Taguchi K, Akai H, Watanabe M, Kuroda R, Ioku M
Electroencephalogr Clin Neurophysiol. 1980 Jul;49(1-2):162-7. doi: 10.1016/0013-4694(80)90362-4.
A 41-year-old patient underwent surgery for the partial removal of a posterior falx meningioma, which invaded deeply into both occipital lobes. After surgery, the patient complained of marked metamorphopsia, colored photopsia, afterimage and loss of stereopsia. The relationships between these symptoms and features of the VEP and EEG power spectra (both under resting and photic driving conditions) were investigated. Marked photopsia on the 4th postoperative day was accompanied by EEG features indicating asynchronous excitation of injured cortical cells, while the presence of a strong afterimage on days 17 through 24 coincided with indications of an apparent refractoriness in cortical activation.
一名41岁的患者接受了手术，部分切除侵入双侧枕叶深部的大脑镰后部脑膜瘤。术后，患者抱怨有明显的视物变形、彩色光幻视、后像和立体视觉丧失。研究了这些症状与视觉诱发电位（VEP）和脑电图功率谱特征（在静息和闪光刺激条件下）之间的关系。术后第4天出现的明显光幻视伴有脑电图特征，表明受损皮质细胞的异步兴奋，而在第17至24天出现强烈后像则与皮质激活明显不应期的迹象相符。
