Seeing or doing?: Influence of visual and motor familiarity in action observation
Seeing or doing?: Influence of visual and motor familiarity in action observation
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DOI：
10.1016/j.cub.2006.07.065
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发表时间：
2006-10-10
期刊：
影响因子：
9.2
通讯作者：
Haggard, Patrick
中科院分区：
文献类型：
--
作者：
Calvo-Merino, Beatriz;Grezes, Julie;Haggard, Patrick
人类的大脑包含专门的回路来观察和理解动作[1-3]。以前的研究没有区分这种“镜像系统”是否使用专门的运动表征或视觉推理和知识的一般过程来理解观察到的动作[4]。我们报告的第一个神经影像学研究，以区分这些替代品。运动对知觉的影响已经在行为上得到证实[5]，但其神经基础尚不清楚。我们使用功能磁共振成像来揭示运动对动作观察的影响的神经基础。我们通过研究专家舞者来控制视觉和知识效果。有些芭蕾舞动作只由一种性别表演。然而，男性和女性舞者一起训练，对所有动作都有相同的视觉熟悉度。男性和女性舞者观看了针对特定性别的男性和女性芭蕾舞动作的视频。我们发现更大的运动前区，顶叶，和小脑活动时，舞者从自己的运动剧目的动作，与异性的动作，他们经常看到，但没有执行。我们的研究结果表明，镜像电路有一个纯粹的运动反应和以上的视觉表示的行动。我们不仅通过视觉识别来理解动作，还通过运动来理解动作。此外，我们确认小脑是动作观察网络的一部分。
The human brain contains specialized circuits for observing and understanding actions [1-3]. Previous studies have not distinguished whether this "mirror system" uses specialized motor representations or general processes of visual inference and knowledge to understand observed actions [4]. We report the first neuroimaging study to distinguish between these alternatives. Purely motoric influences on perception have been shown behaviorally [5], but their neural bases are unknown. We used fMRI to reveal the neural bases of motor influences on action observation. We controlled for visual and knowledge effects by studying expert dancers. Some ballet moves are performed by only one gender. However, male and female dancers train together and have equal visual familiarity with all moves. Male and female dancers viewed videos of gender-specific male and female ballet moves. We found greater premotor, parietal, and cerebellar activity when dancers viewed moves from their own motor repertoire, compared to opposite-gender moves that they frequently saw but did not perform. Our results show that mirror circuits have a purely motor response over and above visual representations of action. We understand actions not only by visual recognition, but also motorically. In addition, we confirm that the cerebellum is part of the action observation network.