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DocumentIndependent component analysis reveals atypical electroencephalographic activity during visual perception in individuals with autism2009

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-2002
Location: Arquivo PCA - Pastas 1 a 21/2002
Title:
2002 Grants
Start date: 2003-01 - 2009-11
Dimension/support:
21 caixas de arquivo

Reference code: PT/FB/BL-2002-096
Location: Arquivo PCA - Pasta 6/2002
Title:
096 - Face processing in 3-day-olds: an electrophysiological approach
Duration: 2003-01 - 2005-02
Researcher(s):
Olivier Pascalis, de Haan Michelle, Saachi Reza
Institution(s): Department of Psychology, The University of Sheffield (UK)
Contents: Contents:
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Article
Language: eng
Author:
Pascalis, O.
Secondary author(s):
Haan, M., Saatchi, R.
Number of reproductions:
1
Keywords:
Psychophysiology / Developmental psychology / Brain structure and function

Reference code: PT/FB/BL-2002-096.03
Location: Arquivo PCA - Pasta 6/2002
Title:
Independent component analysis reveals atypical electroencephalographic activity during visual perception in individuals with autism
Publication year: 2009
URL:
http://www.sciencedirect.com/science/article/pii/S000632230800886X
Contents: http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=294&SID=Z1T1li1SW9lnlKPlMpq&page=1&doc=1
Abstract/Results: ABSTRACT:
BACKGROUND:
Individuals with autistic spectrum disorder (ASD) experience atypical visual perception, yet the etiology of this remains unknown. The aim of this study was to investigate the neural correlates of visual perception in individuals with and without ASD by carrying out a detailed analysis of the dynamic brain processes elicited by perception of a simple visual stimulus.
METHODS:
We investigated perception in 20 individuals with ASD and 20 control subjects with electroencephalography (EEG). Visual evoked potentials elicited by Gabor patches of varying spatial frequency and stimulus-induced changes in a- and ?-frequency bands of independent components were compared in those with and without ASD.
RESULTS:
By decomposing the EEG data into independent components, we identified several processes that contributed to the average event related potential recorded at the scalp. Differences between the ASD and control groups were found only in some of these processes. Specifically, in those components that were in or near the striate or extrastriate cortex, stimulus spatial frequency exerted a smaller effect on induced increases in a- and ?-band power, and time to peak a-band power was reduced, in the participants with ASD. Induced a-band power of components that were in or near the cingulate gyrus was increased in the participants with ASD, and the components that were in or near the parietal cortex did not differ between the two groups.
CONCLUSION:
Atypical processing is evident in individuals with ASD during perception of simple visual stimuli. The implications of these data for existing theories of atypical perception in ASD are discussed.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Milne, E.
Secondary author(s):
Scope, A., Pascalis, O., Buckley, D., Makeig, S.
Document type:
Article
Number of reproductions:
1
Reference:
Milne, E., Scope, A., Pascalis, O., Buckley, D., & Makeig, S. (2009). Independent Component Analysis Reveals Atypical Electroencephalographic Activity During Visual Perception in Individuals with Autism. Biological Psychiatry, 65(1), 22-30. https://doi.org/10.1016/j.biopsych.2008.07.017
2-year Impact Factor: 8.926|2009
Times cited: 105|2025-02-07
Indexed document: Yes
Quartile: Q1
Keywords: Alpha power / Autism / Cingulate Gyrus / Gamma power / Perception / Spatial frequency / Visual cortex

Novo ficheiro

Novo ficheiro
DocumentIndependent component analysis reveals atypical EEG activity during visual perception in individuals with autism2009

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-2004
Location: Arquivo PCA - Pastas 1 a 25/2004
Title:
2004 Grants
Start date: 2005-01 - 2012-09
Dimension/support:
25 caixas de arquivo

Reference code: PT/FB/BL-2004-047
Location: Arquivo PCA - Pasta 3/2004
Title:
047 - A combined psychophysiological and electrophysiological approach to investigate low-level visual perception in autism
Duration: 2005-06 - 2006-10
Researcher(s):
Olivier Pascalis, Elizabeth Milne, David Buckley, Laurence Vigon
Institution(s): Department of Psychology, The University of Sheffield (UK)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress reports
Final report
Poster
1 Article
Journal Cahiers de Psychologie Cognitive/ Current Psychology of Cognition
Language: eng
Author:
Pascalis, O.
Secondary author(s):
Milne, E., Buckley, D., Vigon, L.
Number of reproductions:
1
Keywords:
Psychophysiology / Body structure and function / Vision / Biopsychological problems / Childhood and adolescent disorders / Autism spectrum disorder (ASD) / Cognitive processes / Perception

Reference code: PT/FB/BL-2004-047.02
Location: Arquivo PCA - Pasta 3/2004
Title:
Independent component analysis reveals atypical EEG activity during visual perception in individuals with autism
Publication year: 2009
URL:
http://www.biologicalpsychiatryjournal.com/article/S0006-3223(08)00886-X/abstract
Abstract/Results: ABSTRACT:
BACKGROUND:
Individuals with autistic spectrum disorder (ASD) experience atypical visual perception, yet the etiology of this remains unknown. The aim of this study was to investigate the neural correlates of visual perception in individuals with and without ASD by carrying out a detailed analysis of the dynamic brain processes elicited by perception of a simple visual stimulus.
METHODS:
We investigated perception in 20 individuals with ASD and 20 control subjects with electroencephalograph(EEG). Visual evoked potentials elicited by Gabor patches of varying spatial frequency and stimulus-induced changes in a- and ?-frequency bands of independent components were compared in those with and without ASD.
RESULTS:
By decomposing the EEG data into independent components, we identified several processes that contributed to the average event related potential recorded at the scalp. Differences between the ASD and control groups were found only in some of these processes. Specifically, in those components that were in or near the striate or extrastriate cortex, stimulus spatial frequency exerted a smaller effect on induced increases in a- and ?-band power, and time to peak a-band power was reduced, in the participants with ASD. Induced a-band power of components that were in or near the cingulate gyrus was increased in the participants with ASD, and the components that were in or near the parietal cortex did not differ between the two groups.
CONCLUSIONS:
Atypical processing is evident in individuals with ASD during perception of simple visual stimuli. The implications of these data for existing theories of atypical perception in ASD are discussed.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Milne, E.
Secondary author(s):
Scope, A., Pascalis, O., Buckley, D., Makeig, S.
Document type:
Article
Number of reproductions:
1
Reference:
Milne, E., Scope, A., Pascalis, O., Buckley, D., & Makeig, S. (2009). Independent component analysis reveals atypical EEG activity during visual perception in individuals with autism. Biological Psychiatry, 65(1), 22-30. https://doi.org/10.1016/j.biopsych.2008.07.017
2-year Impact Factor: 8.926|2009
Times cited: 105|2025-02-07
Indexed document: Yes
Quartile: Q1
Keywords: Alpha power / Autism / Cingulate gyrus / Gamma power / Perception / Spatial frequency / Visual cortex

Independent component analysis reveals atypical EEG activity during visual perception in individuals with autism

Independent component analysis reveals atypical EEG activity during visual perception in individuals with autism
DocumentPredicting response originality through brain activity: An analysis of changes in EEG alpha power during the generation of alternative ideas2019

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-2016
Location: BF-GMS
Title:
2016 Grants
Start date: 2017-01

Reference code: PT/FB/BL-2016-298
Location: BF-GMS
Title:
298 - Empowering feedback connections in temporo-occipital network to boost visual perception of emotions
Duration: 2017-09 - 2019-10
Researcher(s):
Sara Borgomaneri, Marco Zanon, Alessio Avenanti, Caterina Bertini
Institution(s): Center for studies and research in Cognitive Neuroscience, Department of Psychology, University of Bologna, Cesena (Italy)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final Report
Articles
Author: Borgomaneri, S.
Secondary author(s):
Zanon, M., Avenanti, A., Bertini, C.
Number of reproductions:
1
Keywords:
Emotion perception / Transcranial magnetic stimulation (TMS) / Cortical plasticity / Feedback connections / Psychophysiology

Reference code: PT/FB/BL-2016-298.12
Location: BF-GMS
Title:
Predicting response originality through brain activity: An analysis of changes in EEG alpha power during the generation of alternative ideas
Publication year: 2019
URL:
https://www.sciencedirect.com/science/article/pii/S1053811919309760
Abstract/Results: ABSTRACT:
Growing neurophysiological evidence points to a role of alpha oscillations in divergent thinking (DT). In particular, studies have shown a consistent EEG alpha synchronization during performance on the Alternative Uses Task (AUT), a well-established DT task. However, there is a need for investigating the brain dynamics underlying the production of a sequence of multiple, alternative ideas at the AUT and their relationship with idea originality. In twenty young adults, we investigated changes in alpha power during performance on a structured version of the AUT, requiring to ideate four alternative uses for conventional objects in distinct and sequentially balanced time periods. Data analysis followed a three-step approach, including behaviour aspects, physiology aspects, and their mutual relationship. At the behavioural level, we observed a typical serial order effect during DT production, with an increase of originality associated with an increase in ideational time and a decrease in response percentage over the four responses. This pattern was paralleled by a shift from alpha desynchronization to alpha synchronization across production of the four alternative ideas. Remarkably, alpha power changes were able to explain response originality, with a differential role of alpha power over different sensor sites. In particular, alpha synchronization over frontal, central, and temporal sites was able to predict the generation of original ideas in the first phases of the DT process, whereas alpha synchronization over centro-parietal sites persistently predicted response originality during the entire DT production. Moreover, a bilateral hemispheric effect in frontal sites and a left-lateralized effect in central, temporal, and parietal sensor sites emerged as predictors of the increase in response originality. These findings highlight the temporal dynamics of DT production across the generation of alternative ideas and support a partially distinct functional role of specific cortical areas during DT.
Accessibility: Document exists in file
Language:
eng
Author:
Agnoli, S.
Secondary author(s):
Zanon, M., Mastria, S., Avenanti, A., Corazza, G. E.
Document type:
Article
Number of reproductions:
1
Reference:
Agnoli, S., Zanon, M., Mastria, S., Avenanti, A., & Corazza, G. E. (2019). Predicting response originality through brain activity: An analysis of changes in EEG alpha power during the generation of alternative ideas. NeuroImage, 207: 116385. https://doi.org/10.1016/j.neuroimage.2019.116385
2-year Impact Factor: 5.902|2019
Times cited: 53|2025-02-13
Indexed document: Yes
Quartile: Q1
Keywords: EEG / Alpha power / Originality / Idea generation / Divergent-thinking / Temporal dynamics / Creativity

Predicting response originality through brain activity: An analysis of changes in EEG alpha power during the generation of alternative ideas

Predicting response originality through brain activity: An analysis of changes in EEG alpha power during the generation of alternative ideas
DocumentPosterior brain lesions selectively alter alpha oscillatory activity and predict visual performance in hemianopic patients2019

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-2018
Location: BF-GMS
Title:
2018 Grants
Start date: 2019-01

Reference code: PT/FB/BL-2018-204
Location: BF-GMS
Title:
204 - Boosting WM capacity by strengthening the oscillatory functional fronto-parietal pathway
Duration: 2019-03 - 2023-04
Researcher(s):
Vincenzo Romei
Institution(s): Centre for studies and research in Cognitive Neuroscience - CsrNC, Department of Psychology, University of Bologna (Italy)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Articles
Language: eng
Author:
Romei, V.
Secondary author(s):
Poch, C.
Number of reproductions:
1
Keywords:
Brain oscillations / Working memory / Functional connectivity / Neurostimulation / Psychophysiology

Reference code: PT/FB/BL-2018-204.05
Location: BF-GMS
Title:
Posterior brain lesions selectively alter alpha oscillatory activity and predict visual performance in hemianopic patients
Publication year: 2019
URL:
https://www.sciencedirect.com/science/article/pii/S0010945219303296
Abstract/Results: ABSTRACT:
Alpha oscillatory frequency and amplitude have been linked to visual processing and to the excitability of the visual cortex at rest. Therefore, posterior brain lesions, which damage the neural circuits of the visual system might induce alterations in the alpha oscillatory activity. To investigate this hypothesis, EEG activity was recorded during eyes-closed resting state in patients with hemianopia with posterior brain lesions, patients without hemianopia with anterior brain lesions and age-matched healthy controls. Patients with posterior lesions revealed a selective slowdown of individual alpha frequency in both the intact and the lesioned hemisphere and a reduction of alpha amplitude in the lesioned hemisphere, resulting in an interhemispheric imbalanced oscillatory alpha activity, while no significant alterations in the alpha range were found in patients with anterior lesions. This suggests a crucial role of posterior cortices in coordinating alpha oscillations in the visual system. Moreover, right posterior lesions had a more severe reduction of individual alpha frequency and altering of the interhemispheric distribution of the alpha amplitude, in line with the notion of the prominence of the right posterior cortices in balancing the interhemispheric functioning. Crucially, the duration of the in individual alpha frequency and the interhemispheric imbalance in alpha amplitude were directly linked to visuo-spatial performance across all participants and to impaired visual detection abilities in hemianopics, therefore supporting a functional role of alpha oscillations in visual processing and suggesting that activity in this frequency range at rest represents a neurophysiological marker reliably reflecting the integrity and the functionality of the visual system in humans.
Accessibility: Document does not in file
Language:
eng
Author:
Pietrelli, M.
Secondary author(s):
Zanon, M., Làdavas, E., Grasso, P. A., Romei, V., Bertini, C.
Document type:
Article
Number of reproductions:
1
Reference:
Pietrelli, M., Zanon, M., Làdavas, E., Grasso, P. A., Romei, V., & Bertini, C. (2019). Posterior brain lesions selectively alter alpha oscillatory activity and predict visual performance in hemianopic patients. Cortex, 121, 347-361. https://doi.org/10.1016/j.cortex.2019.09.008
2-year Impact Factor: 4.009|2019
Times cited: 17|2025-02-13
Indexed document: Yes
Quartile: Q1
Keywords: Individual alpha frequency / Alpha power / Hemianopia / Visual processing / Interhemispheric imbalance
DocumentHow does closing one’s ‘dream’ eyes affect alpha power and visual content in lucid REM sleep?2024

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-2020
Location: BF-GMS
Title:
2020 Grants
Start date: 2021-01

Reference code: PT/FB/BL-2020-391
Location: BF-GMS
Title:
391 - Illuminating the dreamer's perceptual experiences
Duration: 2022-02
Researcher(s):
Delphine Oudiette, Ken Paller, Susan Florczak, Karen Konkoly, Saba Al-youssef
Institution(s): Institut du Cerveau, Paris (France); Cognitive Neuroscience Lab, Northwestern University, Evanston (USA)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Articles
Language: eng
Notes:
Ongoing project
Author: Paller, K.
Secondary author(s):
Florczak, S., Konkoly, K.
Number of reproductions:
1
Keywords:
Sleep / Communicating with dreamers / Lucid dreams / Changing dream content / Psychophysiology

Reference code: PT/FB/BL-2020-391.05
Location: BF-GMS
Title:
How does closing one’s ‘dream’ eyes affect alpha power and visual content in lucid REM sleep?
Publication year: 2024
URL:
https://doi.org/10.1016/j.sleep.2023.11.136
Abstract/Results: ABSTRACT:
Introduction: When asleep, we experience strong visual imagery (a.k.a. dreams) in the absence of external stimuli and although our physical eyes are closed. During wake, closing one's eyes is robustly accompanied by the appearance of EEG alpha oscillations. We aim to test whether this fundamental property of the waking visual system is maintained during REM sleep and whether it is associated with dream visual content.
To do so, we took advantage of the unique peculiarities of lucid dreamers, who are aware of dreaming during REM sleep, can perform a predefined task while dreaming and even signal it via muscular codes, allowing to timestamp the EEG segment corresponding to a dream of interest.
Materials and Methods: We recruited 4 lucid dreamers with narcolepsy, based on their ability to easily reach lucid REM sleep in a laboratory setting. Each participant had five 40-min naps monitored by polysomnography. We instructed participants to: i) successively close and open their eyes in their dreams and sniff twice for ‘close’ and once for ‘open’ (measured by a nasal cannula); ii) report whether they had a visual content or not in both conditions by smiling (‘yes’, zygomatic EMG) or frowning (‘no’, corrugator EMG). We woke participants up when they transitioned from REM sleep to NREM sleep stage 2 and immediately collected a dream report.
We used spectral power analysis in the 5 s window after a response code (sniff or facial EMG) to determine whether occipital alpha power during (lucid) REM sleep varies when the dreamer’s eyes are open or closed and in function of the presence or absence of visual content.
Results: Lucid dreamers with narcolepsy reached REM sleep in 21/26 naps and were lucid in 8 of these naps. In total, they were able to perform a closed eyes signal 29 times and an open eyes signal 19 times.Surprisingly, eyes’ closure during dreams was not always accompanied with a loss of visual content (6/16 cases without visual content vs. 10/16 cases with visual content; no visual code for the remaining 13 closed eyes signals). Conversely, participants always reported visual content when their eyes were open (8/8; no visual code for the remaining 11 eyes closed signal). All isolated closed/open signals without information on the visual content were excluded from the spectral power analysis.
In our preliminary results, we found no main effect of eyes condition (closed vs. open), of the visual content condition (no visual vs. visual content), or their interaction on the occipital alpha band power.
Conclusions: Closing our eyes in dreams does not seem to prevent the occurrence of visual content or to reliably increase occipital alpha power as it is the case during wakefulness. However, our results have to be confirmed with a larger sample size.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Al-Youssef, S.
Secondary author(s):
Konkoly, K., Arnulf, I., Paller, K., Oudiette, D.
Document type:
Conference abstract
Number of reproductions:
1
Reference:
Al-Youssef, S., Konkoly, K., Arnulf, I., Paller, K., & Oudiette, D. (2024). How does closing one’s ‘dream’ eyes affect alpha power and visual content in lucid REM sleep? Sleep Medicine, 115(Supplement 1), S36. https://doi.org/10.1016/j.sleep.2023.11.136
Indexed document: No
Keywords: Lucid REM sleep / Alpha power / EEG / Visual content