Non-invasive vagus nerve stimulation improves sensory performance in humans.

Methods for on demand treatment of impaired central sensory processing are scarce.Non-invasive tVNS on the neck improved auditory gap detection by 35% on average.tVNS on the neck improved visual discrimination performance by 20% on average.Neck and ear tVNS increased heart rate variability, corroborating vagal engagement.Neuromodulation via tVNS is a promising tool for rapidly treating impaired senses.