Vagus Nerve Stimulation Could Help New Skills Stick
Researchers at Tohoku University have discovered that stimulating the vagus nerve in mice after training can significantly improve long-term motor skill retention. The study suggests that this process may be mediated by rhythmic changes in blood vessels within the brain.
Why it matters
This finding could lead to new therapeutic applications for Vagus Nerve Stimulation (VNS) to accelerate learning and rehabilitation for patients with motor impairments.
Why do some new skills seem to click almost instantly while others remain frustratingly difficult even after repeated practice? The difference may involve more than talent or effort. It may also depend on whether the brain is in the right condition to turn practice into lasting learning.
Learning does not happen independently of the rest of the body. Internal organs constantly send information to the brain through the vagus nerve, one of the nervous system's major communication pathways. Researchers at Tohoku University who study super network brain physiology have now shown in mice that stimulating this nerve after training can strengthen long term motor learning. Their findings point to a previously overlooked role for communication from the body to the brain in helping new skills persist.
The findings were published in iScience on August 25, 2026.
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