Beets I A M, 't Hart B M, Rösler F, Henriques D Y P, Einhäuser W, Fiehler K
Experimental and Biological Psychology, Philipps-University Marburg, Germany.
Vision Res. 2010 Dec;50(24):2633-41. doi: 10.1016/j.visres.2010.10.004. Epub 2010 Oct 8.
Perception self-evidently affects action, but under which conditions does action in turn influence perception? To answer this question we ask observers to view an ambiguous stimulus that is alternatingly perceived as rotating clockwise or counterclockwise. When observers report the perceived direction by rotating a manipulandum, opposing directions between report and percept ('incongruent') destabilize the percept, whereas equal directions ('congruent') stabilize it. In contrast, when observers report their percept by key presses while performing a predefined movement, we find no effect of congruency. Consequently, our findings suggest that only percept-dependent action directly influences perceptual experience.
感知显然会影响行动，但在哪些条件下行动会反过来影响感知呢？为了回答这个问题，我们让观察者观看一个模棱两可的刺激物，这个刺激物会交替地被感知为顺时针或逆时针旋转。当观察者通过旋转一个操作手柄来报告所感知到的方向时，报告与感知之间的相反方向（“不一致”）会使感知不稳定，而相同方向（“一致”）则会使其稳定。相比之下，当观察者在执行预定义动作时通过按键来报告他们的感知时，我们没有发现一致性的影响。因此，我们的研究结果表明，只有依赖于感知的行动才会直接影响感知体验。
