›› 1964, Vol. 8 ›› Issue (04): 3-13.
CHING CHI-CHENG, PENG JUI-HSIANG, LIN CHUNG-HSIEN, FANG YUN-CHIU
S sits on a tilting chair which can be turned laterally from normal position (0°) to an upside-down position (180°) and makes distance judgments for lengths of 40, 80, and 120 metres on two ground tracks arranged in a V shape, with a standard stimulus on one track and a comparison, presented successively, on the other. Distance judgment is most accurate when S sits in the normal position; errors increase as body posture deviates from normal. A strong tendency is shown in the tilted postures to underestimate distance and this is maximum in the upside-down posture. This experiment suggests that normal body posture acts as a basis for reference in the perception of the outer world.
CHING CHI-CHENG, PENG JUI-HSIANG, LIN CHUNG-HSIEN, FANG YUN-CHIU. DISTANCE PERCEPTION DURING POSTURAL CHANGES[J]. , 1964, 8(04): 3-13.
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