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Skills that people use every day, like talking, typing, writing, or walking, become automatic, and rely on the brain’s implicit muscle memory. This memory is largely unconscious but very important in completing everyday tasks without spending lots of effort thinking about how to interact with the world. Some cognitive disabilities result because of changes to the brain - like those caused by traumatic brain injuries (TBIs) or strokes. They can cause impairments to these functions. Relearning these simple, implicit skills can be incredibly challenging.

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