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Study Reveals Brain's Resilience After Corpus Callosum Damage

10/31/2025

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Summary

Story summary

A study in the Proceedings of the National Academy of Sciences shows interhemispheric communication can persist when the corpus callosum is largely severed, based on six split-brain patients.
Researchers found that partial cuts preserved normal interhemispheric communication, while complete cuts reduced functional connectivity.
Using fMRI, the study shows partial-cut patients coordinated like healthy individuals, suggesting flexible brain reorganization with rehabilitation implications.

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Story summary

A study in the Proceedings of the National Academy of Sciences shows interhemispheric communication can persist when the corpus callosum is largely severed, based on six split-brain patients.
Researchers found that partial cuts preserved normal interhemispheric communication, while complete cuts reduced functional connectivity.
Using fMRI, the study shows partial-cut patients coordinated like healthy individuals, suggesting flexible brain reorganization with rehabilitation implications.