权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Analysis of the Central Control Mechanism of Masticatory Function by Magnetic Stimulation.

磁刺激咀嚼功能的中枢控制机制分析。

基本信息

批准号：
09832002
负责人：
KOBAYASHI Hiroshi
金额：
$ 1.92万
依托单位：
Niigata University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09832002/
关键词：
magnetic stimulation mastication movement control transcranial stimulation central control mechanism

项目摘要

The object of this study is to clarify the central control mechanism of the jaw movement by means of the magnetic stimulation to the central nerve system that will make disturbance to masticatory muscle activities.(1) The Response of the Sternocleidomastoid muscle (SCM) with peripheral nerve stimulation : we observed ipsilateral response of the masseter muscle and the sternocleidomastoid muscle when stimulated at temporal part of the scull about 11cm lateral from vertex. The latency of the response was about 5ms. By the data we decided the response was the H reflex by the stimulation in the peripheral nerve other than the central cortex.(2) The difference of the reaction of the SCM by changing the jaw position : The response of the SCM was changed by the jaw position. But, there were the other changing factors other than that We couldn't decide that the jaw position will change the reflex activity of the SCM or not.(3) A test for the central control mechanism of the chewing movement by the robotic simulation : Using impedance control mechanism we simulated jaw open-close movement in an autonomous jaw robot. Its outcome implied that in the impedance control mechanism we would be able to simulate the magnetic transcranial stimulation in it.(4) The central stimulation during chewing : We made magnetic stimulation when the subjects were chewing gum. The stimulation in the period of occluding phase was elicited the silent period after the stimulation and the duration of the muscle firing was prolonged.

本研究的目的是通过磁刺激中枢神经系统，干扰咀嚼肌活动，阐明颌骨运动的中枢控制机制。(1)周围神经刺激胸锁乳突肌的反应：在距颅顶外侧11cm处刺激颅骨颞部，观察同侧咬肌和胸锁乳突肌的反应。反应潜伏期约为5ms。根据实验数据，我们确定刺激周围神经而不是中央皮层产生的反应是H反射。(2)下颌位置改变对SCM反应的影响：下颌位置改变对SCM反应的影响。但是，除此之外，还有其他的变化因素，我们不能确定颌位是否会改变SCM的反射活动。(3)机器人仿真对咀嚼运动中枢控制机制的验证：利用阻抗控制机制，对自主式下颌机器人的下颌开合运动进行了仿真。其结果表明，在阻抗控制机制，我们将能够模拟磁经颅刺激。(4)咀嚼时的中枢刺激：在受试者咀嚼口香糖时进行磁刺激。阻断期的刺激可在刺激后的沉默期诱发，肌肉放电持续时间延长。