Maiya K
Shinrigaku Kenkyu. 1983 Feb;53(6):323-9.
An attempt was made to examine whether or not the simultaneous Delboeuf illusion and the successive one were based on the same perceptual process. By the method of the fixed set, the subject's inner process (set) during the occurrence of the illusions was investigated in Experiment I. The results indicated that his set toward the Delboeuf illusion figure was not changed when only the inducing circle was presented first, but that his set was changed at the moment the inducing circle disappeared and the two circles of identical size were presented. Experiment II examined his perception when there was a time delay between the presentations of the inducing circle of the Delboeuf illusion figure and the other two circles. In that situation, the simultaneous Delboeuf illusion and the successive one should occur successively. The results of Experiment III suggested that the transitional change from the simultaneous Delboeuf illusion to the successive one, which had been observed in the previous study, was due to a change in the judgement of the subject who experienced these two different phenomena successively.
研究人员试图探究同时性德勃夫错觉和相继性德勃夫错觉是否基于相同的感知过程。在实验一中，通过固定组方法，研究了错觉出现过程中受试者的内部过程（定势）。结果表明，当先仅呈现诱导圆时，受试者对德勃夫错觉图形的定势未发生变化，但当诱导圆消失且呈现两个大小相同的圆时，其定势发生了变化。实验二考察了在德勃夫错觉图形的诱导圆与另外两个圆的呈现之间存在时间延迟时受试者的感知情况。在这种情况下，同时性德勃夫错觉和相继性德勃夫错觉应相继出现。实验三的结果表明，先前研究中观察到的从同时性德勃夫错觉到相继性德勃夫错觉的过渡变化，是由于相继经历这两种不同现象的受试者的判断发生了变化。
