Changes in Connectivity and Local Synchrony after Cognitive
Stimulation - Intracerebral EEG Study

J 2018

Changes in Connectivity and Local Synchrony after Cognitive Stimulation - Intracerebral EEG Study

KLIMEŠ, Petr, Pavel JURÁK, Josef HALÁMEK, Robert ROMAN, Jan CHLÁDEK et. al.

Základní údaje

Originální název

Changes in Connectivity and Local Synchrony after Cognitive Stimulation - Intracerebral EEG Study

Autoři

KLIMEŠ, Petr (203 Česká republika, garant), Pavel JURÁK (203 Česká republika), Josef HALÁMEK (203 Česká republika), Robert ROMAN (203 Česká republika, domácí), Jan CHLÁDEK (203 Česká republika, domácí) a Milan BRÁZDIL (203 Česká republika, domácí)

Vydání

Biomedical Signal Processing and Control, Elsevier, 2018, 1746-8094

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

20602 Medical laboratory technology ;

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 2.943

Kód RIV

RIV/00216224:14110/18:00106951

Organizační jednotka

Lékařská fakulta

DOI

http://dx.doi.org/10.1016/j.bspc.2018.05.043

UT WoS

000440774700014

Klíčová slova anglicky

Local field potential; Connectivity; Power; Correlation; Intracerebral EEG

Štítky

14110127, podil, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 5. 3. 2019 09:34, Mgr. Pavla Foltynová, Ph.D.

Anotace

V originále

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.

Návaznosti

NV16-33798A, projekt VaV

Název: Modulace funkční konektivity kortikálních sítí vlivem STN DBS

Citovat

KLIMEŠ, Petr, Pavel JURÁK, Josef HALÁMEK, Robert ROMAN, Jan CHLÁDEK a Milan BRÁZDIL. Changes in Connectivity and Local Synchrony after Cognitive Stimulation - Intracerebral EEG Study. Biomedical Signal Processing and Control. Elsevier, 2018, roč. 45, August, s. 136-143. ISSN 1746-8094. Dostupné z: https://dx.doi.org/10.1016/j.bspc.2018.05.043.

@article{1474886,
   author = {Klimeš, Petr and Jurák, Pavel and Halámek, Josef and Roman, Robert and Chládek, Jan and Brázdil, Milan},
   article_number = {August},
   doi = {http://dx.doi.org/10.1016/j.bspc.2018.05.043},
   keywords = {Local field potential; Connectivity; Power; Correlation; Intracerebral EEG},
   language = {eng},
   issn = {1746-8094},
   journal = {Biomedical Signal Processing and Control},
   title = {Changes in Connectivity and Local Synchrony after Cognitive Stimulation - Intracerebral EEG Study},
   volume = {45},
   year = {2018}
}

TY  - JOUR
ID  - 1474886
AU  - Klimeš, Petr - Jurák, Pavel - Halámek, Josef - Roman, Robert - Chládek, Jan - Brázdil, Milan
PY  - 2018
TI  - Changes in Connectivity and Local Synchrony after Cognitive Stimulation - Intracerebral EEG Study
JF  - Biomedical Signal Processing and Control
VL  - 45
IS  - August
SP  - 136-143
EP  - 136-143
PB  - Elsevier
SN  - 17468094
KW  - Local field potential
KW  - Connectivity
KW  - Power
KW  - Correlation
KW  - Intracerebral EEG
N2  - 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.
ER  -

KLIMEŠ, Petr, Pavel JURÁK, Josef HALÁMEK, Robert ROMAN, Jan CHLÁDEK a Milan BRÁZDIL. Changes in Connectivity and Local Synchrony after Cognitive Stimulation - Intracerebral EEG Study. \textit{Biomedical Signal Processing and Control}. Elsevier, 2018, roč.~45, August, s.~136-143. ISSN~1746-8094. Dostupné z: https://dx.doi.org/10.1016/j.bspc.2018.05.043.

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