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J Neurol Neurosurg Psychiatry. 1990 Aug;53(8):705-7.

Transcranial magnetic stimulation can influence the selection of motor programmes.

Author information

  • 1Department of Clinical Neurophysiology, Prince Henry Hospital, Sydney, Australia.

Erratum in

  • J Neurol Neurosurg Psychiatry 1991 Jun;54(6):510.

Abstract

Transcranial magnetic stimulation is becoming increasingly popular to study the rapidly conducting output from the motor cortex. Little is known about the effects of such stimuli on other aspects of cortical function. In the study single magnetic stimuli, subthreshold for movement, produced significant preference for selection of one hand in a forced-choice task. The hand preference depended upon the direction of the induced current. It occurred when the coil was positioned over frontal but not occipital cortex and was not mimicked by weak DC stimulation. Single magnetic stimuli which do not evoke movement can alter high-level motor planning.

PMID:
2213050
[PubMed - indexed for MEDLINE]
PMCID:
PMC488179
Free PMC Article
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