Studying the brain (HT ONLY)

The complexity and delicacy of the brain make investigating and treating brain disorders difficult. Brain surgery is risky and may cause side effects or further damage, and brain-damaged patients may not be able to consent.
Neuroscientists have mapped the regions of the brain to particular functions by studying patients with brain damage, using non-invasive techniques, such as electrically stimulating different parts of the brain, and using MRI scanning techniques.

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