Sentence examples for motion contrast thresholds from inspiring English sources

Motion contrast thresholds were determined by a four-alternative forced-choice (4 afc) staircase procedure with a modification by Kernbach for presenting a plaid (size = 3.8°) moving within a stationary spatial and temporal Gaussian envelope in one of four directions.

The experimental setup allowed (limited by screen size) measurement of DPR up to 20° eccentricity, i.e. not as far into the periphery as for the motion contrast thresholds but well beyond the macular region.

Figure  4 shows the contrast thresholds for motion perception as a function of eccentricity in the visual field.

These elevated contrast thresholds for motion perception extend far beyond this eccentricity, in conflict with a widespread assumption that the effects of manifest ARM are restricted to the macula.

Monocular contrast thresholds for motion perception were measured along the horizontal meridian in the nasal and temporal visual field at 10°, 20°, 30° and 40° eccentricity and in the temporal visual field additionally at 60°.

In the present study, we determined the contrast thresholds for motion perception far into the periphery of the visual field on the horizontal meridian, up to 40° on the nasal, and 60° on the temporal side.

Object recognition contrast thresholds from 5 participants were unreliable due to failed staircase procedures, with a further participant showing inconsistent motion coherence thresholds in repeated runs.

For all subjects, contrast thresholds were assessed in Maxwellian-view.

To study the effect of prematurity on monocular chromatic contrast thresholds (CCT) and achromatic contrast sensitivity (ACS).

(3) Motion contrast across the object boundary [26].

The motion contrast of video sequence is measured by motion entropy.