Asymmetry of the perception of approaching or receding objects defined by moving cast shadows(Summary of Awarded Presentation at the 25th Annual Meeting)

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概要

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• It has been proposed that objects which appear to be expanding, and represent approaching objects, are easier to detect than objects which appear to be contracting (Takeuchi, 1997; Shirai & Yamaguchi, 2004). To investigate this asymmetry in a visual search task we examined the detection of approaching and receding objects which were defined by moving cast shadows. The results showed that an "approaching" target among "receding" distractors was detected faster and more accurately than a "receding" target among "approaching" distractors (Experiment 1). In addition, this asymmetry did not occur if the luminance of the shadows was lighter than the background (Experiments 2 and 3. These findings suggest that the asymmetry of the perception of motion-in-depth could be caused by the depth information of cast shadows.

• 日本基礎心理学会の論文
• 2007-03-31

著者

• IMURA Tomoko

  Kwansei Gakuin University

• TOMONAGA Masaki

  Primate Research Institute, Kyoto University

• Shirai Nobu

  Tokyo Metropolitan University:(present Office)department Of Psychology Niigata University

• Shirai Nobu

  Japan Society For The Promotion Of Science:chuo University

• Imura Tomoko

  Kwansei Gakuin University:japan Society For The Promotion Of Science

• Yamaguchi Masami

  Chuo University:japan Science And Technology Agency

• Tomonaga Masaki

  Primate Research Institute Kyoto University

• YAGI Akihiro

  Kwansei Gakuin University

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