Effects of tDCS on Swallowing Physiology and Lingual Pressures
Lindsay Griffin, PhD, CCC-SLP, Christian Sullivan, Erin Kamarunas, PhD, CCC-SLP
2024 ASHA Poster Presentation – Supplementary Material
Aims of Present Study
To investigate the immediate effects of anodal tDCS to the swallowing sensorimotor cortex on 1.) swallowing physiology, and 2.) lingual pressures (maximum isometric push; MIP) before, during, and after tDCS.
Study Inclusion/Exclusion Criteria

Participant Characteristics

Procedures

Results
- 2 of 4 participants, including the participant with dysphagia following stroke, demonstrated no changes to their swallowing physiology.
- 1 participant had changes to hyoid burst to UES opening, LVC duration, and SRT during or after tDCS.
- 1 participant had changes to UES duration and LVC duration after tDCS.
- 3 of 4 participants had a difference in their lingual pressures in the post-tDCS period compared to the tDCS period, indicating that changes to lingual strength or pressure generation may be appreciated after one session of anodal tDCS.
Single Case Graphs by Each Independent Variable for Each Participant
References
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