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首页> 外文期刊>The European Journal of Neuroscience >Repetitive transcranial magnetic stimulation reveals a role for the left inferior parietal lobule in matching observed kinematics during imitation
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Repetitive transcranial magnetic stimulation reveals a role for the left inferior parietal lobule in matching observed kinematics during imitation

机译：重复的经颅磁刺激揭示了左下耳廓叶片在模仿期间匹配观察到的运动学中的作用

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摘要

Abstract Apraxia (a disorder of complex movement) suggests that the left inferior parietal lobule (IPL) plays a role in kinematic or spatial aspects of imitation, which may be particularly important for meaningless (i.e. unfamiliar intransitive) actions. Mirror neuron theories indicate that the IPL is part of a frontoparietal system that can support imitation by linking observed and stored actions through visuomotor matching, and have less to say about different subregions of the left IPL, or how different types of action (i.e. meaningful or meaningless) are processed for imitation. We used repetitive transcranial magnetic stimulation (rTMS ) to bridge this gap and better understand the roles of the left supramarginal gyrus (SMG) and left angular gyrus (AG) in imitation. We also examined whether these areas are differentially involved in meaningful and meaningless action imitation. We appliedrTMS over the left SMG, over the left AG or during a norTMS baseline condition, and then asked participants to imitate a confederate's actions whilst the arm and hand movements of both individuals were motiontracked.rTMS over both the left SMG and the left AG reduced the velocity of participants finger movements relative to the actor during imitation of finger gestures, regardless of action meaning. Our results support recent claims in apraxia and confirm a role for the left IPL in kinematic processing during gesture imitation, regardless of action meaning.
机译：摘要Apraxia（复杂运动障碍）表明，左下台叶片（IPL）在模仿的运动或空间方面发挥着作用，这对于毫无意义（即不熟悉的无意义）行动可能尤为重要。镜像神经元理论表明，IPL是通过Visuomotor匹配通过链接观察和存储的操作来支持模仿的前期系统的一部分，并且对左侧IPL的不同子区域或不同类型的动作方式（即有意义或毫无意义的）是为了模仿而加工。我们使用重复的经颅磁刺激（RTMS）来弥合这种间隙，更好地了解左髁上的旋转（SMG）和左角度血管（AG）在模仿中的作用。我们还检查了这些领域是否差异涉及有意义和无意义的行动模仿。我们在左派中申请了左侧的SMG，或者在Nortms基线条件下，然后要求参与者模仿同盟的行为，而两个人的手臂和手动运动是MotionTracked.RTMS在左侧SMG和左臂都减少无论动作意义如何，参与者在模仿手指手势期间相对于演员的手指移动的速度。我们的结果支持最近在盛约申索中的索赔，并在手势模仿时确认左侧IPL在动态处理中的作用，无论行动含义如何。

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