Neural circuits underlying imitation learning of hand actions: An event-related fMRI study
Neural circuits underlying imitation learning of hand actions: An event-related fMRI study
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DOI：
10.1016/s0896-6273(04)00181-3
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发表时间：
2004-04-22
期刊：
影响因子：
16.2
通讯作者：
Rizzolatti, G
中科院分区：
文献类型：
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作者：
Buccino, G;Vogt, S;Rizzolatti, G
模仿学习的神经基础实际上是未知的。在本研究中，我们解决了这个问题，使用事件相关的功能磁共振成像范例。在四个事件中对音乐幼稚的参与者进行了扫描：（1）观察吉他手演奏的吉他和弦，（2）模型观察后的停顿，（3）执行观察到的和弦，以及（4）休息。结果表明，模仿学习的基本回路由顶下小叶、额下回后部和邻近的运动前皮层组成（镜像神经元电路）。这个回路，已知参与动作理解，在观察吉他和弦时开始活跃。在停顿期间，额中回（46区）和参与运动准备的结构（背侧运动前皮层、上级顶叶小叶、近中喙侧区）也变得活跃。根据46区的功能特性，提出了一种基于该区域与镜像神经元系统相互作用的模仿学习模型。
The neural bases of imitation learning are virtually unknown. In the present study, we addressed this issue using an event-related fMRI paradigm. Musically naive participants were scanned during four events: (1) observation of guitar chords played by a guitarist, (2) a pause following model observation, (3) execution of the observed chords, and (4) rest. The results showed that the basic circuit underlying imitation learning consists of the inferior parietal lobule and the posterior part of the inferior frontal gyrus plus the adjacent premotor cortex (mirror neuron circuit). This circuit, known to be involved in action understanding, starts to be active during the observation of the guitar chords. During pause, the middle frontal gyrus (area 46) plus structures involved in motor preparation (dorsal premotor cortex, superior parietal lobule, rostral mesial areas) also become active. Given the functional properties of area 46, a model of imitation learning is proposed based on interactions between this area and the mirror neuron system.