Casile Antonino, Giese Martin A
Laboratory for Action Representation and Learning, Department of Cognitive Neurology, Hertie Institute for Clinical Brain Research, University Clinic Tübingen, Schaffhausenstr. 113, D-72072 Tübingen, Germany.
Curr Biol. 2006 Jan 10;16(1):69-74. doi: 10.1016/j.cub.2005.10.071.
Experimental evidence suggests a link between perception and the execution of actions . In particular, it has been proposed that motor programs might directly influence visual action perception . 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.
实验证据表明感知与动作执行之间存在联系。特别是，有人提出运动程序可能直接影响视觉动作感知。根据这一假设，即使在没有视觉学习的情况下，新运动行为的习得也应该会提高对它们的视觉识别能力。我们通过使用一种新的实验范式来检验这一预测，该范式在新运动模式的习得过程中分离了视觉学习和运动学习。在非视觉运动训练前后，评估了从点光刺激中对步态模式的视觉识别。在训练过程中，受试者被蒙上眼睛，仅根据言语和触觉反馈学习一种新的协调上半身运动。所学运动与其中一种视觉测试模式相匹配。尽管训练期间没有视觉刺激，但我们观察到对所学运动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运动模式执行的准确性密切相关。这些结果首次证明，运动学习对视觉动作识别有直接且高度选择性的影响，且这种影响不是由视觉学习介导的。
