Resting State EEG as an Indicator of Cognitive Training Effect in Older Adults

N. V. Volf, E. Yu Privodnova, N. V. Volf

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

Although there are common principles that can be demonstrated in cognitive aging, enormous variability exists across individuals. Among other factors inter-individual variability is attributable to involvement in mental activity. The purpose of this study is to outline the changes of resting state EEG in aged men and women associated with difference in intellectual environment of their professional activity. Elderly (age 63.8, N=112) scientists (SA) and people unrelated to professional scientific activity (NSA) participated in the study. All subjects were employed full time. EEG was recorded from 26 symmetrical regions of the hemispheres in a states with closed and with open eyes. Power spectral density was calculated in delta, theta, alpha 1, 2, 3, beta 1, 2 and gamma frequency ranges. The bandwidths for the frequency bands were defined using individual alpha peak frequency as the anchor point. In condition with closed eyes, ANOVA revealed significant gender × frequency band × region × group (SA, NSA) interaction. Testing of interaction demonstrated effects in alpha 2, 3 rhythms power characterized by opposite changes of antero-posterior spectral power gradients in SA and NSA groups of men and women. There was no difference between SA and NSA groups in frontal power density. Among women members of SA group had lower posterior power than those of NSA group. In eyes open condition, significant asymmetry due to higher power values in right in comparison with left hemisphere in frontal region was found in SA group. Asymmetry of power values was not revealed in NSA.

Original languageEnglish
Title of host publication11th International Conference Bioinformatics of Genome Regulation and Structure\Systems Biology, BGRS\SB 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages117-119
Number of pages3
ISBN (Electronic)9781538668504
DOIs
Publication statusPublished - 26 Nov 2018
Event11th International Conference Bioinformatics of Genome Regulation and Structure\Systems Biology, BGRS\SB 2018 - Novosibirsk, Russian Federation
Duration: 20 Aug 201825 Aug 2018

Conference

Conference11th International Conference Bioinformatics of Genome Regulation and Structure\Systems Biology, BGRS\SB 2018
CountryRussian Federation
CityNovosibirsk
Period20.08.201825.08.2018

Keywords

  • gender difference
  • intellectual activity
  • older adults
  • resting state EEG

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