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https://hdl.handle.net/2440/43966
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Type: | Journal article |
Title: | Periodontal anaesthetisation decreases rhythmic synchrony between masseteric motor units at the frequency of jaw tremor |
Author: | Sowman, Paul Fredrick Ogston, Kirstin M. Turker, Kemal Sitki |
Citation: | Experimental Brain Research, 2007; 179 (4):673-682 |
Publisher: | Springer |
Issue Date: | 2007 |
ISSN: | 0014-4819 |
School/Discipline: | School of Molecular and Biomedical Science |
Statement of Responsibility: | Paul F. Sowman, Kirstin M. Ogston and Kemal S. Türker |
Abstract: | This study links the reduction in jaw physiological tremor around 8 Hz following periodontal mechanoreceptor (PMR) anaesthetisation to changes in coherence between masseteric motor unit discharges. We have recorded single motor unit activity from two separate sites in the right masseter muscle during a low level tonic contraction, both prior to and during anaesthetisation of the peri-incisal PMRs. Anaesthetisation of PMRs decreased coherent activity between motor units circa 8 Hz, and decreased synchrony between the same motor unit pairs. It is proposed that tremor-generating inputs that cause rhythmic synchronisation of masseteric motor units arise from, or are amplified by the PMRs. |
Keywords: | Physiological tremor; Motor unit; Trigeminal; Coherence |
Description: | The original publication is available at www.springerlink.com |
DOI: | 10.1007/s00221-006-0824-9 |
Published version: | http://www.springerlink.com/content/ft4541548376844v/ |
Appears in Collections: | Molecular and Biomedical Science publications |
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