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DocumentCortical synchronization as a neural basis for visual perception2007

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-2006
Location: Arquivo PCA - Pastas 1 a 22 /2006
Title:
2006 Grants
Start date: 2007-01 - 2013-11
Dimension/support:
22 caixas de arquivo

Reference code: PT/FB/BL-2006-080
Location: Arquivo PCA - Pasta 19/2006
Title:
080 - Understanding the role of dendrites in cortical information processing
Duration: 2007-02 - 2010-02
Researcher(s):
Drazen Domijan, Mladenka Tkalcic, Mia Setic, Ana Prorokvic, Pavle Valerjev
Institution(s): Dep. of Psychology, Faculty of Arts and Sciences, University of Rijeka, Rijeka (Croatia)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
4 Book chapters
5 Articles
3 Conference papers
Language: eng
Author:
Domijan, D.
Secondary author(s):
Tkalcic, M., Šetic, M., Prorokvic, A., Valerjev, P.
Number of reproductions:
1
Keywords:
Psychophysiology / Brain structure and function / Cognitive processes / Attention / Memory / Perception / Body structure and function / Vision

Reference code: PT/FB/BL-2006-080.06
Location: Arquivo PCA - Pasta 19/2006
Title:
Cortical synchronization as a neural basis for visual perception
Publication year: 2007
Abstract/Results:
ABSTRACT:
Cortical synchronization has been suggested as a neural mechanism that is able to solve the feature binding problem. This idea has been intensively studied at neurophysiological, psychophysical and computational level. In this paper, arguments for and against the role of cortical synchronization in visual perception are critically examined. Initial neurophysiological findings of correlated neural activity in the primary visual cortex have been questioned by studies which reveal enhanced firing rate to the figure region compared to the background. Computational investigations reveal that synchronization has capacity limit. At the behavioural level, change blindness has been used as the evidence for capacity limit of visual perception. However, further examination of this issue showed that detailed visual representation exists but it is obscured by limitation of attention and visual working memory. Other behavioural phenomena, such as perceptual asynchrony, also point to the fact that there is dissociation between correlated neural activity and perception. Therefore, at present there is no sufficient evidence to support the conclusion that cortical synchronization plays a crucial role in visual perception.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Domijan, D.
Document type:
Article
Number of reproductions:
1
Reference:
Domijan, D. (2007). Cortical synchronization as a neural basis for visual perception. Review of Psychology, 14, 3-12.
Indexed document: No
Keywords: Change blindness / Cortex / Feature binding / Neural mechanisms / Vision

Cortical synchronization as a neural basis for visual perception

Cortical synchronization as a neural basis for visual perception

DocumentMapeamento funcional do córtex posterior através de Ressonância Magnética Funcional2012

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-2010-157
Location: Arquivo PCA - Pasta 14/2010
Title:
157 - Control of cognitive and emotional processing of faces by the frontal theta Rhythm
Duration: 2011-04 - 2014-10
Researcher(s):
Alberto João Rodrigues Leal, Ricardo Jorge de Pina Ramos Machado Lopes, Patrícia Arriaga Ferreira, Francisco Esteves
Institution(s): Centro de Investigação e Intervenção Social, ISCTE-IUL, Lisboa (Portugal)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress reports
Language: por
Author:
Leal, A.
Secondary author(s):
Lopes, R., Arriaga Ferreira, P., Esteves, F.
Number of reproductions:
1
Keywords:
Psychophysiology / Emotion / Cognitive processes / Brain structure and function

Reference code: PT/FB/BL-2010-157.02
Location: SEC PCA - 157/10
Title:
Mapeamento funcional do córtex posterior através de Ressonância Magnética Funcional
Publication year: 2012
URL:
http://www.spnc.pt/files/Publications/Sinapse_V12N1_Final.pdf
Accessibility: Document exists in file
Language:
por
Author:
Leal, A.
Secondary author(s):
Lopes, R., Secca, M.
Document type:
Abstract
Number of reproductions:
1
Reference:
Leal, A., Lopes, R., & Secca, M. (2012). Mapeamento funcional do córtex posterior através de Ressonância Magnética Funcional. Revista Sinapse, 12(1), 244.
Indexed document: Yes
Keywords: Functional magnetic resonance imaging (fMRI) / Cortex / Epilepsy

Mapeamento funcional do córtex posterior através de Ressonância Magnética Funcional

Mapeamento funcional do córtex posterior através de Ressonância Magnética Funcional

DocumentTopographical functional connectivity patterns exist in the congenitally, prelingually deaf2016

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-2012
Location: SEC PCA
Title:
2012 Grants
Start date: 2013-02

Reference code: PT/FB/BL-2012-112
Location: Arquivo PCA - Pasta 10/2012
Title:
112 - Retinotopic reorganization of the auditory cortex of congenitally deaf individuals due to neuroplascticity
Duration: 2013-05
Researcher(s):
Jorge Manuel Castelo Branco de Albuquerque Almeida, Bradford Zack Mahon, Dr. Yanchao Bi, Óscar Filipe Coelho Neves Gonçalves
Institution(s): Faculdade de Psicologia e Ciências da Educação, Universidade de Coimbra (Portugal)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Language: eng
Author:
Almeida, J.
Secondary author(s):
Mahon, B., Bi, Y., Gonçalves, O.
Number of reproductions:
1
Keywords:
Psychophysiology / Biopsychological problems / Diseases/Injuries / Body structure and function / Audition / Brain structure and function

Reference code: PT/FB/BL-2012-112.07
Location: Arquivo PCA - Pasta 10/2012
Title:
Topographical functional connectivity patterns exist in the congenitally, prelingually deaf
Publication year: 2016
URL:
http://www.nature.com/articles/srep29375
Abstract/Results: ABSTRACT:
Congenital deafness causes large changes in the auditory cortex structure and function, such that without early childhood cochlear-implant, profoundly deaf children do not develop intact, high-level, auditory functions. But how is auditory cortex organization affected by congenital, prelingual, and long standing deafness? Does the large-scale topographical organization of the auditory cortex develop in people deaf from birth? And is it retained despite cross-modal plasticity? We identified, using fMRI, topographic tonotopy-based functional connectivity (FC) structure in humans in the core auditory cortex, its extending tonotopic gradients in the belt and even beyond that. These regions show similar FC structure in the congenitally deaf throughout the auditory cortex, including in the language areas. The topographic FC pattern can be identified reliably in the vast majority of the deaf, at the single subject level, despite the absence of hearing-aid use and poor oral language skills. These findings suggest that large-scale tonotopic-based FC does not require sensory experience to develop, and is retained despite life-long auditory deprivation and cross-modal plasticity. Furthermore, as the topographic FC is retained to varying degrees among the deaf subjects, it may serve to predict the potential for auditory rehabilitation using cochlear implants in individual subjects.
Accessibility: Document exists in file
Language:
eng
Author:
Striem-Amitm E.
Secondary author(s):
Almeida, J., Belledonne, M., Chen, Q., Yuxing, Y., Han, Z. , Caramazza, A., Bi, Y.
Document type:
Article
Number of reproductions:
1
Percentiles:
6|2022-03-19
Reference:
Striem-Amit, E., Almeida, J., Belledonne, M., Chen, Q., Yuxing, Y., Han, Z., Caramazza, A., & Bi, Y. (2016). Topographical functional connectivity patterns exist in the congenitally, prelingually deaf. Scientific Reports, 6: 29375. doi: 10.1038/srep29375
2-year Impact Factor: 4.259|2016
Times cited: 17|2022-05-23
Indexed document: Yes
Quartile: Q1
Keywords: Cortex / Language / Neural patterning / Perception / Sensory processing

Topographical functional connectivity patterns exist in the congenitally, prelingually deaf

Topographical functional connectivity patterns exist in the congenitally, prelingually deaf

DocumentResting-state functional connectivity and cortical thickness characterization of a patient with Charles Bonnet syndrome2019

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: NDE
Location: Arquivo PCA - Pasta 1/Outros Apoios
Title:
Characterization of “Near-Death Experiences” through the comparison of experiencers and non-experiencers’ particularities: inter-individual differences in cognitive characteristics and susceptibility to false memories
Duration: 2016-03 - 2019-03
Researcher(s):
Steven Laureys, Charlotte Martial, Vanessa Charland-Verville, Héléna Cassol
Institution(s): Coma Science Group, University of Liège (Belgium)
Contents: Application
Research Funding Agreement
Progress report
Final report
Articles
Language: eng
Author:
Laureys, S.
Number of reproductions:
3
Keywords:
Parapsychology and Psychophysiology / Near-death experience / Functional magnetic resonance imaging (fMRI)

Reference code: NDE-44
Location: Arquivo PCA - Pasta 1/Outros Apoios
Title:
Resting-state functional connectivity and cortical thickness characterization of a patient with Charles Bonnet syndrome
Publication year: 2019
URL:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6638931/
Abstract/Results: ABSTRACT:
Charles Bonnet syndrome (CBS) is a rare condition characterized by visual impairment associated with complex visual hallucinations in elderly people. Although studies suggested that visual hallucinations may be caused by brain damage in the visual system in CBS patients, alterations in specific brain regions in the occipital cortex have not been studied. Functional connectivity during resting-state functional magnetic resonance imaging (rs-fMRI; without hallucinations) in CBS patients, has never been explored. We aimed to investigate brain structural and functional changes in a patient with CBS, as compared with late blind (LB) and normally sighted subjects. We employed voxel-based morphometry and cortical thickness analyses to investigate alterations in grey matter characteristics, and rs-fMRI to study changes in functional brain connectivity. Decreased grey matter volume was observed in the middle occipital gyrus and in the cuneus in the CBS patient, and in the middle occipital gyrus and in the lingual gyrus within LB subjects, compared to their respective control groups. Reductions in cortical thickness in associative and multimodal cortices were observed in the CBS patient when comparing with LB subjects. The precuneus exhibited increased functional connectivity with the secondary visual cortex in the CBS patient compared to the controls. In contrast, LB patients showed decreased functional connectivity compared to sighted controls between the DMN and the temporo-occipital fusiform gyrus, a region known to support hallucinations. Our findings suggest a reorganization of the functional connectivity between regions involved in self-awareness and in visual and salience processing in CBS that may contribute to the appearance of visual hallucinations.
Accessibility: Document exists in file
Language:
eng
Author:
Martial, C.
Secondary author(s):
Larroque, S. K., Cavaliere, C., Wannez, S., Annen, J., Kupers, R., Laureys, S., Di Perri, C., Ginsberg, S. D.
Document type:
Article
Number of reproductions:
3
Percentiles:
6|2022-03-19
Reference:
Martial, C., Larroque, S. K., Cavaliere, C., Wannez, S., Annen, J., Kupers, R., Laureys, S., Di Perri, C., & Ginsberg, S. D. (2019). Resting-state functional connectivity and cortical thickness characterization of a patient with Charles Bonnet syndrome. PLoS ONE, 14(7), e0219656. doi: 10.1371/journal.pone.0219656
2-year Impact Factor: 2.740|2019
Times cited: 4|2022-05-17
Indexed document: Yes
Quartile: Q2
Keywords: Visual hallucinations / Charles Bonnet Syndrome / Cortex / fMRI / Vision

Resting-state functional connectivity and cortical thickness characterization of a patient with Charles Bonnet syndrome

Resting-state functional connectivity and cortical thickness characterization of a patient with Charles Bonnet syndrome

DocumentIncreasing and decreasing interregional brain coupling increases and decreases oscillatory activity in the human brain2021

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-2016-044
Location: BF-GMS
Title:
044 - Inducing and measuring plasticity in response control mechanisms in the human brain
Duration: 2017-10 - 2021-09
Researcher(s):
Alejandra Sel de Felipe, Matthew Rushworth
Institution(s): Department of Experimental Psychology, University of Oxford (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Author: Sel, A.
Secondary author(s):
Rushworth, M.
Number of reproductions:
1
Keywords:
Cognitive control / Response inhibition / Cortical plasticity / Neurostimulation / Psychophysiology

Reference code: PT/FB/BL-2016-044.04
Location: BF-GMS
Title:
Increasing and decreasing interregional brain coupling increases and decreases oscillatory activity in the human brain
Publication year: 2021
URL:
https://www.pnas.org/content/118/37/e2100652118
Abstract/Results: ABSTRACT:
The origins of oscillatory activity in the brain are currently debated, but common to many hypotheses is the notion that they reflect interactions between brain areas. Here, we examine this possibility by manipulating the strength of coupling between two human brain regions, ventral premotor cortex (PMv) and primary motor cortex (M1), and examine the impact on oscillatory activity in the motor system measurable in the electroencephalogram. We either increased or decreased the strength of coupling while holding the impact on each component area in the pathway constant. This was achieved by stimulating PMv and M1 with paired pulses of transcranial magnetic stimulation using two different patterns, only one of which increases the influence exerted by PMv over M1. While the stimulation protocols differed in their temporal patterning, they were comprised of identical numbers of pulses to M1 and PMv. We measured the impact on activity in alpha, beta, and theta bands during a motor task in which participants either made a preprepared action (Go) or withheld it (No-Go). Augmenting cortical connectivity between PMv and M1, by evoking synchronous pre- and postsynaptic activity in the PMv–M1 pathway, enhanced oscillatory beta and theta rhythms in Go and No-Go trials, respectively. Little change was observed in the alpha rhythm. By contrast, diminishing the influence of PMv over M1 decreased oscillatory beta and theta rhythms in Go and No-Go trials, respectively. This suggests that corticocortical communication frequencies in the PMv–M1 pathway can be manipulated following Hebbian spike-timing–dependent plasticity.
Accessibility: Document exists in file
Language:
eng
Author:
Sel, A.
Secondary author(s):
Verhagen, L., Angerer, K., David, R., Klein-Flügge, M. C., Rushworth, M.
Document type:
Article
Number of reproductions:
1
Percentiles:
7|2022-03-19
Reference:
Sel, A., Verhagen, L., Angerer, K., David, R., Klein-Flügge, M. C., & Rushworth, M. (2021). Increasing and decreasing interregional brain coupling increases and decreases oscillatory activity in the human brain. Proceedings of the National Academy of Sciences of the United States of America, 118(37), e2100652118. doi: 10.1073/pnas.2100652118
2-year Impact Factor: 11.205|2020
Impact factor notes: Impact factor not available yet for 2021
Times cited: 0|2022-05-25
Indexed document: Yes
Quartile: Q1
Keywords: Action control / Transcranial magnetic stimulation / Ventral premotor cortex / Primary motor / Cortex / Oscillations

Increasing and decreasing interregional brain coupling increases and decreases oscillatory activity in the human brain

Increasing and decreasing interregional brain coupling increases and decreases oscillatory activity in the human brain