Video 1 - Videoclip of VSS in stroke patient showing premature spill.
From the following article
Neurological disorders affecting oral, pharyngeal swallowing
Stephanie K. Daniels
GI Motility online (2006)
doi:10.1038/gimo34
Note that liquid material enters the pharynx and larynx prior to activation of swallow reflex. White out (screen obliteration) occurs during the actual swallow.
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