Dependency of motion coherence thresholds on adapting speeds

Abstract

We measured motion coherence thresholds with and without prior upward motion adaptation. The results showed that the adaptation to fast motion led to increasing upward and decreasing downward coherence thresholds for subsequently presented test stimuli moving faster than the adapting speed. Thresholds for slower test stimuli remained unchanged. Furthermore, the adaptation to slow motion reduced downward coherence thresholds for test stimuli moving slower than the adapting speed. Thresholds for higher test stimuli remained unchanged.