Morphology and physiology of the afferent and efferent otolith neurons.

本文报道了松鼠猴前庭初级传入神经元细胞色素氧化酶的活性。细胞色素氧化酶活性与神经元大小呈负相关。用HRP法观察了豚鼠椭圆囊内初级前庭神经元的神经支配方式。不分叉的神经纤维与纹状区的I型毛细胞连接，而不分叉的神经纤维与椭圆囊斑中的I型和II型毛细胞连接。变异系数越高的不规则放电神经元倾斜增益越大。在侧倾反应神经元中，同侧倾斜反应神经元的数量多于对侧。本研究建立了一种生物胞素标记毛丝鼠前庭终器传入和传出神经元的新方法。在脑干背侧区，支配马的前庭传出纤维 关于我们 在网状结构中，囊状传出纤维多见于对侧，水平管传出纤维见于双侧。本文观察了冷热刺激对豚鼠耳石器发出的初级前庭纤维的影响。有一种倾向，即神经元的放电频率增加，增加了发射率，以温暖的刺激，而那些大鼠增加到对侧倾斜增加率，以冷刺激。因此，冷热试验不仅检查水平耳道功能，而且检查耳石功能。本文记录了正常人的畸变产物耳声发射（DP-OAE），并观察了对侧声刺激对DP-OAE的影响。对侧声刺激可抑制DP-OAE。对侧声刺激可抑制DP-OAE，前庭神经切断后这种抑制消失。少

Cytochrome oxidase activity of primary vestibular afferent neurons in Scarpa's ganglion of the squirrel monkey was demonstrated. Negative correlation between the size of the neurons and their cytochrome oxidase activities was observed. Innervation patterns of primary vestibular neurons in the guinea pig utricule were examined with HRP method. Nerve fibers which do not bifurcate connect with type I hair cells in the striolar region, while those that do not bifurcate connect with type I and type II hair cells throughout the utricular maculae. Irregularly firing neurons with higher coefficient of variation had higher gain to tilt. Among the lateral tilt reactive neurons, ipsilateral tilt neurons were greater in number than contralateral neurons. A new method was developed for specific labeling of vestibular afferent and efferent neurons from selected vestibular end-organs of chinchillas using biocytin. In the dorsal region of the brainstem, the vestibular efferents that innervated the hor … More izontal semicircular canal were located more caudally than those innervating the saccule and were primarily on the contralateral side, while, in the reticular formation, saccular efferents were found more on the contralateral side and horizontal canal efferents were found bilaterally. The effect of caloric stimulation on the primary vestibular fibers originating from the otolith organ was investigated in the guinea pig. There was a tendency for neurons with increased firing rates increased firing rates to warm stimulation, while those whose rats increased to contralateral tilting had increased rates to cold stimulation. The caloric test thus examines not only the horizontal canal function but also the otolith function. Distortion product otoacoustic emission (DP-OAE) were recorded in human subjects, and the effect of contralateral sound stimulation on them was examined. DP-OAE was suppressed by contralateral sound stimulation on them was examined. DP-OAE was suppressed by contralateral sound stimulation, and this suppression disappeared after vestibular neurectomy. Less