Format

Send to

Choose Destination
Brain Res Cogn Brain Res. 2000 Jun;9(3):223-6.

Prism adaptation in normal aging: slower adaptation rate and larger aftereffect.

Author information

1
Departamento de Fisiolog¿ia, Facultad de Medicina, Universidad Nacional Aut¿onoma de M¿exico, D.F., C.P. 04510, Mexico, Mexico. jfr@servidor.unam.mx

Abstract

The effect of aging on prism adaptation, a motor learning paradigm, was evaluated. Different measures were obtained from a task consisting of throwing clay balls to a target in front of the subjects before, during, and after wearing prisms that deviate the visual field by several degrees. When performing the task without wearing the prisms, the aged subjects showed a larger hit variance, whereas the young subjects hit closer to the target. When donning the prisms, the aged group adapted more slowly than the controls, although after throwing all the balls both groups showed the same adaptation levels. After removing the prisms, the aged group showed a larger aftereffect. These findings suggest that the aftereffect requires the involvement of non-cognitive and cognitive processes and indicate that both adaptation and aftereffect are influenced by aging.

PMID:
10808133
DOI:
10.1016/s0926-6410(99)00057-9
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center