Japanese Psychological Research
Online ISSN : 1468-5884
Print ISSN : 0021-5368
The role of stimulus intensity, color and form in visual stream segregation
HIDEKO OHMURA
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1986 Volume 28 Issue 1 Pages 21-29

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Abstract

The role of stimulus intensity (luminance), color and form on visual stream segregation (VISS) was studied through three experiments, using six undergraduates as subjects. The results were as follows. There were no effects of stimulus intensity on VISS. Korte's “third law” was supported, while his concerning spatial and temporal separation “first law” and “second law” concerning intensity for VISS was not. Neither color nor form had any effects on goodness and proportion of VISS, but color and form determined the quality of perceived motion. Between disparate colors, no intermediaries were found; one changed abruptly to the other while disparate shapes were seen to change gradually, and the type of perceived motion corresponded to that of geometric transformation in stimuli. These results are discussed by a notion of seriation in visual processing.

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