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https://hdl.handle.net/2440/52265
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Type: | Journal article |
Title: | Investigation of an unusual, high-frequency jaw tremor with coherence analysis |
Author: | Sowman, P. Thompson, P. Miles, T. |
Citation: | Movement Disorders, 2008; 23(3):441-443 |
Publisher: | Wiley-Liss |
Issue Date: | 2008 |
ISSN: | 0885-3185 1531-8257 |
Statement of Responsibility: | Paul F. Sowman, Philip D. Thompson, Timothy S. Miles |
Abstract: | Normal physiological tremor of the jaw has a frequency of 6 to 8 Hz. A patient is described with jaw tremor at frequencies of 12 Hz during jaw movement and 15 Hz when the jaw was relaxed. The 15 Hz tremor was driven by synchronous, bilateral bursts of activity in the temporalis and masseter muscles, which alternated with digastric bursts. Coherence analysis indicated the tremor was highly correlated with both opening and closing muscle activity, and that the opening and closing muscles were about 180 degrees out of phase. The existence of two tremors with different, nonphysiological peak frequencies and the influence of attention, relaxation, and movement in switching from one tremor frequency to the other, suggest that more than one generator may be operating. |
Keywords: | Masticatory Muscles Jaw Humans Tremor Electromyography Attention Movement Adult Male |
Description: | The definitive version may be found at www.wiley.com |
DOI: | 10.1002/mds.21863 |
Published version: | http://dx.doi.org/10.1002/mds.21863 |
Appears in Collections: | Aurora harvest 5 Molecular and Biomedical Science publications |
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