REFLEX AND FINE FORCE DYNAMICS OF THE PERIORAL SYSTEM

描述：（改编自申请人摘要）：输入信息 来自本体感受和皮肤机械敏感性输入可能发挥作用 在运动的每时每刻的协调中起着重要作用。 是 假设涉及小的力量和运动的言语， 受到这些传入信息的强烈影响。 目前，很少 关于无害机械的影响的信息是可用的， 输入的行为。 建议的研究将扩大我们的 感觉运动整合对口周肌力控制的认识 复杂的使用机械诱发口周反射范式作为一个 探针，以量化兴奋性的变化发生在水平的 吮吸时的面神经核、嘴唇姿势和言语。 实验将 涉及从婴儿到老年人的整个年龄范围的测试对象 成年人了 希望这些实验能提供新的 关于受控机械之间关系的发展信息 传递到下面部的输入和诱发的肌肉活动的特征， 包括特异性、调制和空间总和。 此外该 对婴儿和幼儿的检测将提供新的手段， 定量评估这些人群的三叉神经-面部功能。

DESCRIPTION: (Adapted from the Applicant's abstract): Afferent information derived from proprioceptive and cutaneous mechanosensitive inputs may play an important role in the moment-to-moment coordination of movement. It is hypothesized that speech which involves small forces and movements, is strongly influences by such afferent information. At present, very little information is available concerning the effects of innocuous mechanical inputs on oromotor behaviors. The proposed studies will expand our knowledge of sensorimotor integration on force control in the perioral complex by using the mechanically evoked perioral reflex paradigm as a probe to quantify the changes in excitability occurring at the level of the facial nucleus during sucking, lip posturing, and speech. Experiments will involve testing subjects throughout the age range from infants to elderly adults. It is hoped that the proposed experiments will provide new developmental information on the relations between controlled mechanical inputs delivered to the lower face and features of evoked muscle activity, including specificity, modulation, and spatial summation. In addition, the testing of infants and very young children will provide new means to quantitatively assess trigemino-facial function in these populations.