Kondás M, Bartko D, Drsková A, Dekrét J
Cesk Neurol Neurochir. 1989 May;52(3):207-11.
The authors examined visual evoked potentials using the method of the visual full field stimulation hemi-field, using a check-board patterned structural stimulus in 69 patients with the diagnosis of vascular headache. The peak latencies of the waves did not differ significantly in the group of patients with vascular cephalea, as compared with the control group; this applies to both ways of stimulation. The es amplitudes of waves (P1 = P100 and N2) were significantly higher in the group with vascular cephalea after stimulation by the visual field. Of half the visual field stimulation did not reveal statistically significant differences in the latencies waves. The results may indicate an increased electrophysiological activity of the visual system in the interparoxysmal period in patients with vascular cephalea.
作者采用半视野全视野刺激法,使用棋盘格图案的结构刺激,对69例诊断为血管性头痛的患者进行了视觉诱发电位检查。与对照组相比,血管性头痛患者组的波峰潜伏期在两种刺激方式下均无显著差异。在视野刺激后,血管性头痛组的波幅(P1 = P100和N2)明显更高。半视野刺激未发现波潜伏期有统计学上的显著差异。结果可能表明,血管性头痛患者发作间期视觉系统的电生理活动增强。