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Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
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How do visual, auditory and motor dual-tasking each affect swallowing and chewing function?

Sena Nur Begen1,2, Selen Serel Arslan1

  • 1Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey.

Journal of Oral Rehabilitation
|May 24, 2024
PubMed
Summary
This summary is machine-generated.

Performing a second task simultaneously with swallowing and chewing impairs function. Dual-tasking negatively impacts swallowing and chewing efficiency, as well as visual and motor performance in healthy adults.

Keywords:
chewingdual‐taskdual‐task interactionreaction timeswallow

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Area of Science:

  • Neuroscience
  • Human Physiology
  • Cognitive Science

Background:

  • Performing concurrent tasks, known as dual-tasking, presents challenges, particularly when one task involves swallowing.
  • Understanding the impact of dual-tasking on essential functions like swallowing and chewing is crucial for maintaining health and safety.

Purpose of the Study:

  • To investigate the effects of visual, auditory, and motor dual-tasking on the swallowing and chewing capabilities of healthy young adults.
  • To quantify performance changes during simultaneous task execution compared to individual task performance.

Main Methods:

  • Healthy young adults underwent assessments for swallowing (dysphagia limit for water and nectar consistencies) and chewing (Test of Masticating and Swallowing Solids).
  • Secondary tasks included visual and auditory reaction time tests and a bilateral tapping task for motor performance.
  • Performance was evaluated under baseline (individual tasks) and dual-task conditions (simultaneous execution).

Main Results:

  • Dual-tasking significantly decreased the dysphagia limit for nectar consistency and increased chewing time.
  • Motor dual-tasking led to a significant increase in visual reaction time and tapping rate.
  • No significant differences were observed in the dysphagia limit for water consistency or auditory reaction time during dual-tasking.

Conclusions:

  • Simultaneous dual-tasking negatively affects both swallowing/chewing functions and associated cognitive/motor performances.
  • These findings highlight the potential risks of dual-tasking during eating and drinking.
  • The results can inform the development of interventions to support safe swallowing and chewing in daily life.