In the case of a double dissociation study involving Broca's and Wernicke's aphasia after focal brain lesions, which outcome demonstrates the independence of language production and comprehension?

💡 Explanation

Double dissociation requires demonstrating that damage to area A (Broca's) impairs function X (production) but not function Y (comprehension), and vice versa. Because selectively impaired production with intact comprehension supports their independence; therefore, B is correct, rather than correlated deficits or simultaneous recovery that would suggest functional dependence.

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