Changes in connectivity and local synchrony after cognitive stimulation - Intracerebral EEG study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00159816%3A_____%2F18%3A00069117" target="_blank" >RIV/00159816:_____/18:00069117 - isvavai.cz</a>

Alternative codes found

RIV/68081731:_____/18:00493420 RIV/00216224:14110/18:00106951

Result on the web

<a href="http://dx.doi.org/10.1016/j.bspc.2018.05.043" target="_blank" >http://dx.doi.org/10.1016/j.bspc.2018.05.043</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.bspc.2018.05.043" target="_blank" >10.1016/j.bspc.2018.05.043</a>

Result language

angličtina

Original language name

Changes in connectivity and local synchrony after cognitive stimulation - Intracerebral EEG study

Original language description

Electroencephalographic studies utilize event-related power decrease/increase in order to analyze changes of neuronal activity in a single EEG channel during cognitive tasks. Other analytical approaches draw on bivariate methods which evaluate connectivity between two EEG channels. Despite the fact that spatial mapping of combined results of power and connectivity analyses may be used to study the dynamics of neuronal activation patterns, they are normally evaluated separately as different phenomena. Here we show the evaluation of dynamic changes in linear correlation after cognitive stimulation together with changes in power levels in the same channel pairs. Our results demonstrate the temporal evolution of synchronization patterns across the whole brain with a focus on the anatomical structure of the hippocampus. We observed a pattern of local and distant synchrony during cognitive processing, occurring 500 ms after stimulus onset in approximately 1% of all channel pairs. We hypothesize that evaluation of changes in connectivity, together with dynamic changes in power levels, can help identify dominant structures in the process of mental activity after a certain type of cognitive task. This can possibly lead to better understanding of synchronization processes at the neuronal and systemic level. (C) 2018 Elsevier Ltd. All rights reserved.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20602 - Medical laboratory technology (including laboratory samples analysis; diagnostic technologies) (Biomaterials to be 2.9 [physical characteristics of living material as related to medical implants, devices, sensors])

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

BIOMEDICAL SIGNAL PROCESSING AND CONTROL

ISSN

1746-8094

e-ISSN

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Volume of the periodical

45

Issue of the periodical within the volume

August

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

136-143

UT code for WoS article

000440774700014

EID of the result in the Scopus database

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