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Study design

Engineers built a battery-free transcranial direct-current stimulation system powered by radiative radio-frequency energy. They evaluated electrical output as mice moved freely in a cage, then stimulated the secondary motor cortex to test for a behavioral effect.

What the findings show

The device maintained regulated output across most of the cage-scale test area despite changes in position and orientation. Targeted stimulation of the mouse secondary motor region reliably induced circling behavior, showing that the wireless system could deliver a functional stimulus in freely moving animals.

Limits

This is an engineering and animal study. Brief output drops occurred with abrupt posture or orientation changes, and chronic performance was not established. The findings do not demonstrate a human device, cognitive benefit, or clinical treatment.

This sourced news summary and translation were prepared with AI assistance. Source links, the news date and research limitations are disclosed; this is not a claim of independent medical expert review. News production method.

Sources

Research news is not medical advice or a recommendation to use a substance. Read findings in the context of the study design, participants and limitations. Editorial standards.

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