Why does a patient with transcortical motor aphasia, resulting from damage surrounding Broca's area, exhibit difficulty in initiating speech despite relatively intact language comprehension?

💡 Explanation

Transcortical motor aphasia results from damage disconnecting Broca's area from the supplementary motor area (SMA), which initiates motor programs for speech, because the SMA cannot be properly activated. Therefore, speech initiation is impaired, rather than comprehension deficits arising directly from Broca's area damage.

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