PMID- 21683942
OWN - NLM
STAT- MEDLINE
DCOM- 20120514
LR  - 20220317
IS  - 1872-6240 (Electronic)
IS  - 0006-8993 (Linking)
VI  - 1402
DP  - 2011 Jul 21
TI  - The default mode network and EEG alpha oscillations: an independent component 
      analysis.
PG  - 67-79
LID - 10.1016/j.brainres.2011.05.052 [doi]
AB  - The default mode network (DMN) has been principally investigated using positron 
      emission tomography (PET) and functional magnetic resonance imaging (fMRI) and 
      has received mixed support in electroencephalographic (EEG) studies. In 
      particular, the existing evidence is too inconsistent to allow formulation of 
      specific hypotheses linking DMN activity to traditional EEG frequency bands. In 
      this study, we aimed to test whether blind decomposition methods are able to 
      identify in EEG data spatial patterns resembling the DMN as it is described in 
      PET and fMRI studies. Further we aimed to test a degree of task-relatedness of 
      DMN patterns identified in the traditional EEG frequency bands. To answer these 
      questions we collected data both in a resting state and during performance of two 
      experimental tasks: an explicit judgment of facial affect and a social game task. 
      Individual differences in amount of self-referential thoughts during the resting 
      state were measured by a short self-report scale. Only alpha band spatial 
      patterns simultaneously showed a considerable overlap with the DMN and high 
      correlations with presumptive DMN function-related outcomes both in the resting 
      state and during the social game task. Spontaneous self-referential thoughts were 
      associated with enhanced alpha activity in the posterior DMN hub, whereas 
      processing of DMN function-related external stimuli disrupted this activity and 
      simultaneously caused partial alpha phase-locking to external events. This 
      evidence implies that synchronization of internal mental processes, as opposed to 
      the processing of external stimuli, might be the primary function of alpha 
      oscillations which is bound to be related to activity of the DMN.
CI  - Copyright (c) 2011 Elsevier B.V. All rights reserved.
FAU - Knyazev, Gennady G
AU  - Knyazev GG
AD  - Institute of Physiology, Siberian Branch of the Russian Academy of Medical 
      Sciences, Novosibirsk, Russia. knyazev@physiol.ru
FAU - Slobodskoj-Plusnin, Jaroslav Y
AU  - Slobodskoj-Plusnin JY
FAU - Bocharov, Andrey V
AU  - Bocharov AV
FAU - Pylkova, Liudmila V
AU  - Pylkova LV
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20110527
PL  - Netherlands
TA  - Brain Res
JT  - Brain research
JID - 0045503
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Alpha Rhythm/*physiology
MH  - Biological Clocks/*physiology
MH  - Cerebral Cortex/*physiology
MH  - Electroencephalography/*methods
MH  - Female
MH  - Humans
MH  - Male
MH  - Nerve Net/*physiology
MH  - Young Adult
EDAT- 2011/06/21 06:00
MHDA- 2012/05/15 06:00
CRDT- 2011/06/21 06:00
PHST- 2010/12/18 00:00 [received]
PHST- 2011/04/25 00:00 [revised]
PHST- 2011/05/20 00:00 [accepted]
PHST- 2011/06/21 06:00 [entrez]
PHST- 2011/06/21 06:00 [pubmed]
PHST- 2012/05/15 06:00 [medline]
AID - S0006-8993(11)00986-3 [pii]
AID - 10.1016/j.brainres.2011.05.052 [doi]
PST - ppublish
SO  - Brain Res. 2011 Jul 21;1402:67-79. doi: 10.1016/j.brainres.2011.05.052. Epub 2011 
      May 27.