Color vs. motion: Decoding perceptual representations from individual differences

Perceptual asynchrony: motion leads color.

It is widely accepted that motion and color are processed in separate brain areas of primates. Numerous studies on monkeys suggest that neural mechanisms responsible for motion processing respond faster than those for color. Recent studies on humans, however, provide contradictory evidence. Is this discrepancy due to a gap between species (animal vs. human), or between measures (neurophysiologi...

Semantic and Perceptual Representations of Color

Perceptual psychology widely operationalizes color appearance as a construct with very close, even isomorphic, ties to color naming structure. Indeed, a considerable body of psychological and psychophysics research uses naming–based tasks to derive structural properties of color appearance space. New research investigating the relations linking color similarity and color naming structures sugge...

Individual Differences in Color Vision

Decoding individual natural scene representations during perception and imagery

We used a multi-voxel classification analysis of functional magnetic resonance imaging (fMRI) data to determine to what extent item-specific information about complex natural scenes is represented in several category-selective areas of human extrastriate visual cortex during visual perception and visual mental imagery. Participants in the scanner either viewed or were instructed to visualize pr...

Motion from Color

The use of color images for motion estimation is investigated stage in the 3D motion estimation process we need to in this work. Beyond the straightforward approach of using find the 2D projection of a motion field onto the image the color components as separate images of the same scene, a plane. This 2D field of velocities is called image flow. new method, based on exploiting color invariance ...