Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Transcortical sensory aphasia
Introduction
Background
Transcortical Sensory Aphasia, or TSA, is a type of Aphasia where sufferers have poor comprehension, but have fluent, grammatical speech. Patients can communicate well and are capable of good repetition. The main problem lies within the brain in a region known as the Temporal-occipital-parietal junction, located behind Wernicke’s area. This disruption causes TSA sufferers to have Semantic paraphasia wherein aphasics do not use the correct word, but use another word of similar content (ie. Apple is mistaken for Orange, Paper is mistaken for Pencil, etc.) Lesions of the left posterior temporo-occipital lobe associated.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]