The effects of orofacial sensory input on spontaneously occurring and apomorphine-induced rhythmical jaw movements in the anesthetized guinea pig
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Cited by (18)
Relationships between masticatory rhythmicity, body mass and cephalometrically-determined aesthetic and functional variables during development in humans
2014, Archives of Oral BiologyCitation Excerpt :However, evidence from several sources indicates that the neuromotor mechanisms that would seem most likely to be able to adjust TC to scale with MB in fact do not operate in a way that would allow the scaling to emerge. For instance, ketamine-anesthetized guinea pigs manifest spontaneous rhythmic jaw movements that occur near the natural rate at which the species masticates; however, loading the jaws of these animals with 50-g weights did not affect the frequency of the jaw movements.20 It was posited that spindle-mediated feedback served to increase muscle recruitment sufficient to counter the increased load so that jaw rhythmicity was unaffected.
Relationship between masticatory rhythm, body mass and mandibular morphology in primates
2013, Archives of Oral BiologyCitation Excerpt :The central pattern generator receives inputs from sensory receptors in the lips, oral mucosa, jaw-closing muscles and periodontal ligaments around the roots of the teeth, and the final motor commands are sent by the central pattern generator.4,6 Although the duration of a complete mastication sequence, and the parameters of the individual masticatory cycles, vary with food type, the masticatory rhythm produced by the central pattern generator is fixed within individual animals7 and within species.8–12 It has been found that the masticatory frequency decreases as Mb increases.13–19
Analysis of temporal variation in human masticatory cycles during gum chewing
2013, Archives of Oral BiologyCitation Excerpt :The neural control of masticatory movements appears to be partly controlled by central pattern generating (CPG) circuits located in the pontine and upper medullary brain stem. The basic movement patterns produced by the CPG are modifiable by sensory feedback and feed forward control during ongoing rhythmic movement sequences.6,7 The sensory modulation either accesses CPG circuits directly via afferent connections with brainstem circuitry, or indirectly via loops involving cerebral regions.7–10
Licking rate adaptations to increased mandibular weight in the adult rat
2004, Physiology and BehaviorGeneration of masticatory rhythm in the brainstem
1995, Neuroscience Research