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首页> 外文期刊>Progress in brain research >Internal forward models in the cerebellum: fMRI study on grip force and load force coupling.
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Internal forward models in the cerebellum: fMRI study on grip force and load force coupling.

机译：小脑内部向前模型：功能性磁共振成像研究抓力和负荷力的耦合。

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Internal models are neural mechanisms that can mimic the input-output or output-input properties of the motor apparatus and external objects. Forward internal models predict sensory consequences from efference copies of motor commands. There is growing acceptance of the idea that forward models are important in sensorimotor integration as well as in higher cognitive function, but their anatomical loci and neural mechanisms are still largely unknown. Some of the most convincing evidence that the central nervous system (CNS) makes use of forward models in sensory motor control comes from studies on grip force-load force coupling. We first present a brief review of recent computational and behavioral studies that provide decisive evidence for the utilization of forward models in grip force-load force coupling tasks. Then, we used functional magnetic resonance imaging (fMRI) to measure the brain activity related to this coupling and demonstrate that the cerebellum is the most likely site for forward modelsto be stored.
机译：内部模型是可以模仿电机设备和外部对象的输入输出或输出输入属性的神经机制。前向内部模型可预测电机命令的有效复制所带来的感觉后果。正向模型在感觉运动整合以及更高的认知功能中很重要，这一观点已被越来越多的人接受，但是它们的解剖学位点和神经机制仍然非常未知。一些最令人信服的证据表明，中枢神经系统（CNS）在感觉运动控制中使用了正向模型，来自对抓地力-负载力耦合的研究。我们首先简要介绍一下最近的计算和行为研究，这些研究为在抓地力-负载力耦合任务中使用正向模型提供了决定性的证据。然后，我们使用功能磁共振成像（fMRI）来测量与此耦合有关的大脑活动，并证明小脑是最可能存储正向模型的部位。

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