Motion detection on flashed, stationary pedestal gratings: Evidence for an opponent-motion mechanism
نویسندگان
چکیده
منابع مشابه
Motion detection on flashed, stationary pedestal gratings: Evidence for an opponent-motion mechanism
Contrast thresholds were measured for discriminating left vs right motion of a vertical, 1 c/deg luminance grating lasting for one cycle of motion. This test was presented on a 1 c/deg stationary grating (pedestal) of twice-threshold, flashed for the duration of the test motion. Lu and Sperling [(1995). Vision Research, 35, 2697-2722] argue that the visual system detects the underlying, first-o...
متن کامل“Motion detection on flashed, stationary pedestal gratings: evidence for an opponent-motion mechanism” [Vision Research, 38 (1998) 795–812]
Fig. 3. Contrast thresholds for direction discrimination as a function of pedestal contrast (measured as in Fig. 1) at 7.43 and 15 Hz. The moving test was presented in 0 or 180° spatial phase with the pedestal (specified at middle of motion). The dashed line in each panel shows the mean threshold of the observers measured without the pedestal. Pedestals of 2–3% contrast produce the greatest fac...
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ژورنال
عنوان ژورنال: Vision Research
سال: 1998
ISSN: 0042-6989
DOI: 10.1016/s0042-6989(97)00225-3