Tsoi S L, Orlov I V, Bovk T V
Laboratory of the Physiology of the Vestibular Apparatus, I.P. Pavlov Institute of Physiology, Academy of Sciences of the SSSR [AN SSSR], Leningrad.
Neurosci Behav Physiol. 1991 Mar-Apr;21(2):136-45. doi: 10.1007/BF01182889.
The temperature microstimulation of the semicircular canal (heat bursts lasting about 2 sec with a peak amplitude of 0.5-5.0 degrees C) can be regarded as an analog of angular acceleration acting within the cavity of the given canal; the combination of temperature microstimulations targeted simultaneously on several canals can serve as a physical model of accelerated rotation having complex spatial characteristics. The recording of the activity of neurons of the vestibular nuclei of the frog (n = 278) in response to temperature microstimulation of the canals showed that 80% of the neurons have inputs from one to two canals and only 20% from three to six canals. The distribution of laterality was characterized by the predominance of ipsilateral inputs: 201 neurons (72.3%) had only ipsilateral inputs; 14 neurons (5%) had only contralateral inputs; 63 neurons (22.7%) had both inputs. The ipsilateral horizontal (67.6%) and the posterior (61.9%) were the most effective inputs; while among the contralateral, the posterior (21.2%) canals were the most effective; the least effective were the contralateral horizontal (8.6%) and the anterior (5.0%) canals. The presence of latent canal inputs (both excitatory and inhibitory) which showed up in combination with effective inputs was demonstrated.
对半规管进行温度微刺激（热脉冲持续约2秒，峰值幅度为0.5 - 5.0摄氏度）可被视为作用于给定半规管腔内的角加速度的模拟；同时针对多个半规管的温度微刺激组合可作为具有复杂空间特征的加速旋转的物理模型。对青蛙前庭核神经元（n = 278）响应半规管温度微刺激的活动记录表明，80%的神经元有来自一到两个半规管的输入，只有20%有来自三到六个半规管的输入。偏侧性分布的特点是同侧输入占主导：201个神经元（72.3%）只有同侧输入；14个神经元（5%）只有对侧输入；63个神经元（22.7%）有双侧输入。同侧水平半规管（67.6%）和后半规管（61.9%）是最有效的输入；而在对侧中，后半规管（21.2%）是最有效的；最无效的是对侧水平半规管（8.6%）和前半规管（5.0%）。已证实存在与有效输入同时出现的潜在半规管输入（包括兴奋性和抑制性）。
