This research was supported under Australian Research Council's Discovery Projects funding scheme (project number DP0770568).
An ERP study of age-related differences in the central cost of interlimb coordination
Article first published online: 19 JAN 2010
Copyright © 2010 Society for Psychophysiological Research
Volume 47, Issue 3, pages 501–511, May 2010
How to Cite
Fujiyama, H., Garry, M. I., Martin, F. H. and Summers, J. J. (2010), An ERP study of age-related differences in the central cost of interlimb coordination. Psychophysiology, 47: 501–511. doi: 10.1111/j.1469-8986.2009.00954.x
- Issue published online: 6 APR 2010
- Article first published online: 19 JAN 2010
- (Received September 1, 2008; Accepted June 29, 2009)
- Interlimb coordination;
- Event-related potentials;
The study investigated event-related EEG potentials during concurrent performance of interlimb coordination and visual oddball tasks by younger and older adults. Coordination task difficulty was equated between age groups by allowing participants to perform the task at self-determined frequencies. The amplitude of the P3b component of the event-related potentials (ERPs) elicited by visual task targets showed a different pattern across midline sites (Fz, Cz, Pz) for younger and older adults. While younger adults showed a parietal maximum, P3b amplitudes in older adults did not differ across midline site, with lower amplitudes at central and parietal sites than younger adults but higher amplitude at the frontal site. Younger adults also had significantly shorter P3b latency than older adults. The results suggest that older adults may rely more on cognitive control of their movements than younger adults.