G-10 サルも絵画的手掛かりから平面の傾きを知覚する

抄録

In order to confirm that monkeys perceive surface orientation from pictorial cues of depth such as texture gradient in the same way as do humans, a monkey was trained to cross-match the orientation of a surface defined by the texture gradient and that of a surface defined by the disparity gradient. A transfer of learning was seen from the previous learning with 4 orientations to the new learning with another 4 orientations, suggesting that the monkey perceived surface orientation from the texture gradient.