Common coding and dynamic interactions between observed, imagined, and experienced motor and somatosensory activity.
Common coding and dynamic interactions between observed, imagined, and experienced motor and somatosensory activity.
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DOI：
10.1016/j.neuropsychologia.2015.04.005
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发表时间：
2015-12
期刊：
影响因子：
2.6
通讯作者：
Ramachandran VS
中科院分区：
文献类型：
--
作者：
Case LK;Pineda J;Ramachandran VS
运动想象和知觉-通常被认为是运动模拟的形式-与运动产生共享重叠的神经表征。虽然许多研究都集中在这种“共同编码”的程度，但很少有人关注这些重叠的表示如何相互作用。想象的、观察到的或产生的行为如何相互影响，我们如何保持对自己的感知和行为的控制？在这篇评论的第一部分中，我们描述了电机生产和电机模拟之间的相互作用，并探讨了平衡这些过程的明显的调节机制。接下来，我们考虑躯体感觉系统。许多研究现在支持一个“感觉镜像系统”，该系统由传入感觉或替代感觉激活的神经表征组成。在这篇评论的第二部分中，我们总结了共享的代表性的感觉和感觉模拟（包括图像和观察到的感觉）的证据，并建议类似的相互作用和调节的模拟发生在躯体感觉域的运动域。我们认为，运动和体感模拟都是灵活调节的，以支持与我们的感觉运动经验和目标一致的模拟，并抑制或分离那些不一致的影响。这些调节机制经常被脑损伤的病例所揭示，但也可以用于促进感觉运动康复。
Motor imagery and perception- considered generally as forms of motor simulation- share overlapping neural representations with motor production. While much research has focused on the extent of this “common coding,” less attention has been paid to how these overlapping representations interact. How do imagined, observed, or produced actions influence one another, and how do we maintain control over our perception and behavior? In the first part of this review we describe interactions between motor production and motor simulation, and explore apparent regulatory mechanisms that balance these processes. Next, we consider the somatosensory system. Numerous studies now support a “sensory mirror system” comprised of neural representations activated by either afferent sensation or vicarious sensation. In the second part of this review we summarize evidence for shared representations of sensation and sensory simulation (including imagery and observed sensation), and suggest that similar interactions and regulation of simulation occur in the somatosensory domain as in the motor domain. We suggest that both motor and somatosensory simulations are flexibly regulated to support simulations congruent with our sensorimotor experience and goals and suppress or separate the influence of those that are not. These regulatory mechanisms are frequently revealed by cases of brain injury but can also be employed to facilitate sensorimotor rehabilitation.