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  • 7 weeks ago
Scientists from Tohoku University discovered that activating the vagus nerve post-training enhanced the ability of mice to remember newly acquired motor skills over an extended period. The investigation concentrated on an eye-movement task reliant on the cerebellum, revealing that while immediate effects of stimulation were minimal, performance improved subsequently. Additionally, researchers noted rhythmic fluctuations in blood volume around the cerebellar flocculus after stimulation, with more pronounced vascular oscillations correlating with improved learning by Day 5. Published in iScience, these results indicate that body-to-brain signals following training could play a role in memory consolidation. Further exploration is necessary to see if these effects are applicable to humans.

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00:00Scientists say the brain may have a hidden window for learning, one that opens after training ends.
00:05Researchers at Tohoku University found that stimulating the vagus nerve after training helped mice retain newly learned movements.
00:13The vagus nerve connects the brain with organs throughout the body and plays a major role in regulating internal functions.
00:20In the study, mice learned an eye movement task involving the cerebellum, a region important for movement and adaptation.
00:27Importantly, stimulation was given only after training.
00:31It did not immediately improve the animal's performance.
00:34Instead, the benefit appeared over the following days, suggesting the stimulation may strengthen memory consolidation.
00:42Researchers also observed rhythmic changes in blood volume near the cerebellum after stimulation.
00:47Mice showing larger vascular changes tended to perform better on day five.
00:51The findings could reshape how scientists study learning, but researchers stress that the work is still limited to mice.
00:58Disclosure.
00:59This video contains stock footage and content created or enhanced using AI-assisted tools.

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