Motor control of jaw movements: An fMRI study of parafunctional clench and grind behavior

Wong, Donald; Džemidžić, Mario; Talavage, Thomas M.; Romito, Laura M.; Byrd, Kenneth E.

doi:10.1016/j.brainres.2011.01.096

Cited by 34 publications

(44 citation statements)

References 73 publications

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“…After cross-group comparisons, our results revealed increased activation pattern in the control group in the inferior parietal lobule, which was implicated as a possible role of sensorimotor integration during orofacial movements (Figure 3). Wong et al 12 concluded that the control group revealed activation areas in the supplementary motor area and inferior parietal lobule in patients with bruxism and the control group, similar to our study. 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.…”

Section: Discussionsupporting

confidence: 91%

“…[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. 12,14 In our study, we selected the bruxism group according to novel diagnostic criteria that were defined by the concensus that was chaired by Lobbezoo et al 17 in 2013.…”

Section: Discussionmentioning

confidence: 99%

“…11 Recently, several investigations about detecting activation during chewing in healthy subjects showed cortical activation mainly in bilaterally somatosensory (S1) and motor cortex (M1), secondary somatosensory (S2), premotor cortex, supplementary motor area, parietal cortex, insula, thalamus and cerebellum, which demonstrates a role for masticatory activity in maintaining the homoeostasis of the body and brain function. 10,12,13 There are several studies about bruxism and brain activity in literature. 12,14,15 Based on the recent idea of the influence of central mechanisms on bruxism, we aimed to investigate the functional differences between patients with bruxism diagnosed with the renovated diagnostic criteria and healthy subjects with 3.0-T fMRI.…”

Section: Introductionmentioning

confidence: 99%

“…10,12,13 There are several studies about bruxism and brain activity in literature. 12,14,15 Based on the recent idea of the influence of central mechanisms on bruxism, we aimed to investigate the functional differences between patients with bruxism diagnosed with the renovated diagnostic criteria and healthy subjects with 3.0-T fMRI.…”

Section: Introductionmentioning

confidence: 99%

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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: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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To see bruxism: a functional MRI study

Yılmaz

2015

Dentomaxillofacial Radiology

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“…These differences in activation during word generation w.r.t. jaw movement and rest and forward audio w.r.t reverse audio and rest concur with past research on fMRI (Gitelman et al 2005;Papathanassiou et al 2000;Wilke et al 2009;Wonga et al 2011;Yetkin et al 1995) and NIRS towards language studies (Bortfeld et al 2009;Herrmann et al 2003;Herrmann et al 2006;Kubota et al 2005;Kuwabara et al 2006;Quaresima et al 2002;Sato et al 1999). In addition, the lateralization studies ( Figure 5.10 and Figure 5.15) demonstrate that there is not only differences in activation in the fronto-temporal regions in response to word generation and word reception stimulus, but also the fact that the AL region is dominant during word generation and PL region is dominant during Word reception.…”

Section: Discussionsupporting

confidence: 87%

Funtional Near Infrared Spectroscopy Study of Language, Joint Attention and Motor Skills

Chaudhary¹

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Topology of the lateral visual system: The fundus of the superior temporal sulcus and parietal area H connect nonvisual cerebrum to the lateral occipital lobe

et al. 2023

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Background and Purpose Mapping the topology of the visual system is critical for understanding how complex cognitive processes like reading can occur. We aim to describe the connectivity of the visual system to understand how the cerebrum accesses visual information in the lateral occipital lobe. Methods Using meta‐analytic software focused on task‐based functional MRI studies, an activation likelihood estimation (ALE) of the visual network was created. Regions of interest corresponding to the cortical parcellation scheme previously published under the Human Connectome Project were co‐registered onto the ALE to identify the hub‐like regions of the visual network. Diffusion Spectrum Imaging‐based fiber tractography was performed to determine the structural connectivity of these regions with extraoccipital cortices. Results The fundus of the superior temporal sulcus (FST) and parietal area H (PH) were identified as hub‐like regions for the visual network. FST and PH demonstrated several areas of coactivation beyond the occipital lobe and visual network. Furthermore, these parcellations were highly interconnected with other cortical regions throughout extraoccipital cortices related to their nonvisual functional roles. A cortical model demonstrating connections to these hub‐like areas was created. Conclusions FST and PH are two hub‐like areas that demonstrate extensive functional coactivation and structural connections to nonvisual cerebrum. Their structural interconnectedness with language cortices along with the abnormal activation of areas commonly located in the temporo‐occipital region in dyslexic individuals suggests possible important roles of FST and PH in the integration of information related to language and reading. Future studies should refine our model by examining the functional roles of these hub areas and their clinical significance.

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Motor control of jaw movements: An fMRI study of parafunctional clench and grind behavior

Cited by 34 publications

References 73 publications

To see bruxism: a functional MRI study

To see bruxism: a functional MRI study

Funtional Near Infrared Spectroscopy Study of Language, Joint Attention and Motor Skills

Topology of the lateral visual system: The fundus of the superior temporal sulcus and parietal area H connect nonvisual cerebrum to the lateral occipital lobe

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