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Visual analyses of movement are disproportionately reliant on luminance contrast, as opposed to colour differences. One consequence is that if a moving pattern is defined solely by changes in colour (is equiluminant), people can report having no sensation of movement, despite still being able to ‘see’ the pattern. This is called motion standstill. To date there have been no formal reports of foveal...
Observers often pair colours with earlier periods of motion. This observation has prompted the proposal that changes in colour are processed faster and perceived as occurring before physically coincident changes in direction—a brain-time account. Alternatively, it has been proposed that the sudden onset of a surface, or a direction reversal within a persistent surface, can trigger an analysis that...
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