A nonfluent (expressive) aphasia characterized by slow, halting speech with agrammatism (telegraphic, simplified sentence structure) and relatively preserved auditory comprehension. It typically results from a lesion in the dominant frontal lobe (inferior frontal gyrus), distinguishing it from fluent aphasias like Wernicke’s (where speech is fluent but lacks meaning). As an expressive language disorder, it directly impairs a speaker’s ability to produce grammatically complete and fluent utterances. Speech-language pathologists play a key role in assessing residual expressive language skills and designing targeted interventions to improve verbal output and functional communication.
Prater, Stephanie, Rakesh Anand, and S. Prasad. "Crossed Aphasia in a Patient with Anaplastic Astrocytoma of the Non-Dominant Hemisphere." Journal of Radiology Case Reports 11, no. 9 (2017).
