Godoy J, Lüders H, Dinner D S, Morris H H, Wyllie E
Section of Epilepsy and Clinical Neurophysiology, Cleveland Clinic Foundation, OH.
Neurology. 1990 Feb;40(2):296-9. doi: 10.1212/wnl.40.2.296.
We studied the eye movements (EM) elicited by electrical stimulation of the frontal lobe in 19 awake patients evaluated with subdural electrodes for epilepsy surgery. All patients had only contralateral conjugated EM. They were saccadic in 16 patients (84%). Head version, always following the eye deviation, occurred in 11 patients (58%). We also determined the eye field somatotopic distribution analyzing the responses obtained from the electrodes adjacent to the eye fields. All patients had motor cortex contiguous to the eye fields. In 17 patients (90%) the eye fields were located in front or at the level of the motor representation. There was no silent cortex between the motor strip and the eye fields.
我们对19例因癫痫手术而采用硬膜下电极评估的清醒患者进行了研究,观察额叶电刺激引发的眼动(EM)情况。所有患者仅出现对侧共轭眼动。其中16例患者(84%)的眼动为扫视。11例患者(58%)出现头转动,且总是跟随眼偏斜。我们还通过分析眼区附近电极获得的反应来确定眼区的躯体感觉定位分布。所有患者的运动皮层均与眼区相邻。17例患者(90%)的眼区位于运动代表区前方或同一水平。运动带和眼区之间不存在静区。