Suppression of vision by transcranial magnetic stimulation: a third mechanism

被引:40
作者
Corthout, E
Uttl, B
Juan, CH
Hallett, M
Cowey, A
机构
[1] Univ Oxford, Dept Expt Psychol, Oxford OX1 3UD, England
[2] Oregon State Univ, Dept Psychol, Corvallis, OR 97331 USA
[3] NINDS, Human Motor Control Sect, NIH, Bethesda, MD 20892 USA
关键词
transcranial magnetic stimulation (TMS); visual cortex; visual perception;
D O I
10.1097/00001756-200008030-00003
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
We recently reported three periods when single-pulse transcranial magnetic stimulation (TMS) of the occipital pole impaired performance on a forced-choice visual letter-identification task. TMS-induced suppression during these periods is best explained by a blink-associated covering of the pupils and by a direct interference with letter-processing neural activity. We now report TMS-induced suppression at times that seem too late for the suppression to be explained by the first mechanism and too early for the suppression to be explained by the second mechanism. The most likely explanation is a blink-associated interference with letter-processing neural activity. NeuroReport 11:2345-2349 (C) 2000 Lippincott Williams & Wilkins.
引用
收藏
页码:2345 / 2349
页数:5
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