Document Detail

Color from motion: dichoptic activation and a possible role in breaking camouflage.
MedLine Citation:
PMID:  9616467     Owner:  NLM     Status:  MEDLINE    
'Color from motion' describes the perception of a spread of subjective color over achromatic regions seen as moving. The effect can be produced in a display of multiple frames shown in quick succession, each frame consisting of a fixed, random placement of colored dots on a high-luminance white background with color assignments of some dots, but not dot locations, changing from frame to frame. Evidence is presented that the perception of apparent motion and the spread of subjective color can be activated by binocular combination of disjoint signals to each eye. The dichoptic presentation of every odd-numbered frame of the full stimulus sequence presented to one eye and, out of phase, every even-numbered frame to the other eye produces a compelling perception of color from motion equal to that seen with the full sequence presented to each eye alone. This is consistent with the idea that color from motion is regulated in sites at or beyond the convergence of monocular pathways. When the background field in the stimulus display is of low luminance, an amodally complete object, fully colored and matching the dots defining the moving region in hue and saturation, is seen to move behind a partially occluding screen. Observers do not perceive such an object in still view. Hence, color from motion can be used by the visual system to produce amodal completion, which suggests that it may play a role in enhancing the visibility of camouflaged objects.
C M Cicerone; D D Hoffman
Related Documents :
15341157 - Evolution of color variation in dragon lizards: quantitative tests of the role of cryps...
10788647 - Failure to detect changes in color for lines rotating in depth: the effects of grouping...
11038577 - The cloud-ionosphere discharge: a newly observed thunderstorm phenomenon.
238867 - Psychophysical evaluation of toxic effects on sensory systems.
22352507 - Auditory perception of material is fragile while action is strikingly robust.
24737767 - Phase shifts in binaural stimuli provide directional cues for sound localization in the...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Perception     Volume:  26     ISSN:  0301-0066     ISO Abbreviation:  Perception     Publication Date:  1997  
Date Detail:
Created Date:  1998-06-25     Completed Date:  1998-06-25     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0372307     Medline TA:  Perception     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1367-80     Citation Subset:  IM    
Department of Cognitive Sciences, University of California at Irvine 92697, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Color Perception*
Motion Perception*
Optical Illusions*
Vision, Ocular
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Colour in a larger perspective: the rebirth of Gestalt psychology.
Next Document:  Color from motion: separate contributions of chromaticity and luminance.