Motion perception improves with larger sweep angles more than with faster sweeps

Evidence

The angular extent of the motion had a large effect on the owl’s discrimination sensitivity allowing a better discrimination for a larger angular range of the motion. In contrast, stimulus velocity or stimulus duration had a smaller, although significant effect. Overall there was no difference in the owls’ behavioural performance between “inward” noise sweeps (moving from lateral to frontal) compared to “outward” noise sweeps (moving from frontal to lateral). The owls did, however, respond more often to stimuli with changing motion direction in the frontal compared to the lateral space. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3178

Categorization

• XREF: Could connect to the reader’s own parallels between owl and human motion perception — motion-extent vs velocity tradeoffs in human auditory motion studies.