The effects of spatial frequency and temporal waveform on three measures of temporal processing |
| |
Authors: | J G May F Martin F MacCana W J Lovegrove |
| |
Institution: | Department of Psychology, University of New Orleans. |
| |
Abstract: | The effects of spatial frequency and temporal transition of sine-wave grating onset and offset were assessed using measures of reaction time, visual persistence, and temporal order judgements. The stimuli were lateralized fields, separated by 1 degree of visual angle. Slow temporal transition resulted in significantly poorer performance than did abrupt onset and offset, but spatial frequency had a minimal effect. Thus, the latency, temporal resolution, and temporal ordering of events are mediated by a mechanism that is sensitive to abrupt temporal transients. The stimulus conditions employed did not result in a shift in the point of subjective simultaneity. |
| |
Keywords: | |
|
|