Compromised airway protection and aspiration of food and liquids are the most significant immediate clinical result of dysphagia. Some of the most common causes of oropharyngeal dysphagia are stroke, Parkinson’s diseases, cerebral palsy, and physical traumatic brain injuries. In the case of neurogenic dysphagia, swallowing difficulties occur due to lesions in disparate cortical and subcortical brain regions, or other structures of the central and peripheral nervous systems. ConclusionsĪccording to these results, we can tell that the parameter of head position should be considered in future investigations which utilize EEG signals during swallowing activity.ĭysphagia refers to any kind of swallowing disorder, and it may occur for many different reasons. Furthermore, we showed that swallowing in the chin-tuck head position affects brain networks in the Alpha and Gamma frequency bands. We showed that brain networks for swallowing in both head positions exhibit small-world properties. We investigated both the small-world properties of these brain networks and differences among the constructed brain networks for the two head positions during swallowing tasks. The time-frequency based synchrony measure was used to form brain networks. In this study, we collected EEG signals from 55 healthy adults while swallowing in the neutral and chin-tuck head positions. However, there are still open questions regarding whether brain activity for swallowing control is altered while performing this chin-tuck maneuver. The anatomical rationale and efficacy of the chin tuck in improving airway protection for some people with swallowing disorders have been well researched and established.
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