Related Experiment Video
Updated: Oct 7, 2026

Creating Objects and Object Categories for Studying Perception and Perceptual Learning
Published on: November 2, 2012
The dissociation of color from form and function knowledge
1Department of Neurology, Università Cattolica, Largo A. Gemelli 8, 00168, Rome, Italy.
Abstract:
We report on two brain-damaged subjects who exhibit the uncommon pattern of loss of object color knowledge, but spared color perception and naming. The subject P.C.O., as in previously reported patients, is also impaired in processing other perceptual and functional properties of objects. I.O.C., in contrast, is the first subject on record to have impaired object color knowledge, but spared knowledge of object form, size and function. This pattern of performance is consistent with the view that semantic information about color and other perceptual properties of objects is grounded in modality-specific systems. Lesion analysis suggests that such grounding requires the integrity of the mesial temporal regions of the left hemisphere.
Related Concept Videos
Structuralism
Titchener's approach to structuralism was unique. He employed introspection, a method...
Color Vision
Gestalt Principles of Perception
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.
Dissociative Disorders
Dissociative Fugue
A hallmark feature of dissociative disorders is the dissociative fugue...
Symbolic Understanding I: Pictorial Competence
