Temporal Phase Discrimination and Gaps: Stimuli

Stimuli for

Temporal phase discrimination depends critically on separation

Jonathan D. Victor and Mary M. Conte

Vision Research, in press (2002)

In the demos below (left side), all regions are sinusoidally modululated at the same frequency. The task is to determine whether the left or the right bar leads in temporal phase. The graphs on the right indicate the contrast modulation.

top two-bar stimuli three-bar stimuli return to abstract page


Two bars, no gap (easy)

Two bars, gap (harder)

top two-bar stimuli three-bar stimuli return to abstract page
Three bars, consistent with apparent motion (easy)

Three bars, static filler (harder)

Three bars, inconsistent with apparent motion (harder still)

top two-bar stimuli three-bar stimuli return to abstract page