The effect of extent on the intensity-time relation for the visual discrimination of movement.
- 1 January 1957
- journal article
- research article
- Published by American Psychological Association (APA) in Journal of Comparative and Physiological Psychology
- Vol. 50 (2) , 109-114
- https://doi.org/10.1037/h0041499
Abstract
Using 3 human Ss, the relation between speed and luminance of a small visual stimulus in discrimination of movement was tested. Above a given speed movement could not be discriminated and threshold luminance increased in direct proportion to stimulus speed; below the upper speed threshold "threshold luminance for motion discrimination was constant up to a critical rate, beyond which it increased directly with stimulus speed." Extent of movement increased the absolute energy required for discrimination with exposures below the critical duration. 16 references.Keywords
This publication has 6 references indexed in Scilit:
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- AREA AND THE INTENSITY-TIME RELATION IN THE PERIPHERAL RETINAAmerican Journal of Physiology-Legacy Content, 1935