Laboratoire Psychologie de la Perception Institut Neurosciences Cognition Université Paris Descartes Centre National de Recherche Scientifique
Home
Research
vision Vision
action Action
speech Speech
avoc AVoC
support support staff
People
Former Staff
Teaching
Publications
Ethics
Events
Practical

Calendar
Opportunities
Internships
Contracts
Platforms
Links

Baby Lab

Intranet
The contribution of color to depth perceived from motion parallax.

Perceived depth was measured in a colored stimulus while stimulus movement related to head displacement simulated a depth of 1 cm. Velocity judgments were also made for similar stimuli moving at the same average speed without head movement. Exp 1 tested effects of luminance contrast on motion parallax. Four Ss with normal color vision and visual acuity judged the depth in parallax display of 4 horizontal bands of heterochromatic wave grating. Exp 2 studied the effect of reduced depth for low contrast stimuli related to the slowing of perceived speed at these contrasts. Ss judged the speed of the upper bands in free, monocular viewing. An impression of depth from parallax was found for equiluminous color gratings. Perceived depth and speed decreased as a function of luminous contrast much more abruptly for the chromatic stimulus than for a monochromatic stimulus. (PsycINFO Database Record (c) 2007 APA, all rights reserved)



PDF Link