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首页> 外文期刊>Behavioural Brain Research: An International Journal >Tongue protrusions modify the syntax of skilled reaching for food by the mouse: Evidence for flexibility in action selection and shared hand/mouth central modulation of action
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Tongue protrusions modify the syntax of skilled reaching for food by the mouse: Evidence for flexibility in action selection and shared hand/mouth central modulation of action

机译：舌突起通过鼠标修改熟练熟练的术语的语法：动作选择和共用手/嘴的灵活性的证据

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摘要

Skilled reaching for food by the laboratory mouse has the appearance of an action pattern with a distinctive syntax in which ten submovements occur in an orderly sequence. A mouse locates the food by Sniffing, Lifts, Aims, Advances, and Shapes the hand to Pronate it over a food target that it Grasps, Retracts, and Withdraws to Release to its mouth for eating. The structure of the individual actions in the chain are useful for the study of the mouse motor system and contribute to the use of the mouse as a model of human neurological conditions. The present study describes tongue protrusions that modify the syntax of reaching by occurring at the point of the reaching action at which the hand is at the Aim position. Tongue protrusions were not related to reaching success and were not influenced by training. Tongue protrusions were more likely to occur in the presence of a food target than with reaches made when food was absent. There were vast individual differences; some mice always make tongue protrusions while other mice never make tongue protrusions. That the syntax of reaching can be altered by the insertion of a surrogate (co-occurring) movement adds to a growing body of evidence that skilled reaching is assembled from a number of relatively independent actions, each with its own sensorimotor control that are subject to central modulation. That tongue and hand reaching movements can co-occur suggests a privileged relation between neural mechanisms that control movements of the tongue and hand.
机译：通过实验室鼠标达到食物的熟练具有动作模式的外观，具有独特的语法，其中十个子系统是有序的序列发生的。鼠标通过嗅探，升降机，目标，进步来定位食物，并将手形状呈现在掌握，收缩和退出的食物目标上，以释放到其嘴以进行进食。链中各个动作的结构对于小鼠电机系统的研究是有用的，并有助于使用鼠标作为人类神经疾病的模型。本研究描述了通过在手动处于目标位置的到达动作的点处发生修改达到的语法的舌突起。舌头突起与达到成功无关，并且不会受到培训的影响。在食物靶标存在下，舌突起比在不存在食物时达到的舌突起。有巨大的个人差异;一些小鼠总是制造舌突起，而其他小鼠从不制造舌头突起。替代的语法可以通过插入替代（共同发生的）运动来改变，增加了一种熟练的证据，即技术人员从多种相对独立的动作组装，每个动作都有其自身的感觉电流控制中央调制。舌头和手部达到运动可以共同发生，表明神经机制之间的特权关系控制舌头和手的运动。

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