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ISSN : 1226-9654

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Vol.30 No.4

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Apparent motion induced by illusory kinetic occlusion of an object blinking in place

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2018, v.30 no.4, pp.391-400
https://doi.org/10.22172/cogbio.2018.30.4.005
Yejin Lee (Department of Psychology, Ewha Womans University)
Sung-Ho Kim (Department of Psychology, Ewha Womans University)
Lee, Y., & Kim, S. (2018). Apparent motion induced by illusory kinetic occlusion of an object blinking in place. The Korean Journal of Cognitive and Biological Psychology, 30(4), 391-400, https://doi.org/10.22172/cogbio.2018.30.4.005

Abstract

The current study examined whether a single object repeatedly flashing on and off in place can give rise to a percept of apparent motion when it is presented adjacent to a large occluder behind which an amodal representation can be formed. In Experiment 1, we manipulated the possibility of kinetic occlusion by placing a blinking object behind or in front of a large occluder in a stereoscopic 3D display. The results of Experiment 1 revealed that apparent motion rating was higher when a blinking object was presented behind the occluder than when it was in front. In order to figure out whether apparent motion found in Experiment 1 was actually mediated by kinetic occlusion, an indirect index potentially related to apparent motion was measured using a new experimental task: Participants observed a display involving either a gradual or sudden change of an object in size and reported whether this change appeared gradual or sudden. The results of Experiment 2 revealed that the proportion of the gradual change response was higher when a blinking object was presented behind the occluder than when it was in front. This study suggests that even a single object flashing on and off in place can generate apparent motion when its coming into and going out of existence is perceived to come into and go out of sight while continuing to exist behind an occluder.

keywords
apparent motion, correspondence problem, amodal completion, kinetic occlusion
Submission Date
2018-08-29
Revised Date
2018-10-28
Accepted Date
2018-10-29

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