奥行き運動残効における速度勾配の効果

概要

論文の詳細を見る
The effect of velocity gradients of the adapting stimulus to the resultant motion aftereffect in depth (MAE in depth) was examined. The motion vectors in the adapting stimulus all radiated from the origin (expansion). When the local speeds increase linearly towards periphery, the observers perceived the three-dimensional rigid motion. This three-dimensional rigidity perception was not occurred when the local speeds are zero at the periphery and increase towards center or when the local speeds are always the same. The duration and the percept of resultant MAE in depth were measured after adapting to the moving stimulus that have three types of velocity gradients described above. The duration of the MAE in depth was determined by the average speed of the adapting stimulus and had no relation to the percept of the adapting stimulus. A clear percept of three-dimensional rigidity arose in the resultant MAE in depth in all of the adapting stimulus. These results support the idea that looming detectors which selectively respond to the approaching motion have hierarchical structure to compute direction and velocity.
日本基礎心理学会の論文
1994-03-31