P-2B-6 両眼立体視における重畳刺激の奥行き定位(2001年度 日本基礎心理学会第20回大会優秀発表賞)

抄録

This study concerned the effects of spatio-temporal configuration of superimposed grating stimuli on the depth attraction/repulsion phenomena. When a sinusoidal grating of ambiguous depth (a "target") was superimposed on another grating of unambiguous depth (an "inducer"), the inducer had either an attractive or repulsive effect on the target's depth perception, depending on the spatial-frequency relationship. In the first experiment depth attraction still occurred but depth repulsion vanished when a target did not temporally overlap with an inducer. The result suggested that different mechanisms contributed the attraction and repulsion. In the second experiment a target of the same height as an inducer was always attracted, regardless of the other parameters. The result suggested that there was a contribution of shape processing.