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首页> 外文期刊>Neuron >Using a compound gain field to compute a reach plan.
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Using a compound gain field to compute a reach plan.

机译:使用复合增益字段来计算覆盖范围计划。

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摘要

A gain field, the scaling of a tuned neuronal response by a postural signal, may help support neuronal computation. Here, we characterize eye and hand position gain fields in the parietal reach region (PRR). Eye and hand gain fields in individual PRR neurons are similar in magnitude but opposite in sign to one another. This systematic arrangement produces a compound gain field that is proportional to the distance between gaze location and initial hand position. As a result, the visual response to a target for an upcoming reach is scaled by the initial gaze-to-hand distance. Such a scaling is similar to what would be predicted in a neural network that mediates between eye- and hand-centered representations of target location. This systematic arrangement supports a role of PRR in visually guided reaching and provides strong evidence that gain fields are used for neural computations.
机译:增益场,即姿势信号对调整后的神经元反应的缩放,可能有助于支持神经元计算。在这里,我们描述了顶伸区域(PRR)中的眼睛和手部位置增益场。单个PRR神经元中的眼睛和手部增益场大小相似,但符号彼此相反。这种系统的安排产生了一个复合增益场,该场与注视位置和初始指针位置之间的距离成比例。结果,通过初始注视到手的距离来缩放对即将到达的目标的视觉响应。这样的缩放类似于在目标位置的以眼睛为中心和以手为中心的表示之间进行介导的神经网络中的预测。这种系统的安排支持PRR在视觉引导的到达中的作用,并提供有力的证据表明增益场用于神经计算。

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