期刊
CORTEX
卷 58, 期 -, 页码 272-280出版社
ELSEVIER MASSON
DOI: 10.1016/j.cortex.2014.01.012
关键词
Cerebellum; Visual; Motion detection; Orientation discrimination; TMS
Cerebellar patients have been found to show deficits in visual motion discrimination, suggesting that the cerebellum may play a role in visual sensory processing beyond mediating motor control. Here we show that triple-pulse online transcranial magnetic stimulation (TMS) over cerebellar vermis but not over the cerebellar hemispheres significantly impaired motion discrimination. Critically, the interference caused by vermis TMS on motion discrimination did not depend on an indirect effect of TMS over nearby visual areas, as demonstrated by a control experiment in which TMS over V1 but not over cerebellar vermis significantly impaired orientation discrimination. These findings demonstrate the causal role of the cerebellar vermis in visual motion processing in neurologically normal participants. (C) 2014 Elsevier Ltd. All rights reserved.
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