Orosensory contributions to dysphagia: a link between perception of sweet and sour taste and pharyngeal delay time.
Pharyngeal delay is a significant swallowing disorder often resulting in aspiration. It is suspected that pharyngeal delay originates from sensory impairment, but a direct demonstration of a link between oral sensation and pharyngeal delay is lacking. In this study involving six patients with complaints of dysphagia, taste sensation of the oral tongue was measured and subsequently related to swallowing kinematics. It was found that a response bias for sour taste was significantly correlated with pharyngeal delay time on paste, highlighting oral sensory contributions to swallow motor dysfunctions. Investigating the precise nature of such a link between oral sensation and dysphagia would constitute a basis for understanding the disorder. The results of this study highlight oral sensory contributions to pharyngeal swallow events and provide impetus to examine this link in larger samples of dysphagic patients.
Department of Communication Sciences and Disorders, University of Wisconsin-Milwaukee, Wisconsin pauloski@uwm.edu.
Barbara R
BR
Pauloski
Department of Communication Sciences and Disorders, Northwestern University, Illinois.
Sazzad M
SM
Nasir
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003679:Deglutition / Q000502:physiology*; D003680:Deglutition Disorders / Q000503:physiopathology*; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010614:Pharynx / Q000503:physiopathology*; D013649:Taste / Q000502:physiology*; D055697:Taste Perception / Q000502:physiology*; D013997:Time Factors
Citric acid; deglutition; deglutition disorders; sucrose; taste perception