Alteration of early components of the visual evoked potential in amyotrophic lateral sclerosis

被引:40
作者
Munte, TF [1 ]
Troger, MC [1 ]
Nusser, I [1 ]
Wieringa, BM [1 ]
Johannes, S [1 ]
Matzke, M [1 ]
Dengler, R [1 ]
机构
[1] Hannover Med Sch, Dept Neurol, D-3000 Hannover, Germany
关键词
amyotrophic lateral sclerosis; visual evoked potential;
D O I
10.1007/s004150050206
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Evoked potentials were recorded in three different visual experiments in 14 patients with amyotrophic lateral scierosis (ALS) and 14 matched control subjects. Control subjects' evoked potentials (EPs) were characterized by an initial positivity in the 99-140 ms range (P1) at the temporo-occipital site. This component was absent from the group average of the ALS patients as well as the individual patients' EPs. As the P1 is known to emanate from inferior occipito-temporal areas, this finding provides electrophysiological evidence for a cortical involvement in ALS including visual areas.
引用
收藏
页码:206 / 210
页数:5
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