Spontaneous alpha peak frequency predicts working memory performance across the age span

C R Clark; M D Veltmeyer; R J Hamilton; E Simms; R Paul; Daniel F Hermens; E Gordon

doi:10.1016/j.ijpsycho.2003.12.011

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Spontaneous alpha peak frequency predicts working memory performance across the age span

Journal article

Peer reviewed

Spontaneous alpha peak frequency predicts working memory performance across the age span

C R Clark, M D Veltmeyer, R J Hamilton, E Simms, R Paul, Daniel F Hermens and E Gordon

International Journal of Psychophysiology, Vol.53(1), pp.1-9

2004

DOI: https://doi.org/10.1016/j.ijpsycho.2003.12.011

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Abstract

alpha peak frequency

electroencephalography

working memory

digit span

aging

Working memory capacity has been consistently shown to decline with increasing age. Mechanisms underlying this decline are poorly understood. One index that has been found to predict performance on memory tests is alpha peak frequency, the peak of spectral alpha power of the EEG. Activity in the alpha band has been also associated with higher cognitive functions including attention and anticipation and has been shown to slow with age. Few studies, however, have examined whether there might be a relationship between WM decline and alpha peak frequency. The present study specifically investigated this relationship. Digit span was used as the index of WM function. The study made use of 550 normal subjects aged between 11 and 70 years in the Brain Resource International Database. The data were acquired from six laboratories located in the USA (2), Europe (2) and Australia (2). Forward and reverse digit span were found to be lower in older relative to younger age groups. Spontaneous alpha peak frequency slowed with age and more so at anterior than posterior sites. Frontal alpha peak frequency was found to be a significant predictor of reverse digit span, with each 1 Hz increase in frequency associated with a 0.21 increase in reverse digit span score and this was independent of age, indicating a positive relationship between alpha peak frequency and working memory performance. © 2003 Elsevier B.V. All rights reserved.

Details

Title: Spontaneous alpha peak frequency predicts working memory performance across the age span
Authors: C R Clark (Author) - Flinders University
M D Veltmeyer (Author) - Flinders University
R J Hamilton (Author) - Brain Resource International Database
E Simms (Author) - Brain Resource International Database
R Paul (Author) - Brown Medical School, United States
Daniel F Hermens (Author) - Brain Resource International Database
E Gordon (Author) - University of Sydney
Publication details: International Journal of Psychophysiology, Vol.53(1), pp.1-9
Publisher: Elsevier BV
DOI: 10.1016/j.ijpsycho.2003.12.011
ISSN: 0167-8760
Organisation Unit: Thompson Institute; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99451302002621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Neurosciences; Physiology; Psychology; Psychology, Biological; Psychology, Experimental

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