A fronto-parietal network for chewing of gum: a study on human subjects with functional magnetic resonance imaging

Takada, Toshihisa; Miyamoto, T.

doi:10.1016/j.neulet.2004.02.052

Cited by 90 publications

(55 citation statements)

References 14 publications

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“…It is reported that these areas play a role in motor attention, motor control of biting force and mediating somatosensory feedback where tactile proprioception is transferred. [25][26][27] The decreased activation in these areas compared with those of the control group might be owing to diminished proprioceptive awareness in patients with bruxism. 12 In previous studies that worked with bruxism, patient groups were selected by self-reports of tooth grinding/ clenching or questionnaires, which provide inadequate information for diagnosis of bruxism.…”

Section: Discussionmentioning

confidence: 95%

To see bruxism: a functional MRI study

Yılmaz

2015

Dentomaxillofacial Radiology

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Objective: Since the pathophysiology of bruxism is not clearly understood, there exists no possible treatment. The aim of this study is to investigate the cerebral activation differences between healthy subjects and patients with bruxism on behalf of possible aetiological factors. Methods: 12 healthy subjects and 12 patients with bruxism, a total of 24 right-handed female subjects (aged 20-27 years) were examined using functional MRI during tooth-clenching and resting tasks. Imaging was performed with 3.0-T MRI scanner with a 32-channel head coil. Differences in regional brain activity between patients with bruxism and healthy subjects (control group) were observed with BrainVoyager QX 2.8 (Brain Innovation, Maastricht, Netherlands) statistical data analysis program. Activation maps were created using the general linear model: single study and multistudy multisubject for statistical group analysis. This protocol was approved by the ethics committee of medical faculty of Kirikkale University, Turkey (02/04), based on the guidelines set forth in the Declaration of Helsinki. Results: The group analysis revealed a statistically significant increase in blood oxygenation level-dependent signal of three clusters in the control group (p , 0.005), which may indicate brain regions related with somatognosis, repetitive passive motion, proprioception and tactile perception. These areas coincide with Brodmann areas 7, 31, 39 and 40. It is conceivable that there are differences between healthy subjects and patients with bruxism. Conclusions: Our findings indicate that there was a decrease of cortical activation pattern in patients with bruxism in clenching tasks. This indicates decreased blood flow and activation in regional neuronal activity. Bruxism, as an oral motor disorder concerns dentistry, neurology and psychiatry. These results might improve the understanding and physiological handling of sleep bruxism.

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Section: Discussionmentioning

confidence: 95%

To see bruxism: a functional MRI study

Yılmaz

2015

Dentomaxillofacial Radiology

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“…Previous fMRI studies have determined that gumchewing significantly activates the sensorimotor area. 5,7,8 The activation of oral stereognosis in response to counting projections attached to a plate has been also reported. 11 Using fMRI, Corfield et al determined that tongue contraction was associated with significant signal increases in the sensorimotor cortex.…”

Section: Discussionmentioning

confidence: 91%

“…[5][6][7] However, little is known about the neural network in relation to oral stereognosis. 8 In the present study, using fMRI, we attempted to determine which cerebral areas are activated during oral stereognosis, and how this relates to manual stereognosis.…”

Section: Introductionmentioning

confidence: 99%

Comparison of cerebral activation involved in oral and manual stereognosis

Fujii

Takahashi

Toyomura

et al. 2011

Journal of Clinical Neuroscience

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“…In sheep, stimulation of the chewing area of the fronto-orbital cortex inhibits motoneurons in the medullary swallowing CPG [41]. In humans, fMRI during mastication activates orofacial sensorimotor and premotor cortex and both the posterior parietal and prefrontal cortical areas [42]. Conversely, by cooling and thereby inhibiting this region, Narita et al [43] were able to markedly suppress all mastication phases without adversely affecting swallow duration.…”

Section: Oral Preparatory-stage-related Cortical Activationmentioning

confidence: 99%

Supranuclear Control of Swallowing

2009

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Swallowing is an act requiring complex sensorimotor integration. Using a variety of methods first used to study limb physiology, initial efforts to study swallowing have yielded information that multiple cortical and subcortical regions are active participants. Not surprisingly, the regions activated appear to overlap those involved in both oral and nonoral motor behaviors. This review offers a perspective that considers the supranuclear control of swallowing in light of these physiological similarities.

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A fronto-parietal network for chewing of gum: a study on human subjects with functional magnetic resonance imaging

Cited by 90 publications

References 14 publications

To see bruxism: a functional MRI study

To see bruxism: a functional MRI study

Comparison of cerebral activation involved in oral and manual stereognosis

Supranuclear Control of Swallowing

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