Age differences in resting state EEG and their relation to eye movements and cognitive performance

Stacey, J.E. ORCID: 0000-0003-4035-712X, Crook-Rumsey, M. ORCID: 0000-0003-3031-3502, Sumich, A. ORCID: 0000-0003-4333-8442, Howard, C.J. ORCID: 0000-0002-8755-1109, Crawford, T., Livne, K., Lenzoni, S. ORCID: 0000-0003-3576-1187 and Badham, S. ORCID: 0000-0002-6890-102X, 2021. Age differences in resting state EEG and their relation to eye movements and cognitive performance. Neuropsychologia, 157: 107887. ISSN 0028-3932

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Prior research has focused on EEG differences across age or EEG differences across cognitive tasks/eye tracking. There are few studies linking age differences in EEG to age differences in behavioural performance which is necessary to establish how neuroactivity corresponds to successful and impaired ageing. Eighty-six healthy participants completed a battery of cognitive tests and eye-tracking measures. Resting state EEG (n=75, 31 young, 44 older adults) was measured for delta, theta, alpha and beta power as well as for alpha peak frequency. Age deficits in cognition were aligned with the literature, showing working memory and inhibitory deficits along with an older adult advantage in vocabulary. Older adults showed poorer eye movement accuracy and response times, but we did not replicate literature showing a greater age deficit for antisaccades than for prosaccades. We replicated EEG literature showing lower alpha peak frequency in older adults but not literature showing lower alpha power. Older adults also showed higher beta power and less parietal alpha power asymmetry than young adults. Interaction effects showed that better prosaccade performance was related to lower beta power in young adults but not in older adults. Performance at the trail making test part B (measuring task switching and inhibition) was improved for older adults with higher resting state delta power but did not depend on delta power for young adults. It is argued that individuals with higher slow-wave resting EEG may be more resilient to age deficits in tasks that utilise cross-cortical processing.

Item Type: Journal article
Publication Title: Neuropsychologia
Creators: Stacey, J.E., Crook-Rumsey, M., Sumich, A., Howard, C.J., Crawford, T., Livne, K., Lenzoni, S. and Badham, S.
Publisher: Elsevier
Date: 8 May 2021
Volume: 157
ISSN: 0028-3932
S002839322100138XPublisher Item Identifier
Divisions: Schools > School of Social Sciences
Record created by: Linda Sullivan
Date Added: 12 May 2021 08:08
Last Modified: 08 May 2022 03:00

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