Resting-state EEG power and connectivity are associated with alpha peak frequency slowing in healthy aging

Neurobiology of Aging
Brian ScallyJean-Francois Delvenne

Abstract

The individual alpha peak frequency (IAPF) of the human electroencephalography (EEG) typically experiences slowing with increasing age. Despite this hallmark change, studies that investigate modulations of conventional EEG alpha power and connectivity by aging and age-related neuropathology neglect to account for intergroup differences in IAPF. To investigate the relationship of age-related IAPF slowing with EEG power and connectivity, we recorded eyes-closed resting-state EEG in 37 young adults and 32 older adults. We replicated the finding of a slowed IAPF in older adults. IAPF values were significantly correlated with the frequency of maximum global connectivity and the means of their distributions did not differ, suggesting that connectivity was highest at the IAPF. Older adults expressed reduced global EEG power and connectivity at the conventional upper alpha band (10-12 Hz) compared with young adults. By contrast, groups had equivalent power and connectivity at the IAPF. The results suggest that conventional spectral boundaries may be biased against older adults or any group with a slowed IAPF. We conclude that investigations of alpha activity in aging and age-related neuropathology should be adapted to the IAPF of the i...Continue Reading

Citations

Jun 9, 2020·The International Journal of Clinical and Experimental Hypnosis·Seyedeh-Parisa ZareiAli Motie Nasrabadi
Mar 3, 2020·Frontiers in Aging Neuroscience·Shane FresnozaAnja Ischebeck
Mar 11, 2020·Frontiers in Psychology·Kate A YurgilPaul J Colombo
Dec 29, 2020·Clinical EEG and Neuroscience·Farooq KamalVanessa Taler
Oct 19, 2020·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Monique S BoordHannah A D Keage
Mar 21, 2021·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Majid Khalili-ArdaliUjwal Chaudhary
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Apr 27, 2021·Neurophysiologie clinique = Clinical neurophysiology·Geoffroy VellieuxPierre Lozeron
May 1, 2021·Brain Sciences·Fabian SchwimmbeckYvonne Höller
Apr 27, 2021·Frontiers in Neuroscience·Thorben Hülsdünker, Andreas Mierau
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Nov 23, 2021·Frontiers in Aging Neuroscience·Adeline JabèsPierre Lavenex

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