Montgomery J C, Macdonald J A
Department of Zoology, University of Auckland, New Zealand.
Am J Physiol. 1990 Aug;259(2 Pt 2):R191-6. doi: 10.1152/ajpregu.1990.259.2.R191.
Temperature change has a major impact on the function of the nervous system and its components, including altering synaptic gain and changing synaptic and conduction delays. Although many animals are subject to changes in body temperature, the degree of temperature change actually experienced by many poikilotherms is not well documented. The fact that many animals continue to exhibit coordinated sensorimotor function during changes in body temperature indicates that some form of temperature compensation has occurred within the nervous system. Compensations may occur automatically (opposing effects of temperature offsetting each other), they may be an inherent property of closed-loop systems, or they may be effected by more sophisticated control mechanisms such as those of the vertebrate cerebellum.
温度变化对神经系统及其组成部分的功能有重大影响,包括改变突触增益以及改变突触和传导延迟。尽管许多动物会经历体温变化,但许多变温动物实际经历的温度变化程度尚无充分记录。许多动物在体温变化期间仍能持续表现出协调的感觉运动功能,这一事实表明神经系统内已发生了某种形式的温度补偿。补偿可能自动发生(温度的相反作用相互抵消),可能是闭环系统的固有属性,也可能是由更复杂的控制机制(如脊椎动物小脑的控制机制)实现的。