Nonvisual motor training influences biological motion perception
Nonvisual motor training influences biological motion perception
复制标题
DOI：
10.1016/j.cub.2005.10.071
复制
发表时间：
2006-01-10
期刊：
影响因子：
9.2
通讯作者：
Giese, MA
中科院分区：
文献类型：
--
作者：
Casile, A;Giese, MA
实验证据表明感知与行动执行之间存在联系[1-12]。特别是，有人提出运动程序可能直接影响视觉动作感知[13]。根据这一假设，即使在没有视觉学习的情况下，获得新的运动行为也应该提高他们的视觉识别能力。我们通过使用一种新的实验范例来测试这一预测，该实验范例在获取新的运动模式期间将视觉和运动学习分离。在非视觉运动训练之前和之后评估点光刺激对步态模式的视觉识别。在这次训练中，受试者被蒙上眼睛，并学习一种仅基于口头和触觉反馈的新颖的协调上半身运动。学习到的动作与视觉测试模式之一相匹配。尽管训练期间没有视觉刺激，我们观察到所学动作的视觉识别性能有选择性的提高。此外，训练后的视觉识别性能与所学习的运动模式的执行准确性密切相关。这些结果首次证明，运动学习对视觉动作识别具有直接且高度选择性的影响，而不是由视觉学习介导的。
Experimental evidence suggests a link between perception and the execution of actions [1-12]. In particular, it has been proposed that motor programs might directly influence visual action perception [13]. According to this hypothesis, the acquisition of novel motor behaviors should improve their visual recognition, even in the absence of visual learning. We tested this prediction by using a new experimental paradigm that dissociates visual and motor learning during the acquisition of novel motor patterns. The visual recognition of gait patterns from point-light stimuli was assessed before and after nonvisual motor training. During this training, subjects were blindfolded and learned a novel coordinated upper-body movement based only on verbal and haptic feedback. The learned movement matched one of the visual test patterns. Despite the absence of visual stimulation during training, we observed a selective improvement of the visual recognition performance for the learned movement. Furthermore, visual recognition performance after training correlated strongly with the accuracy of the execution of the learned motor pattern. These results prove, for the first time, that motor learning has a direct and highly selective influence on visual action recognition that is not mediated by visual learning.