Abstract
We examined age effects on Movement related potentials (MRPs) in 13 young (mean age = 29.3 years) and 13 old (mean age = 67.2 years) normal adults in right, left and bimanual self-paced button press conditions. Both the groups generated a slowly rising readiness potential (RP) at about 1000 ms, a negative shift (NS′) at about 450 ms and a motor potential (MP) at about 100 ms prior to movement. The RP was symmetrical, bilaterally distributed and maximal at the vertex in all conditions in both the groups. Both the groups produced contralaterally enhanced NS′ and MP components in unimanual conditions. In contrast to prior reports, topographical distribution, onset latency and mean amplitude were comparable between young and old subjects for the RP, NS′ and MP components of the MRP. The results indicate that motor programming as indexed by MRPs is unaffected by normal aging.
Original language | English (US) |
---|---|
Pages (from-to) | 27-31 |
Number of pages | 5 |
Journal | Neuroscience Letters |
Volume | 119 |
Issue number | 1 |
DOIs | |
State | Published - Oct 30 1990 |
Keywords
- Aging
- Bereitschaftspotential
- Movement-related potential
- Readiness potential
- Supplementary motor area
ASJC Scopus subject areas
- Neuroscience(all)