{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T18:40:04Z","timestamp":1789584004491,"version":"build-2803163510"},"reference-count":34,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2015,9,24]],"date-time":"2015-09-24T00:00:00Z","timestamp":1443052800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Muscle and Nerve"],"published-print":{"date-parts":[[2015,12]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p><jats:italic>Introduction:<\/jats:italic> The amplitudes of F\u2010waves and motor\u2010evoked potentials (MEPs) increase during imagination or active motor performance. The aim of this study was to investigate F\u2010wave and MEP facilitation during assessment of apraxia. <jats:italic>Methods:<\/jats:italic> Eight Parkinson disease (PD) patients with apraxia, 11 patients without apraxia, and 8 healthy volunteers were enrolled. F\u2010waves and MEPs were recorded during 4 states (resting, imagination, observation, and active movement). <jats:italic>Results:<\/jats:italic> The mean amplitude of the F\u2010waves increased significantly during imagination and active movement as compared with at rest in healthy individuals (<jats:italic>P<\/jats:italic>\u2009=\u20090.028) and in the nonapraxia group (<jats:italic>P<\/jats:italic>\u2009=\u20090.005). PD patients with apraxia did not have similar facilitation. The mean amplitude of the MEPs also showed a similar loss of facilitation in PD with apraxia. <jats:italic>Conclusions:<\/jats:italic> Loss of facilitation during the preparation for movement is closely related to the \u201cgold standard\u201d clinical praxis battery. This study provides additional support and a potential electrophysiological assessment method for apraxia in PD. <jats:italic>Muscle Nerve<\/jats:italic> <jats:bold>52<\/jats:bold>: 1072\u20131077, 2015<\/jats:p>","DOI":"10.1002\/mus.24663","type":"journal-article","created":{"date-parts":[[2015,3,26]],"date-time":"2015-03-26T02:35:16Z","timestamp":1427337316000},"page":"1072-1077","source":"Crossref","is-referenced-by-count":5,"title":["F\u2010wave and motor\u2010evoked potentials during motor imagery and observation in apraxia of Parkinson disease"],"prefix":"10.1002","volume":"52","author":[{"given":"Ay\u015feg\u00fcl","family":"G\u00fcnd\u00fcz","sequence":"first","affiliation":[{"name":"Department of Neurology Cerrahpasa School of Medicine, Istanbul University 34098 K.M. Pasa Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meral E.","family":"Kiziltan","sequence":"additional","affiliation":[{"name":"Department of Neurology Cerrahpasa School of Medicine, Istanbul University 34098 K.M. Pasa Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2015,9,24]]},"reference":[{"key":"e_1_2_6_2_1","first-page":"117","volume-title":"Neurology in clinical practice. 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