THE EFFECTS OF TEMPERATURE ON MECHANOTRANSDUCTION IN THE COCKROACH TACTILE SPINE
THE EFFECTS OF TEMPERATURE ON MECHANOTRANSDUCTION IN THE COCKROACH TACTILE SPINE
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DOI：
10.1007/bf00609849
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发表时间：
1982-01-01
期刊：
影响因子：
--
通讯作者：
KUSTER, JE
中科院分区：
文献类型：
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作者：
FRENCH, AS;KUSTER, JE
蟑螂股骨触觉棘的动力学行为可表征为分数分化。在频域中，这对应于可以完全由2个参数表示的频率响应函数：1弧度/s频率处的增益和频率指数。在10 °范围内的温度下测量触觉脊柱中机械传导的频率响应函数40.degree. C.在此范围之外的几摄氏度的温度下，感觉传导失败。温度对感觉传导的影响是在每个温度下将整个响应乘以与频率无关的恒定因子。倍增因子随着升温到. apprx而增加。35.degree.然后迅速下降。数据高达35度。C与Arrhenius关系拟合良好，活化能为18.6 kcal/mol。改变温度对频率指数没有影响，频率指数保持恒定在apprx。0.5，对应于执行半微分的系统。温度敏感性和感觉转导在这些机械感受器的可能网站进行了讨论。半分化行为的可能起源进行了审查和粘弹性行波模型的管状体的建议。比较画在整个行为的环层小体，肌梭初级传入和其他表皮机械感受器。
The dynamic behavior of the cockroach femoral tactile spine can be characterized as fractional differentiation. In the frequency domain this corresponds to a frequency response function which can be completely represented by 2 parameters: the gain at a frequency of 1 radian/s and an exponent of frequency. Frequency response functions for mechanotransduction in the tactile spine were measured at temperatures in the range of 10.degree.-40.degree. C. Sensory transduction fails at temperatures a few degrees Celsius outside this range. The effect of temperature upon sensory transduction is to multiply the entire response by a constant factor, independent of frequency, at each temperature. The multiplication factor increases with warming up to .apprx. 35.degree. C and then decreases rapidly. The data up to 35.degree. C is well fitted by an Arrhenius relationship with an activation energy of 18.6 kcal/mol. Changing the temperature has no effect upon the exponent of frequency which stays constant at .apprx. 0.5, corresponding to a system which performs semi-differentiation. The possible sites of temperatures sensitivity and sensory transduction in these mechanoreceptors are discussed. Possible origins of the semi-differentiation behavior are reviewed and a visco-elastic traveling wave model of the tubular body is suggested. Comparisons are drawn throughout to the behavior of Pacinian corpuscles, muscle spindle primary afferents and other cuticular mechanoreceptors.