Short-latency afferent inhibition on cortical motor representation in healthy humans

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SAI magnitude appears dependent on anatomical proximity rather than homotopy, impacting muscle coordination.
Conditioning median nerve stimulation resulted in significant SAI for two hand muscles, with no notable difference between them.
Results indicate that sensory inputs can inhibit cortical outputs, thus influencing motor representation size.
Further understanding of SAI could enhance insights into sensorimotor integration and muscle coordination mechanisms.

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Observational analysis reveals SAI impact on cortical motor outputs in healthy adults, suggesting anatomical proximity is key.

Yuasa et al. (2025) studied this question.

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