Gómez C, Torres B, Jimenez-Ridruejo G, Delgado-García J M
Neurosci Res. 1986 May;3(4):345-50. doi: 10.1016/0168-0102(86)90025-8.
The activity of identified abducens motoneurons has been recorded during spontaneous eye movements in the alert cat. Abducens motoneurons showed a burst of activity during saccades in the abducting direction. However, peak frequency during the burst was reached on the 4th-7th intervals. Instantaneous frequency of the first 5 intervals during the burst was linearly related to peak saccadic velocity and to peak frequency. Functional implications of reported findings are discussed in the text. These results favor the view that firing in abducens motoneurons during saccades is predetermined from the beginning of saccades, and do not provide evidence for possible modification of abducens motoneurons firing through internal feedback of motor error signals.
在警觉的猫进行自发眼动期间,已记录了已识别的展神经运动神经元的活动。展神经运动神经元在眼球外展方向的扫视过程中表现出一阵活动。然而,爆发期间的峰值频率在第4至第7个时间间隔时达到。爆发期间前5个时间间隔的瞬时频率与扫视峰值速度和峰值频率呈线性相关。文中讨论了所报告发现的功能意义。这些结果支持这样一种观点,即扫视期间展神经运动神经元的放电从扫视开始就已预先确定,并且没有为通过运动误差信号的内部反馈可能改变展神经运动神经元放电提供证据。