
http://orbi.ulg.ac.be/handle/2268/170404
Abstract/Results: Episodic memories pertain to specific events for which both content and context can be consciously recalled and verbalized. Between encoding and retrieval, episodic memories are thought to be maintained within hippocampal and neocortical circuits, then to be gradually consolidated into robust memories which can eventually be accurately and comprehensively retrieved in the long term.
However, the mechanisms by which a recent episodic memory is initially maintained in the brain are not yet fully understood.
The main aim of this thesis is to examine whether learning an engaging task modifies spontaneous brain activity during subsequent resting state wakefulness and sleep onset, and whether such replay of brain activity has an effect on offline memory processing. We examined healthy human volunteers behaviorally and with non-invasive neuroimaging techniques in two different studies.
In the first study, we examined the emergence of task-related hypnagogic hallucinations during a daytime nap with EEG. In the experimental group (n=16), participants played Tetris in the morning for two hours during three consecutive days, while in a first control group (n=13, controlling the effect of experience), participants did not play any game, and in a second control group (n=14, controlling the effect of anticipation), participants played Tetris after the nap. During afternoon naps, participants were repetitively awakened during sleep stage 1 and were asked to report their mental content. Reports content was scored by three judges (inter-rater reliability 85%). In the experimental group, 48 out of 485 (10%) sleep-onset reports were Tetris-related. These reports mostly consisted of images and sounds with very little emotional content. They exactly reproduced Tetris elements or mixed them with other mnemonic components. By contrast, in the first control group only 1 report out of 107 was scored as Tetrisrelated (1%), and in the second control group only 3 reports out of 112 (3%) (between groups comparison; p=0.006). Hypnagogic hallucinations were more consistently induced by experience than by anticipation (p=0.039) and they were predominantly observed during the transition of wakefulness to sleep. The observed attributes of experience-related hypnagogic hallucinations are consistent with the particular organization of regional brain activity at sleep onset, characterized by high activity in sensory cortices and in the default mode network.
In the second study, we tested if brain activity generated during learning is spontaneously repeated during subsequent resting wakefulness. Healthy participants (n=11) were scanned in a randomized within-subject cross-over design composed of two conditions in which fMRI rest sessions flanked an active fMRI session. We applied machine learning based multivariate pattern analysis on these fMRI time series to calculate the percentages of taskrelated scans before and after a memory task (encoding a two dimensional trajectory of face, building and animal pictures) and before and after a control task (an auditory oddball). Activity patterns elicited by visual stimuli were spontaneously expressed in the visual ventral stream before any cognitive challenge. We found that 1.11% more scans were task-related after learning than before, and that the larger the difference between the proportions of spontaneous brain activity linked to a task before and after this task, the better the memorization of task features by the subject, suggesting that reactivations during post-task rest are linked to the memorization of the task. On the other hand, 0.26% less scans were related to the memory task after a control task than before, suggesting that the control task had a repressive effect on the scans related to the memory task. Memory encoding modulated the temporal organization of the spontaneous activity in episodes of longer duration (4 to 6 seconds). Our results show that human memories are maintained during resting wakefulness by temporally organized repetitions of regional brain activity. However, because our other analyses (dynamic causal modeling, cross-correlations and explained variance, and spatial networks based on independent component analysis) could not confirm these findings, we suggest that fMRI might not be the most appropriate methodology to further characterize memory consolidation directly.
Our results add to the growing body of evidence suggesting that offline processing of explicit memories occurs during wakefulness. They extend our understanding of human spontaneous brain activity and its relationship to offline memory processing, although more research is warranted to further explore the details of the memory consolidation process. Interesting perspectives would be to pursue this work during sleep or with other neuroimaging methods such as high density EEG or simultaneous fMRI and EEG.
Accessibility: Document exists in file
Language:
eng
Author:
Kussé, C.
Document type:
Doctoral thesis
Number of reproductions:
1
Reference:
Kussé, C. (2014). Functional interactions between memory processes and spontaneous brain activity. Behavioral, EEG and fMRI studies (Doctoral thesis, Université de Ličge, Belgium). Retrieved from http://hdl.handle.net/2268/170404
Indexed document: No
Keywords: Memory / Spontaneous brain activity

Functional interactions between memory processes and spontaneous brain activity. Behavioral, EEG and fMRI studies

Functional interactions between memory processes and spontaneous brain activity. Behavioral, EEG and fMRI studies
DocumentLocalizing and comparing weight maps generated from linear kernel machine learning models2013

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.06
Location: Arquivo PCA - Pasta 23/2010
Title:
Localizing and comparing weight maps generated from linear kernel machine learning models
Publication year: 2013
URL:
http://orbi.ulg.ac.be/handle/2268/157714
Abstract/Results: ABSTRACT:
Recently, machine learning models have been applied to neuroimaging data, allowing to make predictions about a variable of interest based on the pattern of activation or anatomy over a set of voxels. These pattern recognition based methods present undeniable assets over classical (univariate) techniques, by providing predictions for unseen data, as well as the weights of each voxel in the model. However, the obtained weight map cannot be thresholded to perform regionally specific inference, leading to a difficult localization of the variable of interest. In this work, we provide local averages of the weights according to regions defined by anatomical or functional atlases (e.g. Brodmann atlas). These averages can then be ranked, thereby providing a sorted list of regions that can be (to a certain extent) compared with univariate results. Furthermore, we defined a “ranking distance”, allowing for the quantitative comparison between localized patterns. These concepts are illustrated with two datasets.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Schrouff, J.
Secondary author(s):
Cremers, J., Garraux, G., Baldassare, L., Mourăo-Miranda, C., Phillips, C.
Document type:
Conference paper
Number of reproductions:
1
Reference:
Schrouff, J., Cremers, J., Garraux, G., Baldassare, L., Mourăo-Miranda, C., & Phillips, C. (2013). Localizing and comparing weight maps generated from linear kernel machine learning models. In Proceedings 2013 International Workshop on Pattern Recognition in NeuroImaging (pp. 124-127). IEEE Computer Society Conference Publishing Services. https://doi.org/10.1109/PRNI.2013.40
Times cited: 27|2024-02-06
Indexed document: Yes
Keywords: Machine learning / Neuroimaging / Model interpretation

Localizing and comparing weight maps generated from linear kernel machine learning models

Localizing and comparing weight maps generated from linear kernel machine learning models
DocumentDecoding memory processing from electro-corticography in human posteromedial cortex2014

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.07
Location: Arquivo PCA - Pasta 23/2010
Title:
Decoding memory processing from electro-corticography in human posteromedial cortex
Publication year: 2014
URL:
http://orbi.ulg.ac.be/handle/2268/183140
Abstract/Results: ABSTRACT:
Recently machine learning models have been applied to neuroimaging data, which allow predictions about a variable of interest based on the pattern of activation or anatomy over a set of voxels. These pattern recognition based methods present clear benefits over classical (univariate) techniques, by providing predictions for unseen data, as well as the weights of each feature in the model. Machine learning methods have been applied to a range of data, from MRI to EEG. However, these multivariate techniques have scarcely been applied to electrocorticography (ECoG) data to investigate cognitive neuroscience questions. In this work, we used previously published ECoG data from 8 subjects to show that machine learning techniques can complement univariate techniques and be more sensitive to certain effects.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Schrouff, J.
Secondary author(s):
Foster, V., Rangarajan, C., Phillips, C., Mourăo-Miranda, C., Parvizi, J.
Document type:
Conference paper
Number of reproductions:
1
Reference:
Schrouff, J., Foster, V., Rangarajan, C., Phillips, C., Mourăo-Miranda, C., & Parvizi, J. (2014). Decoding memory processing from electro-corticography in human posteromedial cortex. In Proceedings 2014 International Workshop on Pattern Recognition in NeuroImaging (pp. 1-4). IEEE Computer Society Conference Publishing Services. https://doi.org/10.1109/PRNI.2014.6858543
Times cited: 0|2024-02-06
Indexed document: Yes
Keywords: ECoG / Multivariate pattern analysis / Memory decoding
DocumentFinal report - Brain decoding of spontaneous memory processes2015

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.01
Location: Arquivo PCA - Pasta 23/2010
Title:
Final report - Brain decoding of spontaneous memory processes
Publication year: 2015
URL:
https://www.bial.com/imagem/Grant22610.pdf
Abstract/Results: ABSTRACT:
Classically, the brain’s operations are considered as essentially reflexive and mainly driven by external stimuli. In this perspective, brain function is predominantly geared to interpreting incoming stimuli and programming motor output. Another view posits that the bulk of brain’s activity is intrinsic, spontaneous (i.e., it emerges in the absence of any identified external stimulus), and essentially aims at maintaining, processing information and adapt future behaviour by predicting the environment.
The objective of this project is to develop a research strategy for examining spontaneous memory offline processing in healthy human volunteers in order to characterize in a direct manner the neuronal correlates of a recently formed memory trace. We first used functional magnetic resonance imaging (fMRI) then moved on to electrophysiological data, acquired in original experimental protocol. We show that, to some extent, one can track the spontaneous replay of activity linked to learned material, i.e. mnesic traces, in rest fMRI data. With ECoG data, it is also possible to decode the quality (‘math’ versus ‘non-math’) of a subject’s mentation. The new methodological tools developed rely on advanced machine learning techniques, to model brain activity. In particular the sparse multiple kernel learning approach is more sensitive than univariate methods to decode a variable of interest and provides an easy way to locate the information of interest, i.e. find the relevant signal features.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Phillips, C.
Secondary author(s):
Maquet, P.
Document type:
Final report
Number of reproductions:
1
Indexed document:
No
Keywords: Brain spontaneous activity / Memory / Functional magnetic resonance imaging (fMRI) / Brain reading
DocumentDecoding directed brain activity in fMRI using support vector machines and gaussian processes2011

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.08
Location: Arquivo PCA - Pasta 23/2010
Title:
Decoding directed brain activity in fMRI using support vector machines and gaussian processes
Publication year: 2011
URL:
http://hdl.handle.net/2268/138409
Abstract/Results: ABSTRACT:
Predicting a particular cognitive state from a specific pattern of fMRI voxel values is still a methodological challenge. Decoding brain activity is usually performed in highly controlled experimental paradigms characterized by a series of distinct states induced by a temporally constrained experimental design. In more realistic conditions, the number, sequence and duration of mental states are unpredictably generated by the individual, resulting in complex and imbalanced fMRI data sets. This study tests the classification of brain activity, acquired on 16 volunteers using fMRI, during mental imagery, a condition in which the number and duration of mental events were not externally imposed but self-generated. To deal with these issues, two classification techniques were considered (Support Vector Machines, SVM, and Gaussian Processes, GP), as well as different feature extraction methods (General Linear Model, GLM and SVM). These techniques were combined in order to identify the procedures leading to the highest accuracy measures. Our results showed that 12 data sets out of 16 could be significantly modeled by either SVM or GP. Model accuracies tended to be related to the degree of imbalance between classes and to task performance of the volunteers. We also conclude that the GP technique tends to be more robust than SVM to model unbalanced data sets.
Accessibility: Document does not exist in file
Language:
eng
Author:
Schrouff, J.
Secondary author(s):
Kussé, C., Wehenkel, L., Maquet, P., Phillips, C.
Document type:
Online abstract
Number of reproductions:
1
Reference:
Schrouff, J., Kussé, C., Wehenkel, L., Maquet, P., & Phillips, C. (2011, June). Decoding directed brain activity in fMRI using support vector machines and gaussian processes. Poster presented at the Organization of Human Brain Mapping, Québec, Canada. Abstract retrieved at http://hdl.handle.net/2268/138409
Indexed document: No
Keywords: Functional magnetic resonance imaging (fMRI) / Machine learning / SVM

Decoding directed brain activity in fMRI using support vector machines and gaussian processes

Decoding directed brain activity in fMRI using support vector machines and gaussian processes
DocumentCan we interpret linear kernel machine learning models using anatomically labelled regions?2014

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.09
Location: Arquivo PCA - Pasta 23/2010
Title:
Can we interpret linear kernel machine learning models using anatomically labelled regions?
Publication year: 2014
URL:
http://hdl.handle.net/2268/170848
Accessibility: Document exists in file
Language:
eng
Author:
Schrouff, J.
Secondary author(s):
Monteiro, J., Joăo Rosa, M. , Portugal, L., Phillips, C., Mourăo-Miranda, C.
Document type:
Online abstract
Number of reproductions:
1
Reference:
Schrouff, J., Monteiro, J., Joăo Rosa, M., Portugal, L., Phillips, C., & Mourăo-Miranda, C. (2014, June). Can we interpret linear kernel machine learning models using anatomically labelled regions? Poster presented at the 20th Annual Meeting of the Organization for Human Brain Mapping, Hamburg, Germany.
Indexed document: No
Keywords: Neuroimaging / Machine learning / Multi-kernel

Can we interpret linear kernel machine learning models using anatomically labelled regions?

Can we interpret linear kernel machine learning models using anatomically labelled regions?
DocumentAutomatic artifacts and arousals detection in whole-night sleep EEG recordings2016

Reference code: PT/FB/BL-2010-226.10
Location: Arquivo PCA - Pasta 23/2010
Title:
Automatic artifacts and arousals detection in whole-night sleep EEG recordings
Publication year: 2016
URL:
https://www.sciencedirect.com/science/article/abs/pii/S0165027015003994
Abstract/Results: ABSTRACT:
BCKGROUND: In sleep electroencephalographic (EEG) signals, artifacts and arousals marking are usually part of the processing. This visual inspection by a human expert has two main drawbacks: it is very time consuming add subjective.
NEW METHOD: To detect artifacts and arousals in a reliable, systematic and reproducible automatic way, we developed an automatic detection based on time and frequency analysis with adapted thresholds derived from data themselves.
RESULTS: The automatic detection performance is assessed using 5 statistic parameters, on 60 whole night sleep recordings coming from 35 healthy volunteers (male and female) aged between 19 and 26. The proposed approach proves its robustness against inter- and intra-, subjects and raters' scorings, variability. The agreement with human raters is rated overall from substantial to excellent and provides a significantly more reliable method than between human raters.
COMPARISON: Existing methods detect only specific artifacts or only arousals, and/or these methods are validated on short episodes of sleep recordings, making it difficult to compare with our whole night results. Conclusion: The method works on a whole night recording and is fully automatic, reproducible, and reliable. Furthermore the implementation of the method will be made available online as open source code.
Accessibility: Document does not exist in file
Language:
eng
Author:
Coppieters 't Wallant, D.
Secondary author(s):
Muto, V., Gaggioni, G., Jaspar, M., Chellappa, S. L., Meyer, C., Vandewalle, G., Maquet, P., Phillips, C.
Document type:
Article
Number of reproductions:
1
Percentiles:
6
Reference:
Coppieters 't Wallant, D., Muto, V., Gaggioni, G., Jaspar, M., Chellappa, S. L., Meyer, C., Vandewalle, G., Maquet, P., & Phillips, C. (2016). Automatic artifacts and arousals detection in whole-night sleep EEG recordings. Journal of Neuroscience Methods, 258, 124-133. https://doi.org/10.1016/j.jneumeth.2015.11.005
2-year Impact Factor: 2.554|2016
Times cited: 26|2024-02-07
Indexed document: Yes
Quartile: Q2
Keywords: Artifact / Arousal / Sleep / Electroencephalography / Automatic / Adapted threshold / Raw data
DocumentLocal modulation of human brain responses by circadian rhythmicity and sleep debt2016

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.11
Location: Arquivo PCA - Pasta 23/2010
Title:
Local modulation of human brain responses by circadian rhythmicity and sleep debt
Publication year: 2016
URL:
https://www.sciencemag.org/cgi/pmidlookup?view=long&pmid=27516598
Abstract/Results: ABSTRACT:
Human performance is modulated by circadian rhythmicity and homeostatic sleep pressure. Whether and how this interaction is represented at the regional brain level has not been established. We quantified changes in brain responses to a sustained-attention task during 13 functional magnetic resonance imaging sessions scheduled across the circadian cycle, during 42 hours of wakefulness and after recovery sleep, in 33 healthy participants. Cortical responses showed significant circadian rhythmicity, the phase of which varied across brain regions. Cortical responses also significantly decreased with accrued sleep debt. Subcortical areas exhibited primarily a circadian modulation that closely followed the melatonin profile. These findings expand our understanding of the mechanisms involved in maintaining cognition during the day and its deterioration during sleep deprivation and circadian misalignment.
Accessibility: Document does not exist in file
Language:
eng
Author:
Muto, V.
Secondary author(s):
Jaspar, M., Meyer, C., Kussé, C., Chellappa, S. L., Degueldre, C., Balteau, E., Shaffii-Le Bourdiec, A., Luxen, A., Middleton, B., Archer, S. N., Phillips, C., Collette, F., Vandewalle, G., Dijk, D. J., Maquet, P.
Document type:
Article
Number of reproductions:
1
Percentiles:
4
Reference:
Muto, V., Jaspar, M., Meyer, C., Kussé, C., Chellappa, S. L., Degueldre, C., ... Maquet, P. (2016). Local modulation of human brain responses by circadian rhythmicity and sleep debt. Science, 353(6300), 687-690. https://doi.org/10.1126/science.aad2993
2-year Impact Factor: 37.205|2016
Times cited: 119|2024-02-07
Indexed document: Yes
Quartile: Q1
DocumentSeasonality in human cognitive brain responses2016

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.12
Location: Arquivo PCA - Pasta 23/2010
Title:
Seasonality in human cognitive brain responses
Publication year: 2016
URL:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4801294/
Abstract/Results: ABSTRACT:
Daily variations in the environment have shaped life on Earth, with circadian cycles identified in most living organisms. Likewise, seasons correspond to annual environmental fluctuations to which organisms have adapted. However, little is known about seasonal variations in human brain physiology. We investigated annual rhythms of brain activity in a cross-sectional study of healthy young participants. They were maintained in an environment free of seasonal cues for 4.5 d, after which brain responses were assessed using functional magnetic resonance imaging (fMRI) while they performed two different cognitive tasks. Brain responses to both tasks varied significantly across seasons, but the phase of these annual rhythms was strikingly different, speaking for a complex impact of season on human brain function. For the sustained attention task, the maximum and minimum responses were located around summer and winter solstices, respectively, whereas for the working memory task, maximum and minimum responses were observed around autumn and spring equinoxes. These findings reveal previously unappreciated process-specific seasonality in human cognitive brain function that could contribute to intra-individual cognitive changes at specific times of year and changes in affective control in vulnerable populations.
Accessibility: Document exists in file
Language:
eng
Author:
Meyer, C.
Secondary author(s):
Muto, V., Jaspar, M., Kussé, C., Lambot, E., Chellappa, S. L., Degueldre, C., Balteau, E., Luxen, A., Middleton, B., Archer, S. N., Collette, F., Dijk, D. J., Phillips, C., Maquet, P., Vandewalle, G.
Document type:
Article
Number of reproductions:
1
Percentiles:
4
Reference:
Meyer, C., Muto, V., Jaspar, M., Kussé, C., Lambot, E., Chellappa, S. L., …, Vandewalle, G. (2016). Seasonality in human cognitive brain responses. Proceedings of the National Academy of Sciences of the United States of America, 113(11), 3066–3071. https://doi.org/10.1073/pnas.1518129113
2-year Impact Factor: 9.661|2016
Times cited: 74|2024-02-07
Indexed document: Yes
Quartile: Q1
Keywords: Season / Cognition / fMRI / Annual / Attention

Seasonality in human cognitive brain responses

Seasonality in human cognitive brain responses
DocumentSleep spindles as an electrographic element: Description and automatic detection methods2016

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2010
Location: Arquivo PCA - Pastas 1 a 23
Title:
2010 Grants
Start date: 2011-01

Reference code: PT/FB/BL-2010-226
Location: Arquivo PCA - Pasta 23/2010
Title:
226 - Brain decoding of spontaneous memory processes
Duration: 2011-10 - 2016-01
Researcher(s):
Pierre Maquet, Christophe Phillips, Jessica Schrouff, Caroline Kussé
Institution(s): Cyclotron Research Centre, University of Ličge (Belgium)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Articles
Language: eng
Author:
Maquet, P.
Secondary author(s):
Phillips, C., Schrouffs, J., Kussé, C.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Memory / Brain structure and function / Assessment tools

Reference code: PT/FB/BL-2010-226.13
Location: Arquivo PCA - Pasta 23/2010
Title:
Sleep spindles as an electrographic element: Description and automatic detection methods
Publication year: 2016
URL:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4958487/
Abstract/Results: ABSTRACT:
Sleep spindle is a peculiar oscillatory brain pattern which has been associated with a number of sleep (isolation from exteroceptive stimuli, memory consolidation) and individual characteristics (intellectual quotient). Oddly enough, the definition of a spindle is both incomplete and restrictive. In consequence, there is no consensus about how to detect spindles. Visual scoring is cumbersome and user dependent. To analyze spindle activity in a more robust way, automatic sleep spindle detection methods are essential. Various algorithms were developed, depending on individual research interest, which hampers direct comparisons and meta-analyses. In this review, sleep spindle is first defined physically and topographically. From this general description, we tentatively extract the main characteristics to be detected and analyzed. A nonexhaustive list of automatic spindle detection methods is provided along with a description of their main processing principles. Finally, we propose a technique to assess the detection methods in a robust and comparable way.
Accessibility: Document exists in file
Language:
eng
Author:
Coppieters 't Wallant, D.
Secondary author(s):
Maquet, P., Phillips, C.
Document type:
Article
Number of reproductions:
1
Percentiles:
6
Reference:
Coppieters 't Wallant, D., Maquet, P., & Phillips, C. (2016). Sleep spindles as an electrographic element: Description and automatic detection methods. Neural plasticity, 2016, 6783812. https://doi.org/10.1155/2016/6783812
2-year Impact Factor: 3.054|2016
Times cited: 27|2024-02-07
Indexed document: Yes
Quartile: Q2

Sleep spindles as an electrographic element: Description and automatic detection methods

Sleep spindles as an electrographic element: Description and automatic detection methods