- 著者
-
齊藤 俊樹
大谷 昌也
金城 光
- 出版者
- 日本認知科学会
- 雑誌
- 認知科学 (ISSN:13417924)
- 巻号頁・発行日
- vol.22, no.3, pp.463-472, 2015-09-01 (Released:2016-03-01)
- 参考文献数
- 12
When we are shown pairs of human faces and instructed to decide which face is morepreferred, our gaze is gradually biased toward the face that we eventually choose. Shi-mojo, Simion, Shimojo, and Scheier (2003) coined this effect as the gaze cascade effect.In this study, we investigated whether the gaze bias could be observed in various judg-ments other than the preference judgment. In Experiment 1, we showed participants ahuman face and asked them to memorize it. Then we showed them another human faceand asked to do two kinds of judgments: the preference judgment where they had tochoose which face they liked more and the dislike judgment where they had to choosewhich face they disliked more. We found the gaze bias for memorized stimuli in bothjudgments. In Experiment 2, we showed other participants two human faces and in-structed to select one depending on each specific criterion for five different judgmentsincluding the preference judgment. The gaze bias was observed in all judgments, most robustly in the similar judgment where participants instructed to decide which face wasmore similar to themselves. Contrary to findings by Shimojo et al. (2003), our resultssuggest that the gaze cascade effect might be involved in the process of visual decision,not limited in preferential formation.