Does visual aftereffect of motion add algebraically to objective motion of the test stimulus?
- 1 November 1963
- journal article
- research article
- Published by American Psychological Association (APA) in Journal of Experimental Psychology
- Vol. 66 (5) , 500-505
- https://doi.org/10.1037/h0047462
Abstract
Carlson (1962) found that additivity occurs only when eliciting motions and test motions are in the same direction. This result seemed to conflict with Gibson''s general theory of adaptation. In the present study 6 Ss [subjects] viewed a moving stimulus which was alternated with an electronically produced test stimulus. Comparisons of the velocity of the test stimulus with a previously seen standard were made. The results of this experiment were contrary to Carlson''s results and upheld Gibson''s theory. In a 2nd experiment, aftereffect measurements were made in a monkey. The data obtained from this animal also clearly supported Gibson''s theory. Possible reasons for Carlson''s failure to demonstrate algebraic additivity were discussed. It was concluded that Carlson''s data provide no serious refutation of Gibson''s theory.Keywords
This publication has 1 reference indexed in Scilit:
- Adaptation in the perception of visual velocity.Journal of Experimental Psychology, 1962