Auditory Disturbances in Course of Aphasia

Abstract

Twenty-three cases of differnt types of aphasia have been studied with the aid of pure tone clinical audiometers and revealed the noticeable loss of hearing in sensory and motor aphasias while the patients with amnesic aphasia shows normal hearing. Hearing loss for high frequency in sensory aphasia has been identical but low and middle tone loss in motor aphasia has not been identical with the results in the paper of Alajouanine et al. Explaining the difference of results from the view point of terminology, the auther has intended to attribute the threshold rise to an inevitable dysfunctionning of primary auditory cortex in neighbourhood of Wernicke's and Broca's areas. Then, anatomo-clinical correlation and unit symptoms of speech disorders have been discussed.