Figural Aftereffects

Editorial: Studies on optical illusions in Japan1

“…Moreover, he reported that the maximal underestimation of the outer circle always occurred when the diameter ratio was 3:2, and that the magnitude of the illusion in the two circles increased proportionally to the absolute size of the circles. Morinaga's (1935a) study of the Delboeuf illusion was highly influential in Japanese research on figural aftereffects during the 1950s (Oyama, 1978; Sagara & Oyama, 1957).…”

Pioneering studies in the 1930s on perception: An historical background of experimental psychology in Japan1

“…Morinaga's (1935) study of the Delboeuf illusion greatly influenced Japanese studies on figural after‐effects in the 1950s and led them to success (Oyama, 1978; Sagara & Oyama, 1957). An example of influence was shown by the fact that circles were frequently used as stimulus figures in Japanese studies of figural after‐effects, whereas rectangular figures were more popular in the original study of Köhler and Wallach (1944).…”

Novel Architectures for Image Processing Based on Computer Simulation and Psychophysical Studies of Human Visual Cortex.

“…A series of models have been proposed ( see Oyama, 1978 ) to account for the vast number of observations on figural aftereffects, many of which deal with the interaction or influence of curved contours. Both the models and descriptions of the patterns used as stimuli lack a formal and generalizable descriptive tool for the most salient property of the stimuli used, namely, their curvature.…”

“…Although figural aftereffects have been reported to attain a maximum up to 160 msec after the presentation of an I object (Oyama, 1978), it is largely in the domain of contingent aftereffects that longer intervals have been reported. Favreau (1976) tested the color-contingent motion aftereffect both immediately and 7-min after adaptation.…”