title: Psychogenic palatal tremor.
abstract: We describe a case of psychogenic palatal tremor. The diagnosis was supported by clinical criteria and neurophysiological testing, including frequency analysis and jerk-locked back-averaging. We discuss the differential diagnosis of palatal tremor as well as the role of neurophysiological testing in the diagnosis of psychogenic movement disorders.
authors.affiliation: Human Motor Control Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892, USA.
authors.forename: Sarah
authors.initials: S
authors.lastname: Pirio Richardson
authors.forename: Zoltan
authors.initials: Z
authors.lastname: Mari
authors.forename: Masao
authors.initials: M
authors.lastname: Matsuhashi
authors.forename: Mark
authors.initials: M
authors.lastname: Hallett
mesh_terms: D000328:Adult; D002540:Cerebral Cortex / Q000503:physiopathology; D003937:Diagnosis, Differential; D004569:Electroencephalography; D004576:Electromyography; D020329:Essential Tremor / Q000175:diagnosis* / Q000503:physiopathology / Q000523:psychology; D019054:Evoked Potentials, Motor / Q000502:physiology; D005260:Female; D005583:Fourier Analysis; D006801:Humans; D007821:Laryngeal Muscles / Q000503:physiopathology; D009460:Neurologic Examination; D010156:Palatal Muscles / Q000503:physiopathology*; D010609:Pharyngeal Muscles / Q000503:physiopathology; D011602:Psychophysiologic Disorders / Q000175:diagnosis* / Q000503:physiopathology / Q000523:psychology; D012815:Signal Processing, Computer-Assisted