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Neurological disorders provide insight into the functions of healthy brain regions from "summary" of Cognitive Neuroscience by Gazzaniga,Michael,Ivry,Richard B.,Mangun,George R.
Neurological disorders serve as a window into the complexities of brain function, revealing how specific regions contribute to cognitive processes. When examining individuals with conditions such as aphasia, Parkinson's disease, or traumatic brain injuries, researchers can identify which cognitive abilities are impaired and thus infer the roles of the affected areas. For instance, damage to Broca's area leads to difficulties in speech production, highlighting its critical function in language processing. The relationship between brain structure and behavior becomes clearer through the study of these disorders. Observing how deficits manifest in cognition or motor skills allows for a deeper understanding of how healthy brain regions operate. The brain's plasticity also plays a crucial role; recovery from injury often involves the recruitment of alternative pathways, suggesting that other areas can compensate for lo...
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