陰影のハイライトの位置と刺激の大きさが奥行き知覚に及ぼす効果

概要

論文の詳細を見る
We performed two experiments to examine how the apparent depth of a shaded circle on a plane was affected by the distance of a highlight in the shading from the center of the circle and the size of the circle. Fifteen undergraduates were asked to rate the concentrically shaded circle according to the apparent depth using the Magnitude Estimation method. Experiment 1 showed that the rating was highest when the highlight was located at half of the diameter from the center of the circle and lowest when the highlight was on the edge or in the center of the circle. Experiment 2 reproduced the finding in Experiment 1 irrespective of the size of the circle, showing that there was no difference in the rating due to the size of the circle. The results were explained by Ramachandran's "assumption of light from above," which ascribes "depth perception from shading" to our experiences.
熊本大学の論文
2004-03-20