Department of Neurology and Neurosurgery, McGill University, Montreal, Canada.
Department of Computer Science, McGill University, Montreal, Canada.
J Vis. 2021 Mar 1;21(3):10. doi: 10.1167/jov.21.3.10.
Visual perceptual learning (VPL) is an improvement in visual function following training. Although the practical utility of VPL was once thought to be limited by its specificity to the precise stimuli used during training, more recent work has shown that such specificity can be overcome with appropriate training protocols. In contrast, relatively little is known about the extent to which VPL exhibits motor specificity. Previous studies have yielded mixed results. In this work, we have examined the effector specificity of VPL by training observers on a motion discrimination task that maintains the same visual stimulus (drifting grating) and task structure, but that requires different effectors to indicate the response (saccade vs. button press). We find that, in these conditions, VPL transfers fully between a manual and an oculomotor response. These results are consistent with the idea that VPL entails the learning of a decision rule that can generalize across effectors.
视觉感知学习（VPL）是指经过训练后视觉功能的提高。虽然 VPL 的实际应用曾经被认为受到训练中使用的精确刺激的特异性限制，但最近的研究表明，通过适当的训练方案可以克服这种特异性。相比之下，关于 VPL 表现出多大程度的运动特异性，人们知之甚少。之前的研究结果喜忧参半。在这项工作中，我们通过在一个运动辨别任务中训练观察者来检查 VPL 的效应器特异性，该任务保持相同的视觉刺激（漂移光栅）和任务结构，但需要不同的效应器来指示反应（扫视与按钮按压）。我们发现，在这些条件下，手动和眼动反应之间的 VPL 完全转移。这些结果与 VPL 需要学习可以跨效应器推广的决策规则的观点一致。
