Inoue T
Brain Res. 1980 Mar 17;186(1):43-53. doi: 10.1016/0006-8993(80)90254-1.
Unitary discharges in the efferent ciliary nerves were studied in cervical sympathectomized rabbits. In all, 279 units were recorded and categorized, except 7 units, into the following 3 types from their responses to photic and other stimuli, i.e. type A (170 units), type B (42 units) and type C (60 units). Type A units were characterized by exhibiting excitatory response to ipsilateral eye illumination and the response was closely related to the luminance level. The type A was further classified into AI (excitation), AII (no change) and AIII (inhibition) on the basis of the response to contralateral illumination. It was inferred that the type A was functionally related to active pupilloconstriction. Type B units were characterized by showing an exclusively inhibitory response to ipsilateral and/or contralateral illumination and the inhibition was luminance-dependent. It was therefore assumed that the type B was concerned with active pupillodilation. Type C units were not responsive to light stimulus, though the type C displayed characteristic reflex response to mechanical or thermal stimulus within the receptive field. The reflexive response, however, was not mediated via the oculomotor nerve. In order to confirm the results of the unit analysis, pupillary light reflex was examined. In particular, the consensual reflex varied depending upon individual rabbits. Namely, one became miotic, another mydriatic and a third remained uninfluenced, which corresponded well with the response pattern of the light-sensitive units.
在颈交感神经切除的家兔中研究了传出睫状神经的单一放电。总共记录并分类了279个单位（除7个单位外），根据它们对光和其他刺激的反应分为以下3种类型，即A型（170个单位）、B型（42个单位）和C型（60个单位）。A型单位的特征是对同侧眼照明表现出兴奋反应，且该反应与亮度水平密切相关。根据对侧照明的反应，A型进一步分为AI型（兴奋）、AII型（无变化）和AIII型（抑制）。据推测，A型在功能上与主动瞳孔收缩有关。B型单位的特征是对同侧和/或对侧照明仅表现出抑制反应，且抑制是亮度依赖性的。因此推测B型与主动瞳孔扩张有关。C型单位对光刺激无反应，尽管C型在感受野内对机械或热刺激表现出特征性反射反应。然而，该反射反应不是通过动眼神经介导的。为了证实单位分析的结果，检查了瞳孔对光反射。特别是，同感性反射因个体家兔而异。即，一只家兔瞳孔缩小，另一只家兔瞳孔散大，第三只家兔无变化，这与光敏单位的反应模式非常吻合。
