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The dynamics of human cognition: Increasing global integration coupled with decreasing segregation found using iEEG

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The dynamics of human cognition : Increasing global integration coupled with decreasing segregation found using iEEG. / Cruzat, Josephine; Deco, Gustavo; Tauste-Campo, Adrià; Principe, Alessandro; Costa, Albert; Kringelbach, Morten L.; Rocamora, Rodrigo.

In: NeuroImage, Vol. 172, 15.05.2018, p. 492-505.

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Cruzat, Josephine ; Deco, Gustavo ; Tauste-Campo, Adrià ; Principe, Alessandro ; Costa, Albert ; Kringelbach, Morten L. ; Rocamora, Rodrigo. / The dynamics of human cognition : Increasing global integration coupled with decreasing segregation found using iEEG. In: NeuroImage. 2018 ; Vol. 172. pp. 492-505.

Bibtex

@article{5744d8270dbd44a982a0154a4758668d,
title = "The dynamics of human cognition: Increasing global integration coupled with decreasing segregation found using iEEG",
abstract = "Cognitive processing requires the ability to flexibly integrate and process information across large brain networks. How do brain networks dynamically reorganize to allow broad communication between many different brain regions in order to integrate information? We record neural activity from 12 epileptic patients using intracranial EEG while performing three cognitive tasks. We assess how the functional connectivity between different brain areas changes to facilitate communication across them. At the topological level, this facilitation is characterized by measures of integration and segregation. Across all patients, we found significant increases in integration and decreases in segregation during cognitive processing, especially in the gamma band (50–90 Hz). We also found higher levels of global synchronization and functional connectivity during task execution, again particularly in the gamma band. More importantly, functional connectivity modulations were not caused by changes in the level of the underlying oscillations. Instead, these modulations were caused by a rearrangement of the mutual synchronization between the different nodes as proposed by the “Communication Through Coherence” Theory.",
keywords = "Cognition, CTC theory, iEEG, Integration, Segregation",
author = "Josephine Cruzat and Gustavo Deco and Adri{\`a} Tauste-Campo and Alessandro Principe and Albert Costa and Kringelbach, {Morten L.} and Rodrigo Rocamora",
year = "2018",
month = may,
day = "15",
doi = "10.1016/j.neuroimage.2018.01.064",
language = "English",
volume = "172",
pages = "492--505",
journal = "NeuroImage",
issn = "1053-8119",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - The dynamics of human cognition

T2 - Increasing global integration coupled with decreasing segregation found using iEEG

AU - Cruzat, Josephine

AU - Deco, Gustavo

AU - Tauste-Campo, Adrià

AU - Principe, Alessandro

AU - Costa, Albert

AU - Kringelbach, Morten L.

AU - Rocamora, Rodrigo

PY - 2018/5/15

Y1 - 2018/5/15

N2 - Cognitive processing requires the ability to flexibly integrate and process information across large brain networks. How do brain networks dynamically reorganize to allow broad communication between many different brain regions in order to integrate information? We record neural activity from 12 epileptic patients using intracranial EEG while performing three cognitive tasks. We assess how the functional connectivity between different brain areas changes to facilitate communication across them. At the topological level, this facilitation is characterized by measures of integration and segregation. Across all patients, we found significant increases in integration and decreases in segregation during cognitive processing, especially in the gamma band (50–90 Hz). We also found higher levels of global synchronization and functional connectivity during task execution, again particularly in the gamma band. More importantly, functional connectivity modulations were not caused by changes in the level of the underlying oscillations. Instead, these modulations were caused by a rearrangement of the mutual synchronization between the different nodes as proposed by the “Communication Through Coherence” Theory.

AB - Cognitive processing requires the ability to flexibly integrate and process information across large brain networks. How do brain networks dynamically reorganize to allow broad communication between many different brain regions in order to integrate information? We record neural activity from 12 epileptic patients using intracranial EEG while performing three cognitive tasks. We assess how the functional connectivity between different brain areas changes to facilitate communication across them. At the topological level, this facilitation is characterized by measures of integration and segregation. Across all patients, we found significant increases in integration and decreases in segregation during cognitive processing, especially in the gamma band (50–90 Hz). We also found higher levels of global synchronization and functional connectivity during task execution, again particularly in the gamma band. More importantly, functional connectivity modulations were not caused by changes in the level of the underlying oscillations. Instead, these modulations were caused by a rearrangement of the mutual synchronization between the different nodes as proposed by the “Communication Through Coherence” Theory.

KW - Cognition

KW - CTC theory

KW - iEEG

KW - Integration

KW - Segregation

UR - http://www.scopus.com/inward/record.url?scp=85041730755&partnerID=8YFLogxK

U2 - 10.1016/j.neuroimage.2018.01.064

DO - 10.1016/j.neuroimage.2018.01.064

M3 - Journal article

C2 - 29425897

AN - SCOPUS:85041730755

VL - 172

SP - 492

EP - 505

JO - NeuroImage

JF - NeuroImage

SN - 1053-8119

ER -