In a visual RT experiment, 5 male Ss were each confronted with 2 lights and instructed to
respond to 1 light but not respond when both lights occurred. The onset of the 2 lights was …

Centre–surround receptive field organization is a ubiquitous property in mammalian visual
systems, presumably tailored for extracting image features that are differentially distributed …

Schizophrenia is often accompanied by a range of visual perception deficits, with many
involving impairments in motion perception. The presence of perceptual abnormalities may …

What properties determine visually perceived space? We discovered that the perceived
relative distances of familiar objects in natural settings depended in unexpected ways on the …

We consider the horizontal plane at eye height, that is all objects seen at the horizon.
Although this plane visually degenerates into a line in the visual field, the ‘depth’ dimension …

We evaluated spatial displacement and temporal duration thresholds for discriminating the
motion direction of gratings for a broad range of speeds (0.06/s to 30/s) in fovea and at±30 …

If a random-dot pattern is presented in two successive displays in which the second is
spatially displaced in relation to the first, then under certain conditions observers are able to …

Segregation of objects from their backgrounds is a fundamental visual function and one that
is particularly effective when objects are in motion. Theoretically, suppressive center-…

Visual patterns have widely varying contrasts and elicit local signals of varying reliability,
ranging from noisy to relatively noise-free. One way to deal efficiently with the variable visual …

Vision is based on spatial correspondences between physically different structures—in
environment, retina, brain, and perception. An examination of the correspondence between …