Research Paper Volume 11, Issue 14 pp 4836—4857

Effects of transcutaneous vagus nerve stimulation in individuals aged 55 years or above: potential benefits of daily stimulation

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Figure 9. LF/HF ratio values during visit 1 (A) and visit 2 (B) for each non-responder during baseline, tVNS and recovery. Dashed black line indicates the group mean.