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Speech and language disorders

Another lesion that involves impairment in language production and processing is apraxia of speech, a difficulty synchronizing articulators essential for speech production. This type of lesion is located in the superior pre-central gyrus of the insula, and is more likely to occur in patients with Broca's aphasia. Lesions of the dominant ventral anterior nucleus may result in semantic paraphasias and difficulty in word-finding. Also, individuals with thalamic lesions experience difficulties linking semantic concepts with correct phonological representations in word production.