A study in the strategy for motor control of human masticatory system-about the nerve behavioristic ability and the mental tension level at executing tasks-

通过将(1)、(2)和(3)与“预期”联系起来，我们计划对每个年龄组的咀嚼系统控制策略进行分析。(2)生活质量(WHO/QOL26)，(3)精神紧张程度(手掌出汗，脉率)和执行任务时张口(自由下巴，对声音指令信号的下巴敲击动作：1.3赫兹，0.3赫兹，随机)1.受试者为13名青壮年(平均24.9岁)，4名老年人(74.9岁)(张口，出汗水平，脉率：两人(69.0岁)，4人(74.9)。2.有牙老年组虽然神经行为能力较青年组有明显下降，但对自身健康状况非常满意，心态平衡。青年组每种任务的平均张口值不同，但老年组每种任务差异不大，标准差较大。因此，假设青年组在初始学习完成后已经决定了他们的任务执行策略，并且他们一直以几乎相同的方式执行任务，而老年组在回顾他们的策略时，参考了每一种任务中每次敲击的反馈信息。此外，青年组的出汗水平在随机割胶中逐渐减少。假设他们已经掌握了随机执行任务的策略，然后他们调整了策略以使其有效。在老年组中，出汗水平并没有随着任务的推进而变化，研究认为他们最初使用的策略与其他任务几乎相同。

We planned the analysis of the strategy of masticatory system control in each age group by relating (1),(2),and (3) to "anticipation". : (1)The nerve behavioristic ability (skillfulness of fingers and arms, ability that people coordinate their body movements from General occupation propriety inspection edited by Ministry of Health, Labour and Welfare), (2)QOL(WHO/QOL26), (3)the mental tension level (palmar sweating, pulse rates) and gape on executing tasks (free jaw tapping, jaw tapping movements to acoustic command signals : 1.3Hz,0.3Hz,random)1.Subjects were thirteen young adults (mean age 24.9), four elderly dentulous people (74.9) (gape, sweating level, pulse rate : two people 69.0 years old) and four edentulous people with dentures (74.9).2.Though dentulous elderly group considerably decline in their nerve behavioristic ability compared with the young group, they are very satisfied in their health condition and they have their well-balanced mind.The mean value of gape in young group are different for each kind of the task, but those in elderly groups aren't so much different for each kind of the task and standard deviations are large. Therefore it is supposed that young group has decided their strategies for executing tasks after the initial learning was finished and they have performed tasks by to the last in almost the same way, and elderly group performed tasks while they were reviewing their strategies referring to the feedback information of each tapping in any kinds of tasks. Furthermore the sweating level of young group is gradually decreasing in random tapping. It is supposed that they have mastered their strategy for executing tasks at random and then they have adjusted strategy to be effective. In elderly groups sweating levels didn't vary as the task advanced, and it supposed that they originally use the almost same strategy as other tasks.