Plasticity and behavioral change under the prolonged unusual gravity environment

地球生物的生物机制在正常情况下总是受到重力作用，通常适应1G环境。包括人类在内，所有生命体似乎都在个体和遗传上具有中枢-末梢适应编程机制。当其中一个物体处于不同的 G 条件时，例如在空间中，O 重力会给它们大量的负载来适应另一种重力条件。这需要时间。如果他们想在这种情况下活得更久，就必须改变他们的行为和神经生理机制和功能。如果它们达到某种适应水平，问题就来了，它们如何获得其天然功能的可塑性，或者它们如何在遗传史之外适应其个体功能。这些问题引出了人类如何从个体和基因角度获取重力信息的基础研究课题。这里所做的研究被分为我们的研究项目，例如1）在相当长的异常重力条件下，人类的先天行为如何改变，2）可塑性如何在视觉变形条件下通过实验变得明显，3）短期微重力如何给予人类适应，以及4）仔细分析人类视觉长期棱镜适应下的行为数据。该项目所做的实验简单地分为两种条件，一种是长期地面基础实验，另一种是短期O重力实验条件。地面实验的结果表明，新的完全适应行为的可塑性需要相当长的时间，但部分行为变化很快就出现了。短期太空实验表明，反重力肌肉和非反重力肌肉的合作并不完全支持对O重力的相当完全适应的行为。结果表明，需要对各种重力条件下的运动协调进行更广泛的研究。较少的

Biological mechanisms of the livings on the earth always suffered the grvity effect and usually adapted to the 1-G environments in a normal condition. Including human beings, all of the living spieces seems to have the central-peripheral adaptation programming mechanisms individually and genetically. When one of the spieces go to the different G condition, such as in a space, O gravity gives them a lot of loards to be accustummed to the another gravity conditions. It takes a time. If they wants to live longer in that condition they have to change their behavioral and neurophysiological mechanisms and function. If they reache to some adaptation level, the question comes how do they get the plasticity for their native function, or how do they adapated their individual functions apart from genetic history. These question leads the fundamental research aitems to be studied how the human beings get gravity infomation individally and genetically. The research done here was categorized into f … More our reseach items, such as 1) how changeable the innate behavior of the human beings after rather longer abnormal gravity condition, 2) how the plasticity become overt under the visual transformed condition experimentally, 3) how the short term micro-gravity gives the adaptation to the human beings, and 4) analyze the behavioral data under the prolonged prism adaptation for the human vision is carefully done. The experiments done in the project were simply categorized into two conditions, one is long term ground base experiment and the other one is short term O-gravity experimental condition. The rusults from the ground base experiments showed us that the plasticity to the new full adaptation behavior needs rather longer term, however a part of behavioral change emerged very quickly. Short term space experiment showed that the rather fully adapted behavior to the O-gravity is not fully supported between the cooperation of the anti-gravity muscle and non-anti-gravity muscle. The results leads us that more extensive research for the motor-motorcoordination under the various gravity condition will be needed. Less