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首页> 外文期刊>Neuron >Parallel Inhibitory and Excitatory Trigemino-Facial Feedback Circuitry for Reflexive Vibrissa Movement
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Parallel Inhibitory and Excitatory Trigemino-Facial Feedback Circuitry for Reflexive Vibrissa Movement

机译：用于反射VIBRISA运动的平行抑制和兴奋性三角形面部反馈电路

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摘要

Animals employ active touch to optimize the acuity of their tactile sensors. Prior experimental results and models lead to the hypothesis that sensory inputs are used in a recurrent manner to tune the position of the sensors. A combination of electrophysiology, intersectional genetic viral labeling and manipulation, and classical tracing allowed us to identify second-order sensorimotor loops that control vibrissa movements by rodents. Facial motoneurons that drive intrinsic muscles to protract the vibrissae receive a short latency inhibitory input, followed by synaptic excitation, from neurons located in the oralis division of the trigeminal sensory complex. In contrast, motoneurons that retract the mystacial pad and indirectly retract the vibrissae receive only excitatory input from interpolaris cells that further project to the thalamus. Silencing this feedback alters retraction. The observed pull-push circuit at the lowest-level sensorimotor loop provides a mechanism for the rapid modulation of vibrissa touch during exploration of peri-personal space.
机译：动物采用主动触摸以优化触觉传感器的敏锐度。现有的实验结果和模型导致假设以经常性方式使用感觉输入来调整传感器的位置。电生理学，交叉遗传病毒标记和操纵的组合，以及古典追踪允许我们识别通过啮齿动物控制vibriassa运动的二阶传感器环。驾驶内在肌肉来伸出弧菌的面部运动神经元接受短延迟抑制输入，其次是突触激发，其来自位于三叉族感觉复合物的oralis划分的神经元。相比之下，缩回神秘垫和间接缩回的运动神经元仅接受从进一步突出到丘脑的颞下细胞的兴奋性输入。沉默的反馈改变了缩回。在最低级别的Sensimotor环路下观察到的拉动电路提供了一种机制，可以在勘探勘探佩利 - 个人空间期间快速调制vibrissa触摸。

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  • 来源
    《Neuron》 |2017年第3期|共14页
  • 作者

    Bellavance Marie-Andree; Takatoh Jun; Lu Jinghao; Demers Maxime; Kleinfeld David; Wang Fan; Deschenes Martin;

  • 作者单位

    Laval Univ Dept Psychiat &

    Neurosci Quebec City PQ G1J 2G3 Canada;

    Duke Univ Med Ctr Dept Neurobiol Durham NC 27710 USA;

    Duke Univ Med Ctr Dept Neurobiol Durham NC 27710 USA;

    Laval Univ Dept Psychiat &

    Neurosci Quebec City PQ G1J 2G3 Canada;

    Univ Calif San Diego Dept Phys La Jolla CA 92093 USA;

    Duke Univ Med Ctr Dept Neurobiol Durham NC 27710 USA;

    Laval Univ Dept Psychiat &

    Neurosci Quebec City PQ G1J 2G3 Canada;

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  • 正文语种 eng
  • 中图分类 神经病学;
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