Abstract:
OBJECTIVE:To investigate residual function of the motor cortex corresponding to the hand of the amputated arm (MCamp). METHODS:Focal transcranial magnetic stimulation (TMS) of MCamp was performed in 10 patients 22 to 52 years after arm amputation to inhibit tonic muscle contraction in the intact hand ipsilateral to cortex stimulation. RESULTS:In all patients, onset latency, degree, and duration of this inhibition were normal. CONCLUSION:The presence of motor inhibition in the residual hand of amputees originating from the hand motor representation of MCamp indicates residual cortical motor representation of the lost hand irrespective of whether the effect is mediated by commissural or ipsilateral corticospinal connections.
journal_name
Neurologyjournal_title
Neurologyauthors
Röricht S,Meyer BUdoi
10.1212/wnl.54.4.984subject
Has Abstractpub_date
2000-02-22 00:00:00pages
984-7issue
4eissn
0028-3878issn
1526-632Xjournal_volume
54pub_type
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