Accession Number : ADA320373

Title :   Time Course and Stimulus Specificity of Interocular Suppression.

Descriptive Note : Doctoral thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s) : Baldwin, J. B.

PDF Url : ADA320373

Report Date : 09 JAN 1997

Pagination or Media Count : 139

Abstract : Binocular rivalry (BR) suppression has been shown to selectively suppress the opponent color system over the luminance system, and to selectively suppress short wavelengths over medium and long wavelengths (Smith, et al., 1982). Flash suppression (FS), a technique designed after Wolfe (1983) by 001 and Loop (1994) creates 'instantaneous' rivalry suppression by suddenly introducing a grating to one. eye while viewing a dichoptic, orthogonal grating with the other eye. Unlike BR, Ooi and Loop found that in FS, blue color was suppressed least and the luminance system was suppressed most. Experiment 1 of this dissertation repeated the experiment of Ooi and Loop by measuring suppression of blue (439nm), red (613nm), and luminance (540nm/540nm background) probes presented to the right eye at 50 msec after flashing an orthogonal 2.6 cpd, grating to the left eye. The same probes were also presented at 300 and 500 msec after flashing the left grating. At 500 msec after suppression onset, the FS patterns were similar to those previously reported for BR.

Descriptors :   *VISUAL PERCEPTION, THESES, COLORS, SUPPRESSION.

Subject Categories : Medicine and Medical Research
      Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE