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File100 - Zooming in on the true neural mechanisms of phenomenal consciousness2021-042024-02

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-2020-100
Location: BF-GMS
Title:
100 - Zooming in on the true neural mechanisms of phenomenal consciousness
Duration: 2021-04 - 2024-02
Researcher(s):
Simon van Gaal, Andres Canales-Johnson, Robin Ince, Srivas Chennu
Institution(s): Amsterdam, Brain and Cognition - ABC, University of Amsterdam (The Netherlands); Cambridge University (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Articles
Language: eng
Author:
van Gaal, S.
Secondary author(s):
Canales-Johnson, A., Ince, R., Chennu, S.
Number of reproductions:
1
Keywords:
Phenomenology of consciousness / Neurodynamics of consciousness / Contents of consciousness / Integrated information theory of consciousness / Psychophysiology
DocumentFeedback information transfer in the human brain reflects bistable perception in the absence of report2023

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-2020-100
Location: BF-GMS
Title:
100 - Zooming in on the true neural mechanisms of phenomenal consciousness
Duration: 2021-04 - 2024-02
Researcher(s):
Simon van Gaal, Andres Canales-Johnson, Robin Ince, Srivas Chennu
Institution(s): Amsterdam, Brain and Cognition - ABC, University of Amsterdam (The Netherlands); Cambridge University (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Articles
Language: eng
Author:
van Gaal, S.
Secondary author(s):
Canales-Johnson, A., Ince, R., Chennu, S.
Number of reproductions:
1
Keywords:
Phenomenology of consciousness / Neurodynamics of consciousness / Contents of consciousness / Integrated information theory of consciousness / Psychophysiology

Reference code: PT/FB/BL-2020-100.02
Location: BF-GMS
Title:
Feedback information transfer in the human brain reflects bistable perception in the absence of report
Publication year: 2023
URL:
https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3002120
Abstract/Results: ABSTRACT:
In the search for the neural basis of conscious experience, perception and the cognitive processes associated with reporting perception are typically confounded as neural activity is recorded while participants explicitly report what they experience. Here, we present a novel way to disentangle perception from report using eye movement analysis techniques based on convolutional neural networks and neurodynamical analyses based on information theory. We use a bistable visual stimulus that instantiates two well-known properties of conscious perception: integration and differentiation. At any given moment, observers either perceive the stimulus as one integrated unitary object or as two differentiated objects that are clearly distinct from each other. Using electroencephalography, we show that measures of integration and differentiation based on information theory closely follow participants’ perceptual experience of those contents when switches were reported. We observed increased information integration between anterior to posterior electrodes (front to back) prior to a switch to the integrated percept, and higher information differentiation of anterior signals leading up to reporting the differentiated percept. Crucially, information integration was closely linked to perception and even observed in a no-report condition when perceptual transitions were inferred from eye movements alone. In contrast, the link between neural differentiation and perception was observed solely in the active report condition. Our results, therefore, suggest that perception and the processes associated with report require distinct amounts of anterior–posterior network communication and anterior information differentiation. While front-to-back directed information is associated with changes in the content of perception when viewing bistable visual stimuli, regardless of report, frontal information differentiation was absent in the no-report condition and therefore is not directly linked to perception per se.
Accessibility: Document exists in file
Language:
eng
Author:
Canales-Johnson, A.
Secondary author(s):
Beerendonk, L., Chennu, S., Davidson, M. J., Ince, R. A. A., van Gaal, S.
Document type:
Article
Number of reproductions:
1
Percentiles:
7
Reference:
Canales-Johnson, A., Beerendonk, L., Chennu, S., Davidson, M. J., Ince, R. A. A., & van Gaal, S. (2023). Feedback information transfer in the human brain reflects bistable perception in the absence of report. PLoS Biology, 21(5), e3002120. https://doi.org/10.1371/journal.pbio.3002120
2-year Impact Factor: 9.8|2022
Impact factor notes: Impact factor not available yet for 2023
Times cited: 0|2024-02-16
Indexed document: Yes
Quartile: Q1
Keywords: Perception / Eye movement / Integration and differentiation

Feedback information transfer in the human brain reflects bistable perception in the absence of report

Feedback information transfer in the human brain reflects bistable perception in the absence of report
DocumentPrinciples of large-scale neural interactions2023

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-2020-100
Location: BF-GMS
Title:
100 - Zooming in on the true neural mechanisms of phenomenal consciousness
Duration: 2021-04 - 2024-02
Researcher(s):
Simon van Gaal, Andres Canales-Johnson, Robin Ince, Srivas Chennu
Institution(s): Amsterdam, Brain and Cognition - ABC, University of Amsterdam (The Netherlands); Cambridge University (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Articles
Language: eng
Author:
van Gaal, S.
Secondary author(s):
Canales-Johnson, A., Ince, R., Chennu, S.
Number of reproductions:
1
Keywords:
Phenomenology of consciousness / Neurodynamics of consciousness / Contents of consciousness / Integrated information theory of consciousness / Psychophysiology

Reference code: PT/FB/BL-2020-100.03
Location: BF-GMS
Title:
Principles of large-scale neural interactions
Publication year: 2023
URL:
https://www.cell.com/neuron/fulltext/S0896-6273(23)00211-8?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0896627323002118%3Fshowall%3Dtrue
Abstract/Results: ABSTRACT:
What mechanisms underlie flexible inter-areal communication in the cortex? We consider four mechanisms for temporal coordination and their contributions to communication: (1) Oscillatory synchronization (communication-through-coherence); (2) communication-through-resonance; (3) non-linear integration; and (4) linear signal transmission (coherence-through-communication). We discuss major challenges for communication-through-coherence based on layer- and cell-type-specific analyses of spike phase-locking, heterogeneity of dynamics across networks and states, and computational models for selective communication. We argue that resonance and non-linear integration are viable alternative mechanisms that facilitate computation and selective communication in recurrent networks. Finally, we consider communication in relation to cortical hierarchy and critically examine the hypothesis that feedforward and feedback communication use fast (gamma) and slow (alpha/beta) frequencies, respectively. Instead, we propose that feedforward propagation of prediction errors relies on the non-linear amplification of aperiodic transients, whereas gamma and beta rhythms represent rhythmic equilibrium states that facilitate sustained and efficient information encoding and amplification of short-range feedback via resonance.
Accessibility: Document exists in file
Language:
eng
Author:
Vinck, M.
Secondary author(s):
Uran, C., Spyropoulos, G., Onorato, I., Broggini, A. C., Schneider, M., Canales-Johnson, A.
Document type:
Article
Number of reproductions:
1
Percentiles:
3
Reference:
Vinck, M., Uran, C., Spyropoulos, G., Onorato, I., Broggini, A. C., Schneider, M., & Canales-Johnson, A. (2023). Principles of large-scale neural interactions. Neuron, 111(7), 987–1002. https://doi.org/10.1016/j.neuron.2023.03.015
2-year Impact Factor: 16.200|2022
Impact factor notes: Impact factor not available yet for 2023
Times cited: 8|2024-02-16
Indexed document: Yes
Quartile: Q1
Keywords: Cerebral cortex / Communication / Connectivity

Principles of large-scale neural interactions

Principles of large-scale neural interactions
DocumentFinal report - Zooming in on the true neural mechanisms of phenomenal consciousness2024

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-2020-100
Location: BF-GMS
Title:
100 - Zooming in on the true neural mechanisms of phenomenal consciousness
Duration: 2021-04 - 2024-02
Researcher(s):
Simon van Gaal, Andres Canales-Johnson, Robin Ince, Srivas Chennu
Institution(s): Amsterdam, Brain and Cognition - ABC, University of Amsterdam (The Netherlands); Cambridge University (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Articles
Language: eng
Author:
van Gaal, S.
Secondary author(s):
Canales-Johnson, A., Ince, R., Chennu, S.
Number of reproductions:
1
Keywords:
Phenomenology of consciousness / Neurodynamics of consciousness / Contents of consciousness / Integrated information theory of consciousness / Psychophysiology

Reference code: PT/FB/BL-2020-100.01
Location: BF-GMS
Title:
Final report - Zooming in on the true neural mechanisms of phenomenal consciousness
Publication year: 2024
Abstract/Results:
ABSTRACT:
Background
In the search for the neural basis of conscious experience, perception and report are typically confounded as neural activity is recorded while participants explicitly report what they experience.
Aims
To disentangle perception from report using eye-movement analysis techniques based on convolutional neural networks and neurodynamical analyses based on information theory.
Method
We use a bistable visual stimulus that instantiates two well-known properties of conscious perception: integration and differentiation. Observers either perceive the stimulus as one integrated unitary object or as two differentiated objects that are clearly distinct from each other.
Results
Electroencephalograpy measures of integration and differentiation closely follow perceptual experience. We observed increased information integration between anterior to posterior electrodes prior to a switch to the integrated percept, and higher information differentiation of anterior signals leading up to reporting the differentiated percept. Information integration was linked to perception and even observed in a no-report condition (perceptual transitions were inferred from eye-movements). In contrast, the link between neural differentiation and perception was observed solely in the active report condition.
Conclusions
Perception and report require distinct levels of anterior-posterior network communication and anterior information differentiation: while front to back directed information is associated with changes in the content of perception, regardless of report, frontal information differentiation was absent in no-report conditions, and therefore has a different role not directly linked to perception per se.
Accessibility: Document exists in file
Language:
eng
Author:
van Gaal, S.
Secondary author(s):
Canales-Johnson, A., Ince, R., Chennu, S.
Document type:
Final report
Number of reproductions:
1
Reference:
van Gaal, S., Canales-Johnson, A., Ince, R., & Chennu, S. (2024). Final report - Zooming in on the true neural mechanisms of phenomenal consciousness.
Indexed document: No
Keywords: Consciousness / Perception / Information theory / Report

Final report - Zooming in on the true neural mechanisms of phenomenal consciousness

Final report - Zooming in on the true neural mechanisms of phenomenal consciousness
DocumentDistributed representations of prediction error signals across the cortical hierarchy are synergistic2024

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-2020-100
Location: BF-GMS
Title:
100 - Zooming in on the true neural mechanisms of phenomenal consciousness
Duration: 2021-04 - 2024-02
Researcher(s):
Simon van Gaal, Andres Canales-Johnson, Robin Ince, Srivas Chennu
Institution(s): Amsterdam, Brain and Cognition - ABC, University of Amsterdam (The Netherlands); Cambridge University (UK)
Contents: Contents:
Application form
Correspondence
Research Funding Agreement
Progress report
Final report
Articles
Language: eng
Author:
van Gaal, S.
Secondary author(s):
Canales-Johnson, A., Ince, R., Chennu, S.
Number of reproductions:
1
Keywords:
Phenomenology of consciousness / Neurodynamics of consciousness / Contents of consciousness / Integrated information theory of consciousness / Psychophysiology

Reference code: PT/FB/BL-2020-100.04
Location: BF-GMS
Title:
Distributed representations of prediction error signals across the cortical hierarchy are synergistic
Publication year: 2024
URL:
https://doi.org/10.1038/s41467-024-48329-7
Abstract/Results: ABSTRACT:
A relevant question concerning inter-areal communication in the cortex is whether these interactions are synergistic. Synergy refers to the complementary effect of multiple brain signals conveying more information than the sum of each isolated signal. Redundancy, on the other hand, refers to the common information shared between brain signals. Here, we dissociated cortical interactions encoding complementary information (synergy) from those sharing common information (redundancy) during prediction error (PE) processing. We analyzed auditory and frontal electrocorticography (ECoG) signals in five common awake marmosets performing two distinct auditory oddball tasks and investigated to what extent event-related potentials (ERP)
and broadband (BB) dynamics encoded synergistic and redundant information about PE processing. The information conveyed by ERPs and BB signals was synergistic even at lower stages of the hierarchy in the auditory cortex and between auditory and frontal regions. Using a brain-constrained neural network, we simulated the synergy and redundancy observed in the experimental
results and demonstrated that the emergence of synergy between auditory and frontal regions requires the presence of strong, long-distance, feedback, and feedforward connections. These results indicate that distributed representations of PE signals across the cortical hierarchy can be highly synergistic.
Accessibility: Document exists in file
Language:
eng
Author:
Gelens, F.
Secondary author(s):
Äijälä, J., Roberts, L., Komatsu, M., Uran, C., Jensen, M. A., Miller, K. J, Ince, R. A. A., Garagnani, M., Vinck, M., Canales-Johnson, A.
Document type:
Article
Number of reproductions:
1
Reference:
Gelens, F., Äijälä, J., Roberts, L., Komatsu, M., Uran, C., Jensen, M. A., Miller, K. J., Ince, R. A. A., Garagnani, M., Vinck, M., & Canales-Johnson, A. (2024). Distributed representations of prediction error signals across the cortical hierarchy are synergistic. Nature Communications, 15(1), 3941. https://doi.org/10.1038/s41467-024-48329-7
2-year Impact Factor: 14.7|2023
Times cited: 0|2024-06-26
Indexed document: Yes
Quartile: Q1
Keywords: AUDITORY-CORTEX / PREFRONTAL CORTEX / MARMOSET MONKEYS / CONNECTIONS / STREAMS / MODEL / BELT / SUBDIVISIONS / ORGANIZATION / PROJECTIONS

Distributed representations of prediction error signals across the cortical hierarchy are synergistic

Distributed representations of prediction error signals across the cortical hierarchy are synergistic