Evidences of perceptual changes that accompany motor activity have been limited primarily to audition and somatosensation. Here we asked whether motor learning results in changes to visual motion perception. We designed a reaching task in which participants were trained to make movements along several directions, while the visual feedback was provided by an intrinsically ambiguous moving stimulus directly tied to hand motion. We find that training improves coherent motion perception and that changes in movement are correlated with perceptual changes. No perceptual changes are observed in passive training even when observers were provided with an explicit strategy to facilitate single motion perception. A Bayesian model suggests that movement training promotes the fine-tuning of the internal representation of stimulus geometry. These results emphasize the role of sensorimotor interaction in determining the persistent properties in space and time that define a percept.

中文翻译：

---

自力刺激改善了后续的视觉运动整合。

伴随运动活动的知觉变化的证据主要限于听觉和躯体感觉。在这里，我们询问运动学习是否会导致视觉运动感知的变化。我们设计了一项到达任务，其中训练参与者沿多个方向进行运动，而视觉反馈由与手部运动直接相关的本质上模棱两可的运动刺激提供。我们发现训练可以改善连贯的运动知觉，并且运动的变化与知觉变化相关。即使为观察者提供了促进单运动感知的明确策略，在被动训练中也没有观察到感知变化。贝叶斯模型表明，运动训练促进了刺激几何学内部表示的微调。