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Swallowing Lateralization: The Effects of Modified Dual-Task Interference

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Abstract

A modified dual-task paradigm was designed to learn whether swallowing functions are selectively mediated by the left or right hemisphere. Healthy right-handed men (N = 38) were studied using videofluoroscopy to examine continuous straw drinking at baseline and with three interference conditions (silent word repetition, line orientation, finger tapping). Results indicate that activation of both right and left hemispheres can interfere with some swallowing behaviors. Findings suggest possibly different roles of the two hemispheres in the mediation of swallowing and support the notion that specific components of swallowing may be preferentially mediated by the left versus the right hemisphere.

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Acknowledgments

This research was supported in part by the National Institutes of Health (NIH) National Institute of Deafness and Communication Disorders Grant DC00135 (ALF), the Tulane-Charity-LSU General Clinical Research Center Grant RR5096, and the Department of Veterans Affairs South Central MIRECC.

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Authors and Affiliations

  1. Research Service, Department of Veterans Affairs Medical Center, New Orleans, Louisiana, USA

    Stephanie K. Daniels PhD, April Fraychinaud MCD & Asha DePolo MCD

  2. Neurology Service, Department of Veterans Affairs Medical Center, New Orleans, Louisiana, USA

    Anne L. Foundas MD

  3. Department of Psychiatry and Neurology, Tulane University Health Sciences Center, New Orleans, Louisiana, USA

    Stephanie K. Daniels PhD, David M. Corey PhD & Anne L. Foundas MD

  4. Department of Psychology, Tulane University, New Orleans, Louisiana, USA

    David M. Corey PhD

Authors
  1. Stephanie K. Daniels PhD
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  2. David M. Corey PhD
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  3. April Fraychinaud MCD
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  4. Asha DePolo MCD
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  5. Anne L. Foundas MD
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Correspondence to Stephanie K. Daniels PhD.

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Daniels, S.K., Corey, D.M., Fraychinaud, A. et al. Swallowing Lateralization: The Effects of Modified Dual-Task Interference. Dysphagia 21, 21–27 (2006). https://doi.org/10.1007/s00455-005-9007-2

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  • DOI: https://doi.org/10.1007/s00455-005-9007-2

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