Research output: Contribution to journal › Article › peer-review
EEG dynamics of spontaneous stimulus-independent thoughts. / Bocharov, Andrey V.; Knyazev, Gennady G.; Savostyanov, Alexander N. et al.
In: Cognitive Neuroscience, Vol. 10, No. 2, 03.04.2019, p. 77-87.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - EEG dynamics of spontaneous stimulus-independent thoughts
AU - Bocharov, Andrey V.
AU - Knyazev, Gennady G.
AU - Savostyanov, Alexander N.
AU - Astakhova, Tatiana N.
AU - Tamozhnikov, Sergey S.
N1 - Publisher Copyright: © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2019/4/3
Y1 - 2019/4/3
N2 - In this study, we aimed to compare the oscillatory dynamics accompanying self-referential and non-self-referential stimulus-independent thoughts. Electroencephalograms were recorded in 30 healthy participants who were asked to press buttons classifying their spontaneous thoughts as self-referential or non-self-referential. EEG data were analyzed using independent component analysis in conjunction with dipole localization. Self-referential thoughts, as compared to non-self-referential thoughts, were accompanied by more pronounced decreases of theta, alpha, and beta spectral power in the anterior hub of the default-mode network, in the left lateral prefrontal, motor/somatosensory, and temporal cortices. These oscillatory dynamics are interpreted as a reflection of autobiographical memory retrieval intrinsic to self-referential thoughts. Abbreviations: BA: Brodmann area; BOLD: blood oxygenation level-dependent; DMN: default mode network; EEG: electroencephalogram; ERSP: event-related spectral perturbations; fMRI: functional magnetic resonance imaging; PCC: posterior cingulate cortex; PET: positron emission tomography; PFC: prefrontal cortex; SIT: stimulus-independent thought; WM: working memory.
AB - In this study, we aimed to compare the oscillatory dynamics accompanying self-referential and non-self-referential stimulus-independent thoughts. Electroencephalograms were recorded in 30 healthy participants who were asked to press buttons classifying their spontaneous thoughts as self-referential or non-self-referential. EEG data were analyzed using independent component analysis in conjunction with dipole localization. Self-referential thoughts, as compared to non-self-referential thoughts, were accompanied by more pronounced decreases of theta, alpha, and beta spectral power in the anterior hub of the default-mode network, in the left lateral prefrontal, motor/somatosensory, and temporal cortices. These oscillatory dynamics are interpreted as a reflection of autobiographical memory retrieval intrinsic to self-referential thoughts. Abbreviations: BA: Brodmann area; BOLD: blood oxygenation level-dependent; DMN: default mode network; EEG: electroencephalogram; ERSP: event-related spectral perturbations; fMRI: functional magnetic resonance imaging; PCC: posterior cingulate cortex; PET: positron emission tomography; PFC: prefrontal cortex; SIT: stimulus-independent thought; WM: working memory.
KW - default mode network
KW - EEG
KW - mind wandering
KW - self-referential thoughts
KW - stimulus-independent thoughts
KW - DEFAULT MODE NETWORK
KW - ALPHA OSCILLATIONS
KW - METAANALYSIS
KW - LOAD
KW - AUTOBIOGRAPHICAL MEMORY
KW - SELF
KW - PREFRONTAL CORTEX
KW - FRONTAL-THETA
KW - BRAIN
UR - http://www.scopus.com/inward/record.url?scp=85055508836&partnerID=8YFLogxK
U2 - 10.1080/17588928.2018.1534820
DO - 10.1080/17588928.2018.1534820
M3 - Article
C2 - 30303447
AN - SCOPUS:85055508836
VL - 10
SP - 77
EP - 87
JO - Cognitive Neuroscience
JF - Cognitive Neuroscience
SN - 1758-8928
IS - 2
ER -
ID: 17244751