Transcortical Motor Aphasia
Transcortical motor aphasia is a subtype of nonfluent aphasia in which repetition is preserved relative to impaired verbal output. Expressive language is effortful and halting, with disrupted prosody, paraphasic errors, and perseveration. Confrontation naming may be intact. Comprehension is better than production, with impairments primarily on complex language tasks.
Transcortical motor aphasia is a subtype of nonfluent aphasia, differentiated from other nonfluent aphasia types by the patient’s ability to repeat words and phrases in the absence of fluent extemporaneous speech.
Natural History, Prognostic Factors, and Outcomes
Transcortical aphasias are relatively rare, occurring in less than 10% of patients with stroke (Bakheit et al. 2007; Laska et al. 2001). When a patient presents with transcortical aphasia after a stroke, recovery is typically rapid. For nonvascular disorders, the prognosis for recovery depends on the etiology as...
References and Reading
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