NDLI: Features of temporal dynamics of oscillatory brain activity during creative problem solving in young and elderly adults

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Features of temporal dynamics of oscillatory brain activity during creative problem solving in young and elderly adults

Content Provider	Springer Nature Link
Author	Privodva, E. Yu. Volf, N. V.
Copyright Year	2016
Abstract	Considering evidence from psychological research, successful aging is accompanied by long-term preservation of creative potential despite slowing of mental processes; however, the neurophysiological mechanisms that ensure the maintenance of those abilities are unclear. In this study, we compared temporal dynamics of changes induced by divergent task electrical activity (event-related spectral perturbations, ERSP) in a wide range of EEG frequencies in the younger (YA, N = 80, 22.6 ± 3 years) and older (OA, N = 80, 63.4 ± 6.7 years) age groups. The groups were sex-matched. EEG was recorded while participants performed the “alternate uses task”. The time ranges 200–400, 400–600 and 600–800 ms after stimulus presentation were analyzed. It was found that task performance was associated with distinct patterns of ERSP changes in the θ and α3 rhythms in young and elderly subjects. The elderly subjects exhibited smaller θ-desyn-chronization of anterior brain areas at the initial stage of creative thinking as compared to young participants. The gradient of fronto-parietal activation was unchanged during the entire interval of analysis in the elderly subjects, whereas it was observed in young adults in the interval 200–400 ms only. Decrease in desynchronization of the parieto-occipital area in the α3 rhythm in the interval 600–800 ms in elderly subjects was revealed, and it resulted in disappearance of differences between parietal and fronto-temporal areas, while they were preserved in the young group. Significant correlations between ERSP in the α3 band and originality, in the β1 band and solution rate were obtained in old adults exclusively. Identified age-related changes in oscillatory activity may be the basis of different strategies in solving creative task in young and elderly adults.
Starting Page	469
Ending Page	475
Page Count	7
File Format	PDF
ISSN	03621197
Journal	Human Physiology
Volume Number	42
Issue Number	5
e-ISSN	16083164
Language	English
Publisher	Pleiades Publishing
Publisher Date	2016-10-18
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	EEG verbal creativity aging age-related differences θ α3 Life Sciences Human Physiology Biomedicine
Content Type	Text
Resource Type	Article
Subject	Physiology Physiology (medical)

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