ANALYSIS OF COLD AND WARM RECEPTOR ACTIVITY IN VAMPIRE BATS AND MICE
ANALYSIS OF COLD AND WARM RECEPTOR ACTIVITY IN VAMPIRE BATS AND MICE
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DOI：
10.1007/bf00583749
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发表时间：
1988-07-01
影响因子：
4.5
通讯作者：
KURTEN, L
中科院分区：
文献类型：
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作者：
SCHAFER, K;BRAUN, HA;KURTEN, L
对常见吸血蝙蝠和小鼠面部温度感受器的反应特征进行了定量研究。在蝙蝠和小鼠中发现了冷感受器；温暖受体仅在蝙蝠体内建立。这两个物种的冷和热感受器群体与迄今为止研究的各种哺乳动物物种的面部温度感受器群体具有大部分相同的特性。小鼠冷受体活动的时间模式与在猫、狗和猴子中观察到的相对应：较低温度下的冲动组和较高温度下的跳动活动。在保持温度的情况下，蝙蝠的冷感受器中没有启动脉冲群。然而，从不同初始温度开始的冷却步骤在维持温度和随后的升温步骤下偶尔会在蝙蝠的温暖感受器中产生定期脉冲组中的瞬态分组放电。数据表明，热受体中周期性活动的温度依赖性与冷受体中不同。结论是，循环过程参与了热受体和冷受体的感觉转导，并且这种循环行为似乎是所有脊椎动物物种的温度感受器的普遍特性。
The response characteristics of facial thermoreceptors of the common vampire bat and of the mouse have been quantitatively studied. Cold receptors were identified in bat and mouse; warm receptors were only established in the bat. Cold and warm receptor populations of the two species share most of their properties with facial thermoreceptor populations of various mammalian species investigated so far. The temporal pattern of activity of cold receptors of the mouse corresponded to that observed in cats, dogs and monkeys: impulse groups at lower, and beating activity at higher temperatures. At maintained temperature, no impulse groups were initiated in cold receptors of the bat. However, cooling steps from various initial temperatures induced a transient grouped discharge in regualr groups of impulses was occasionally generated in warm receptors of the bat at maintained temperatures and following warming steps. The data indicate that the temperature dependence of periodic activity in warm receptors is not uniform as it is in cold receptors. It is concluded that cyclic processes are involved in sensory transduction of both warm and cold receptors, and that this cyclic behavior seems to be a general property of thermoreceptors of presumably all vertebrate species.