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Titolo:
PERCEIVING AFFORDANCES FOR SWITCHING 2 AC TIONS, STEPPING-OVER AND PASSING-UNDER
Autore:
MISHIMA H;
Indirizzi:
WASEDA UNIV,SCH HUMAN SCI,DEPT BASIC HUMAN SCI,MIKAJIMA TOKOROZAWA 359 JAPAN
Titolo Testata:
Shinrigaku Kenkyu
fascicolo: 6, volume: 64, anno: 1994,
pagine: 469 - 475
SICI:
0021-5236(1994)64:6<469:PAFS2A>2.0.ZU;2-U
Fonte:
ISI
Lingua:
JPN
Soggetto:
SCALED INFORMATION; VISUAL GUIDANCE;
Keywords:
AFFORDANCES; ACTION; PERCEPTUAL BOUNDARY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social Sciences Citation Index
Citazioni:
16
Recensione:
Indirizzi per estratti:
Citazione:
H. Mishima, "PERCEIVING AFFORDANCES FOR SWITCHING 2 AC TIONS, STEPPING-OVER AND PASSING-UNDER", Shinrigaku Kenkyu, 64(6), 1994, pp. 469-475

Abstract

J. J. Gibson (1979/1986) proposed that animals perceive 'affordances', which are the functional utilities based on the properties of both the animals and the environment. If this is the case, animals should make judgements about what to do referring to the capability of their own action system. In this study, I examined a perceptual boundary between ''stepping-over'' and ''passing-under'' for two groups -the tall group and the short group. Subjects were individually requested to judgewhether they would ''stepover'' or ''passunder'' a bar presented in front of them which was varied in height. I found that the mean bar-height to leg-length (B/L) ratio at the perceptual action-switching-pointis invariant, or 1.07, for each group. This result suggests that animals perceive affordances in controlling action, which means that the environment for animals is structured as to various levels of action.

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Documento generato il 25/09/20 alle ore 13:19:47