CHICK'S AVOIDANCE OF VISUAL PITFALLS:A REEXAMINATION OF FINDINGS BY THE VISUAL CLIFF TECHNIQUE
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概要
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Chick's avoidance of visual pitfalls was observed in a freely explorable open field situation. Fifty-one naive male chicks from 26 to 36 hours of age were used. After habituation a group of three animals was assigned to each of seventeen conditions and observed for five minutes. Conditions were classified into three; homogeneous non-pitfall, heterogeneous non-pitfall and pitfall situations. Animals successfully avoided pitfalls when motion parallax existed between two surfaces. Density difference was shown to be ineffective as avoidance cue when isolated from motion cue. Animals locomoted vivaciously and speedily, covering a long distance in the non-pitfall and the pitfall situations. without motion parallax, while in the pitfall situation with motion cue their locomotion was reduced and they stayed at a position for a long time. Such findings reconfirmed the previous ones obtained by Gibson, Walk and others.
- 公益社団法人 日本心理学会の論文
著者
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Hara Masatoshi
Department Of Biological Information Graduate School Of Bioscience And Biotechnology Tokyo Institute
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Tsuji Keiichiro
Department Of Psychology Nagoya University
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HARA MASATOSHI
Department of Psychology, Nagoya University
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HAYASHIBE KEIKICHI
Department of Psychology, Nagoya University
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