Duron B, Khater-Boidin J
Laboratoire de Neurophysiologie, URA 1331 CNRS, Faculté de Médecine, Amiens, France.
Int J Dev Neurosci. 1991;9(1):27-34. doi: 10.1016/0736-5748(91)90069-x.
In order to study the absolute refractory period of a given group of nerve fibres during development we measured absolute refractory periods and conduction velocities of motor fibres and the most excitable fibres in the human ulnar nerve of newborns, children and adults. In each group of nerve fibres absolute refractory period was not correlated to conduction velocity (i.e. fibre diameters) and was rather constant during development. However, absolute refractory period of the most excitable fibres was smaller than absolute refractory period of motor fibres independently of the subject's age. Thus, it appears that already at birth, absolute refractory period is characteristic for a given group of nerve fibres.
为了研究特定神经纤维组在发育过程中的绝对不应期,我们测量了新生儿、儿童和成人的人尺神经中运动纤维和最易兴奋纤维的绝对不应期及传导速度。在每组神经纤维中,绝对不应期与传导速度(即纤维直径)无关,并且在发育过程中相当恒定。然而,无论受试者年龄如何,最易兴奋纤维的绝对不应期都小于运动纤维的绝对不应期。因此,似乎在出生时,绝对不应期就是特定神经纤维组的特征。