Rhesus Dynamic Visual Acuity.
Final rept. 1985-1986,
LETTERMAN ARMY INST OF RESEARCH PRESIDIO OF SAN FRANCISCO CA
Pagination or Media Count:
Rhesus dynamic visual acuity at target angular velocities from 0 degssec to173 degssec. Test stimuli consisted of negative contrast achromatic and chromatic Landolt Rings. Results indicate significant training effects. Improvement in acuity primarily occurred at velocities beyond the range of normal smooth pursuit eye movements 80-100 degssec. As with previous human studies, individual differences in rhesus dynamic visual acuity were observed. Chromatic dynamic visual acuity revealed wavelength specific functions that indicate an interaction between stimulus chromaticity and target angular velocity, not able to be observed with achromatic test stimuli. It is suggested that the use of chromatic stimuli reveals the presence of velocity sensitive mechanisms exhibiting differential chromatic sensitivity.
- Anatomy and Physiology