Ashraf N H Gerges, Lynton Graetz, Susan Hillier, Jeric Uy, Taya Hamilton, George Opie, Ann-Maree Vallence, Felicity A Braithwaite, Saran Chamberlain, Brenton Hordacre
There is a growing interest in the clinical application of transcutaneous auricular vagus nerve stimulation (taVNS). However, its effect on cortical excitability, and whether this is modulated by stimulation duration, remains unclear. We evaluated whether taVNS can modify excitability in the primary motor cortex (M1) in middle-aged and older adults and whether the stimulation duration moderates this effect. In addition, we evaluated the blinding efficacy of a commonly reported sham method. In a double-blinded randomized cross-over sham-controlled study, 23 healthy adults (mean age 59...
April 11, 2024: Psychophysiology