ATTENTIONAL MODULATION OF VISUAL PROCESSES IN MOTION PERCEPTION

The present research examined the effects of spatially directed attent ion on the temporal characteristics of information transmission in the visual system. A two-stimulus, two-flash, long-range motion display w as used. The results showed that attending to 1 of the 2 stimuli alter ed the perceived direction of motion, the pattern of motion and no-mot ion responses, and ratings of motion quality. The results were compare d with predictions derived from 2 conceptual frameworks of attention: a temporal-profile model and an additive account. The results supporte d the temporal-profile model.