Role of primary sensorimotor cortex and supplementary motor area in volitional swallowing: a movement-related cortical potential study

Satow, Takeshi; Ikeda, Akio; Yamamoto, Junichi; Begum, Tahamina; Duong, Thuy; Matsuhashi, Masao; Mima, Tatsuya; Nakagawa, Takashi; Baba, Koichi; Mihara, Tadahiro; Inoue, Yushi; Miyamoto, Susumu; Hashimoto, Nobuo; Shibasaki, Hiroshi

doi:10.1152/ajpgi.00323.2003

Cited by 73 publications

(61 citation statements)

References 43 publications

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“…Swallowing has been studied by recording the bereitschaftspotential (readiness potential), a surface negative slow potential shift that precedes movement and is an indicator of premotor planning, and so gives some information about the sequencing of events. The bereitschaftspotential occurred in the oral preparatory phase of swallows, and was apparent in the same lateralized region identified in the sensorimotor area associated with the tongue, pharynx, and esophagus (240) and in the prefrontal cortex and supplementary motor areas involved in movement planning (207). Repetitive TMS (1 Hz) was used to inhibit the pharyngeal area of the sensorimotor cortex, and swallowing ability was diminished without altering motor control of the hand or contralateral pharyngeal motor cortex.…”

Section: Swallowingmentioning

confidence: 98%

Coordination of Breathing with Nonrespiratory Activities

Bartlett¹,

Leiter²

2012

Comprehensive Physiology

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Many articles in this section of Comprehensive Physiology are concerned with the development and function of a central pattern generator (CPG) for the control of breathing in vertebrate animals. The action of the respiratory CPG is extensively modified by cortical and other descending influences as well as by feedback from peripheral sensory systems. The central nervous system also incorporates other CPGs, which orchestrate a wide variety of discrete and repetitive, voluntary and involuntary movements. The coordination of breathing with these other activities requires interaction and coordination between the respiratory CPG and those governing the nonrespiratory activities. Most of these interactions are complex and poorly understood. They seem to involve both conventional synaptic crosstalk between groups of neurons and fluid identity of neurons as belonging to one CPG or another: neurons that normally participate in breathing may be temporarily borrowed or hijacked by a competing or interrupting activity. This review explores the control of breathing as it is influenced by many activities that are generally considered to be nonrespiratory. The mechanistic detail varies greatly among topics, reflecting the wide variety of pertinent experiments.

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Section: Swallowingmentioning

confidence: 98%

Coordination of Breathing with Nonrespiratory Activities

Bartlett¹,

Leiter²

2012

Comprehensive Physiology

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“…Numerous techniques have been applied to investigate functional brain activity during swallowing (primarily in healthy individuals), including positron emission tomography (PET) [31][32][33][34], magnetoencephalography (MEG) [35][36][37][38][39], transcranial magnetic stimulation (TMS) [31,[40][41][42], and electroencephalography [43][44][45] (EEG). Functional MRI (fMRI) has been especially useful in studying brain activity during swallowing in normal individuals, mainly because of its high spatial and temporal resolution (ability to detect changes in an image across different spatial locations and over time) for various tissue types, its lack of use of radiation or need for other invasive procedures (needle injections), and its ability to obtain images in any plane [46].…”

mentioning

confidence: 99%

Normal Swallowing and Functional Magnetic Resonance Imaging: A Systematic Review

2007

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Unknowns about the neurophysiology of normal and disordered swallowing have stimulated exciting and important research questions. Previously, these questions were answered using clinical and animal studies. However, recent technologic advances have moved brain-imaging techniques such as functional magnetic resonance imaging (fMRI) to the forefront of swallowing neurophysiology research. This systematic review has summarized the methods and results of studies of swallowing neurophysiology of healthy adults using fMRI. A comprehensive electronic and hand search for original research was conducted, including few search limitations to yield the maximum possible number of relevant studies. The participants, study design, tasks, and brain image acquisition were reviewed and the results indicate that the primary motor and sensory areas were most consistently active in the healthy adult participants across the relevant studies. Other prevalent areas of activation included the anterior cingulate cortex and insular cortex. Review limitations and suggested future directions are also discussed. KeywordsDeglutition; Deglutition disorders; Functional magnetic resonance imaging An estimated 18 million adults have dysphagia, or swallowing disorders, in the United States [1]. Dysphagia is a condition that becomes more prevalent with increasing age and often results from neurologic damage or disorders such as stroke, Alzheimer's disease, and Parkinson's disease. As a result, much of the research on swallowing disorders has focused on understanding and delineating the neurophysiology of swallowing with the overall goal of increasing the efficacy and accuracy with which diagnosis and intervention procedures are employed.Data from clinical and animal studies have provided the earliest insight into the central control of swallowing. In particular, clinical studies have provided an evolving foundation of thought pertaining to the central control of swallowing. These investigations have characteristically started with a disordered neurologic group (i.e., poststroke population) and combined both anatomical brain-imaging techniques (still pictures of the brain) such as computerized tomography (CT) and/or magnetic resonance imaging (MRI) with a swallowing assessment to correlate damaged brain areas with the presence or type of dysphagia observed. The vast majority of clinical studies have focused on the effects of stroke on swallowing [2][3][4][5][6][7][8][9][10][11][12][13][14][15] This systematic review summarizes studies that have explored the neurophysiology of swallowing in healthy adults using fMRI. The goal of a systematic review is to gather and present objectively the current status of research in a particular area of interest. It presents an unbiased review of the relevant literature by describing the systematic methods for obtaining the relevant literature on this topic. Search Strategies ElectronicAn electronic database search was completed using Medline (Ovid and PubMed), CINAHL, DARE, ACP Journal Club, the Cochrane L...

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“…Thus, the characteristic of the MRCP associated with volitional swallowing may be explained in terms of the absence of NS'. Satow et al (2004) also proved by epicortical recording of MRCPs in the patients with epilepsy that the cerebral cortex does not play a significant role in postmovement processing of swallowing. Dysphagia is characterized by difficulty in swallowing (Bulat & Orlando, 2005).…”

Section: Features Of Cnv Associated With Swallowingmentioning

confidence: 96%