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The Bereitschaftspotential preceding stepping in patients with isolated gait ignition failure
Author(s) -
Vidailhet M.,
Atchison P. R.,
Stocchi F.,
Thompson P. D.,
Rothwell J. C.,
Marsden C. D.
Publication year - 1995
Publication title -
movement disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.352
H-Index - 198
eISSN - 1531-8257
pISSN - 0885-3185
DOI - 10.1002/mds.870100105
Subject(s) - sitting , ankle dorsiflexion , physical medicine and rehabilitation , gait , psychology , ankle , medicine , anatomy , pathology
The cerebral activity preceding voluntary, self‐paced ankle dorsiflexion movements while seated was compared with that before a stepping movement of the same foot while standing in four patients with isolated gait ignition failure. Results within the patient group were variable, but all exhibited some increase in the Bereitschaftspotential (BP) amplitude when stepping as compared with sitting, similar to that seen in normal subjects. This differs from previous results in patients with Parkinson's disease in which stepping was not accompanied by a normal increase in BP amplitude. This difference suggests that the mechanisms responsible for the start hesitation that is common to both Parkinson's disease and gait ignition failure may differ in the two conditions.