Wright R D, Day R W
Department of Psychology, Simon Fraser University, Burnaby, British Columbia, Canada.
Perception. 1993;22(7):767-9. doi: 10.1068/p220767.
Two types of spiral-motion aftereffects were elicited by a single pattern: subjects reported seeing the pattern expand in the two-dimensional viewing plane or bulge toward them in three-dimensional space. Under binocular-viewing conditions reports of two-dimensional translations predominated. But when depth information was restricted under monocular-viewing conditions, reports of three-dimensional translations were more frequent. It appears that the bistability of these aftereffects can be influenced by the degree of depth information available about a stimulus pattern.
受试者报告称看到图案在二维观察平面中扩张，或者在三维空间中向他们凸起。在双眼观察条件下，二维平移的报告占主导。但在单眼观察条件下，当深度信息受到限制时，三维平移的报告更为频繁。看来这些后效的双稳态会受到关于刺激图案的可用深度信息程度的影响。
