NDLI: EEG markers of upright posture in healthy individuals

Content Provider	Springer Nature Link
Author	Zhavoronkova, L. A. Zharikova, A. V. Kushnir, E. M. Mikhalkova, A. A.
Copyright Year	2012
Abstract	The EEG spectral-coherence parameters were analyzed in 10 healthy individuals (mean age, 22 ± 0.67 years) at different steps of verticalization, from the lying position to the sitting and standing positions. The maximal changes in all EEG parameters were revealed when the upright posture was maintained in the absence of visual control. Under these conditions, a power increase for the fast EEG components (the β- and γ-bands) was observed, as was an additional increase when the conditions of maintaining the upright posture were complicated. According to the results of the EEG’s coherent analysis, human verticalization revealed a specific increase for most of the EEG rhythm ranges in the right hemisphere, especially in the frontocentral and occipitoparietal regions, as well as for the interhemispheric coherences for these leads reflecting the involvement of both cortical and subcortical structures in these processes. When the posture maintenance conditions were complicated, an additional coherence increase in the fast EEG bands (the β-rhythm) was observed in the frontal cortical regions, which was evidence of the increase in the executive functions under these conditions.
Starting Page	604
Ending Page	612
Page Count	9
File Format	PDF
ISSN	03621197
Journal	Human Physiology
Volume Number	38
Issue Number	6
e-ISSN	16083164
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2012-11-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	vertical posture EEG power coherence Life Sciences Human Physiology Biomedicine general
Content Type	Text
Resource Type	Article
Subject	Physiology Physiology (medical)

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