Accession Number : ADA310102

Title :   Threshold and Suprathreshold Lateral Spatial Interactions in Brightness, Contrast and Stereoscopic Depth Perception.

Descriptive Note : Final rept. 1 Sep 94-29 Feb 96,

Corporate Author : NORTH DAKOTA STATE UNIV FARGO DEPT OF PSYCHOLOGY

Personal Author(s) : McCourt, Mark E. ; Blakeslee, Barbara

PDF Url : ADA310102

Report Date : 30 APR 1996

Pagination or Media Count : 114

Abstract : We measured the effects of stereoscopic and pictorial depth separation on a variety of phenomena involving lateral interactions in the luminance and contrast domains (e.g., grating induction, perceptual transparency, simulataneous brightness contrast and contrast-contrast). In addition, the early visual mechanisms underlying the formation of illusory contours were assessed by measuring the effects of illusory contours on the visibility of spatiotemporally limited targets (i.e., Gabor patches); and by measuring the effects of filtered noise textures on the strength of illusory contours. Finally, the temporal characteristics of the mechanisms underlying grating induction and simultaneous brightness contrast were measured.

Descriptors :   *VISION, *VISUAL AIDS, *STEREOSCOPIC DISPLAY SYSTEMS, CONTRAST, THRESHOLD EFFECTS, TARGETS, DEPTH, BRIGHTNESS, GRATINGS(SPECTRA), VISIBILITY, SEPARATION, VISUAL PERCEPTION, SYNCHRONISM, FILTERS, NOISE, TEXTURE, THRESHOLDS(PHYSIOLOGY), INDUCTION SYSTEMS, LUMINANCE, TRANSPARENCIES, SPACE PERCEPTION, ILLUSIONS.

Subject Categories : Anatomy and Physiology
      Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE