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However, their effects on cortical neural responses remain unclear. This study aimed to investigate the cortical hemodynamic responses to swallowing across three head positions \u2014chin-down, chin-neutral, and chin-up \u2014 using functional near-infrared spectroscopy (fNIRS) in the bilateral precentral and postcentral gyrus regions of interest. Twenty-six healthy adults completed 32 swallows of 5\u00a0ml water in each head position. Results revealed short-term cortical activation increases for chin-up swallows compared to both chin-neutral (mean difference\u2009=\u20091.2, SE\u2009=\u20090.18, <jats:italic>p\u2009=<\/jats:italic>\u2009.048) and chin-down swallows (mean difference\u2009=\u20090.76, SE\u2009=\u20090.18, <jats:italic>p\u2009=<\/jats:italic>\u2009.009). These findings suggest that postural changes during swallowing induce immediate neural adaptations in people without swallowing difficulty. These modifications likely reflect the necessary sensory and neuromuscular adaptations required for safe swallowing in different head positions, with less hyolaryngeal movement needed for a chin-down swallow and more movement needed for a chin-up swallow. While challenging swallow conditions, like the chin-up, may offer promising therapeutic potential, caution is warranted considering the associated safety risk, and further investigation is needed. This study provides insights into the immediate effects of head positions on cortical activity during swallowing and highlights avenues for future research in dysphagia rehabilitation.<\/jats:p>","DOI":"10.1007\/s00221-024-06928-2","type":"journal-article","created":{"date-parts":[[2024,9,25]],"date-time":"2024-09-25T05:02:14Z","timestamp":1727240534000},"page":"2623-2631","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Short-term cortical activation changes associated with postural compensation in swallowing"],"prefix":"10.1007","volume":"242","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5350-9677","authenticated-orcid":false,"given":"Kelsey L.","family":"Murray","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seng Mun","family":"Wong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erin","family":"Kamarunas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,9,25]]},"reference":[{"issue":"3","key":"6928_CR1","doi-asserted-by":"publisher","first-page":"785","DOI":"10.1002\/lio2.799","volume":"7","author":"ZS Abraham","year":"2022","unstructured":"Abraham ZS, Kahinga AA (2022) Utility of reflux finding score and reflux symptom index in diagnosis of laryngopharyngeal reflux disease. 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