Carney T
Vision Res. 1982;22(10):1273-5. doi: 10.1016/0042-6989(82)90139-0.
In the tilt aftereffect a grating or bar is perceived as being slightly rotated from its veridical orientation if it is preceded by a similar adaptation stimulus with a slightly different orientation. It has been reported that the tilt aftereffect is not direction specific. That is, the magnitude of the misperception was not affected by whether the adaptation and test stimuli were moving in the same or the opposite directions. However, when we required subjects to fixate on a stationary spot during adaptation to a moving grating, the tilt aftereffect was strongest when both stimuli moved in the same direction. Moreover, the tilt aftereffect was not direction specific without such fixation. These results are consistent with the distribution shift model in which the perceived orientation reflects the distribution of orientation selective units, some of which are also direction selective.
在倾斜后效中，如果一个光栅或线条之前有一个方向略有不同的类似适应刺激，那么它会被感知为从其真实方向略有旋转。据报道，倾斜后效不是方向特异性的。也就是说，错觉的程度不受适应刺激和测试刺激是同向还是反向移动的影响。然而，当我们要求受试者在适应移动光栅时注视一个固定点时，当两个刺激同向移动时，倾斜后效最强。此外，没有这种注视时，倾斜后效不是方向特异性的。这些结果与分布转移模型一致，在该模型中，感知到的方向反映了方向选择性单元的分布，其中一些单元也是方向选择性的。
