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How can doctors learn more about stroke patients by studying these impairments? - what is stroke more condition_symptoms

A stroke is caused by a blockage of blood flow to the brain. Consequently, part of the brain does not receive enough oxygen. If a person has a life of movement, there are often gaps in their motor or sensory neurons. What a blow on the left side of the brain, the cause of the damage in the right part of the body? Doctors often use patients as a model for mapping the brain. As doctors, you can learn more about the brain by studying the changes in these patients?