关于视觉运动后效的另一种观点。

Department of Psychology/Vision Center, Vanderbilt University, Nashville, TN 37240.

Proc Natl Acad Sci U S A. 1992 Oct 1;89(19):9025-8. doi: 10.1073/pnas.89.19.9025.

Prolonged adaptation to motion in a given direction produces distinctly different visual motion aftereffects (MAEs) when viewing static vs. dynamic test displays. The dynamic MAE can be exactly simulated by real motion, whereas the static MAE cannot. In addition, the magnitude of the dynamic MAE depends on the bandwidth of motion directions experienced during adaptation, whereas the static MAE does not. Evidently a stationary pattern does not directly activate the neural mechanisms affected during motion adaptation, whereas a dynamic visual display does. These results imply that the traditional explanation of the MAE needs modification.

在给定方向上长时间适应运动后，当观察静态与动态测试显示时，会产生明显不同的视觉运动后效（MAE）。动态MAE可以通过真实运动精确模拟，而静态MAE则不能。此外，动态MAE的大小取决于适应过程中所经历的运动方向带宽，而静态MAE则不然。显然，静止图案不会直接激活运动适应过程中受影响的神经机制，而动态视觉显示则会。这些结果意味着对MAE的传统解释需要修正。