This is a survey of psychophysical studies of motion perception carried out mainly in the last
10 years. It covers a wide range of topics, including the detection and interactions of local …

Adaptation to prevailing stimuli is a ubiquitous property of the visual system that optimizes its
dynamic range. The perceived difference in orientation of successively presented lines of …

When incompatible images are presented to the two eyes, one image dominates awareness
while the other is rendered invisible by interocular suppression. It has remained unclear …

Radial frequency (RF) patterns, paths deformed from circular by a sinusoidal modulation of
radius, have proved valuable stimuli for investigation of visual shape processing. Their utility …

Many studies have investigated how multiple stimuli combine to reach threshold. There are
broadly speaking two ways this can occur: additive summation (AS) where inputs from the …

The perceived shapes of almost circular paths are modified by concentrically placed context
paths. These induced changes have previously been attributed to curvature masking. This …

Observers make sense of scenes by parsing images on the retina into meaningful objects.
This ability is retained for line drawings, demonstrating that critical information is …

The human visual system's extreme sensitivity to subtle changes in shape can often be
attributed to global pooling of local information. This has been shown for shapes described …

Abstract Objects are often identified by the shape of their contours. In this study, visual
search tasks were used to reveal a visual dimension critical to the analysis of the shape of a …

There is an ongoing debate over whether there is convincing evidence in support of global
contour integration in shape discrimination tasks, particularly when using radial frequency …