PSYCH 161 Lecture Notes - Lecture 1: Temporal Lobe, Speech Perception, Psych
Document Summary
Pure word-deafness as the preceding discussion suggests probably results from the disconnexion of wernicke"s area from auditory stimulation. The normalcy of the patient"s speech testifies to the intactness of wernicke"s area. With a lesion in wernicke"s area proper not merely is verbal comprehension impaired, but speech is also impaired. (p. 286) Wernicke"s aphasia = word deafness + speech production problems. But we know that the receptive problems in wernicke"s aphasia and word deafness are not the same. Speech perception is bilaterally organized in the superior temporal lobe. Few unrelated errors (they are getting close) Word-level comprehension problem is not severe and includes a semantic component. Effects of superior temporal lobe lesions on word comprehension. 24 cases of left superior temporal lobe lesions. Is a speech perception deficit at the core of the receptive language dysfunction in. Chronic unilateral damage to stg/sts/mtg doesn"t cause severe word. Left hemisphere anesthesia produces complete speech arrest, but minimal auditory comprehension deficit.
