Age-related changes in human optokinetic function.
The aim of the present study was to investigate the effects of ageing on optokinetic function in labyrinthine-intact human subjects. Subjects aged 18-39 years, 40-59 years and > or = 60 years were tested for sensitivity to optokinetic stimulation using latency to the illusion of circularvection in an optokinetic drum. The latency to circularvection significantly increased with increasing age. These results suggest a decline in optokinetic sensitivity with increasing age, which may be related to age-related deterioration in the optokinetic visual pathways.
Department of Psychology and the Neuroscience Research Centre, University of Otago, Dunedin, New Zealand.
A J
AJ
Matheson
C L
CL
Darlington
P F
PF
Smith
D000293:Adolescent; D000328:Adult; D000375:Aging / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017120:Nystagmus, Optokinetic / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology