{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,15]],"date-time":"2026-04-15T15:54:22Z","timestamp":1776268462907,"version":"3.50.1"},"reference-count":21,"publisher":"FapUNIFESP (SciELO)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arq. Neuro-Psiquiatr."],"published-print":{"date-parts":[[2014,4]]},"abstract":"<jats:p>Tremor in essential tremor (ET) and Parkinson\u2019s disease (PD) usually present specific electrophysiologic profiles, however amplitude and frequency may have wide variations.  Objective:  To present the electrophysiologic findings in PD and ET.   Method:  Patients were assessed at rest, with posture and action. Seventeen patients with ET and 62 with PD were included. PD cases were clustered into three groups: predominant rest tremor; tremor with similar intensity at rest, posture and during kinetic task; and predominant kinetic tremor.   Results:  Patients with PD presented tremors with average frequency of 5.29\u00b11.18 Hz at rest, 5.79\u00b11.39 Hz with posture and 6.48\u00b11.34 Hz with the kinetic task. Tremor in ET presented with an average frequency of 5.97\u00b11.1 Hz at rest, 6.18\u00b11 Hz with posture and 6.53\u00b11.2 Hz with kinetic task. Seven (41.2%) also showed rest tremor.   Conclusion:  The tremor analysis alone using the methodology described here, is not sufficient to differentiate tremor in ET and PD.<\/jats:p>","DOI":"10.1590\/0004-282x20140006","type":"journal-article","created":{"date-parts":[[2017,3,8]],"date-time":"2017-03-08T15:42:53Z","timestamp":1488987773000},"page":"301-306","source":"Crossref","is-referenced-by-count":9,"title":["Electrophysiologic characteristics of tremor in Parkinson?s disease and essential tremor"],"prefix":"10.1590","volume":"72","author":[{"given":"Ederson","family":"Cichaczewski","sequence":"first","affiliation":[{"name":"Universidade Tecnol\u00f3gica Federal do Paran\u00e1,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Renato P.","family":"Munhoz","sequence":"additional","affiliation":[{"name":"Associa\u00e7\u00e3o Paranaense dos Portadores de Parkinsonismo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joaquim M.","family":"Maia","sequence":"additional","affiliation":[{"name":"Universidade Tecnol\u00f3gica Federal do Paran\u00e1,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Percy","family":"Nohama","sequence":"additional","affiliation":[{"name":"Universidade Tecnol\u00f3gica Federal do Paran\u00e1,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Edison M.","family":"N\u00f3vak","sequence":"additional","affiliation":[{"name":"Universidade Federal do Paran\u00e1,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Helio A.","family":"Teive","sequence":"additional","affiliation":[{"name":"Universidade Federal do Paran\u00e1,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"S90","DOI":"10.1016\/S1353-8020(11)70029-3","article-title":"Epidemiology, diagnosis and differential diagnosis in Parkinson's disease 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