A man comes with aphasia. He is unable to name things and repetition is poor. However comprehension, fluency and understanding written words is unaffected. He is probably suffering from:
(A) Anomic aphasia (B) Broca's aphasia (C) Transcoical sensory aphasia (D) Conduction aphasia
(D) Ans: D. Conduction aphasia(Ref Harrison 19/e p 1 76, 18/e p302)Typical case of conduction aphasia with normal comprehension & fluency, but impaired naming & repetition.Conduction aphasia:Due to damaged arcuate fasciculus.Arcuate fasciculus:Connection between Wernicke's (language comprehension) & Broca's (Language production) areas.Hence, connection lost.Clinical features:Hallmark finding - Inability to repeat words.Comprehension & language expression intact.Inability to transfer understood word to Broca 's area to be expressed.Results in meaningful fluent speech & relatively good comprehension but very poor repetition.