This paper derives the constraints on a set of channels that would be consistent with the
results of several experiments on the temporal properties of the visual system, and it …

Temporal frequency discrimination was measured above threshold with a two-alternative
spatial forced-choice procedure. Stimuli were two 1 deg homogeneous fields modulated …

The initial filtering of the image by the human visual system involves only a small number of
temporal filters. Several studies suggest there are in fact only two, but some suggest that a …

Temporal frequency discrimination at and above the detection threshold has been studied
using gratings of low (0.2 c/deg) and medium (2 c/deg) spatial frequencies. At 2 c/deg the …

Abstract McKee, Silverman and Nakayama (1986; Vision Research, 26, 609–619) have
shown that velocity discrimination performance is little affected by quite large random …

In standard frequency-discrimination experiments either the retinal spatial frequencies
(cycles per degree) or the object spatial frequencies (real world) could be compared …

Recent data from several laboratories have shown that spatial-frequency discrimination is
not a smooth function of frequency but rather exhibits alternate peaks and troughs. A model …

How does our temporal vision change as the mean illuminance reduces? We have
examined the processing of near-threshold temporal information for a range of illuminance …

Two experiments were run to investigate the contrast sensitivity of the visual system to
sinusoidal gratings of variable spatial frequency when the on-and offsets of their …

Frequency-of-seeing and sensitivity-duration curves were collected for temporal signals of
limited spectral extent. A comparison of the two sorts of data suggests that a stimulus is …