Binocular contrast interactions in two-frame motion discrimination
نویسندگان
چکیده
منابع مشابه
Contrast sensitivity of form and motion discrimination during binocular rivalry
Binocular rivalry, which is induced by presenting the two eyes with incompatible stimuli, results in periods where one eye's stimulus is seen and the other stimulus is suppressed. We measured the depth of suppression in two ways, with very different results. First, two similar forms were briefly presented to one eye: the difference in shapes required to discriminate the forms was substantially ...
متن کاملBinocular contrast discrimination needs monocular multiplicative noise
The effects of signal and noise on contrast discrimination are difficult to separate because of a singularity in the signal-detection-theory model of two-alternative forced-choice contrast discrimination (Katkov, Tsodyks, & Sagi, 2006). In this article, we show that it is possible to eliminate the singularity by combining that model with a binocular combination model to fit monocular, dichoptic...
متن کاملBinocular interactions in suprathreshold contrast perception.
Suprathreshold binocular contrast interactions were studied psychophysically. A split-screen CRT display was used to present separate sine-wave gratings to the observer's left and right eyes. The method of constant stimuli and a modified method of adjustment were used to find sets of binocular test patterns that matched a given binocular standard. Test patterns consisted of the simultaneous pre...
متن کاملDirection discrimination thresholds in binocular, monocular, and dichoptic viewing: Motion opponency and contrast gain control.
We studied the binocular organization of motion opponency and its relationship to contrast gain control. Luminance contrast thresholds for discriminating direction of motion were measured for drifting Gabor patterns (target) presented on counterphase flickering Gabor patterns (pedestal). There were four presentation conditions: binocular, monocular, dichoptic, and half-binocular. For the half-b...
متن کاملSpeed discrimination of motion-in-depth using binocular cues
Although it is well known that motion-in-depth can be detected using binocular cues, it is not known whether those cues can be used to judge the speed of an object moving in depth. There are at least two possible binocular cues that could be used by the visual system to calculate three dimensional (3-D) speed: the rate of change of binocular disparity, or a comparison of the speeds of motion in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 2007
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03193938