Agraphia

a bearing on graphic aphasia, or, as it is more correctly designated, agraphia. Agraphia has been known for many years to be a frequent symptom in all the types of aphasia, but the question as to whether there was a type of aphasia which could be strictly called graphic aphasia without any other lesion is one that has been much discussed in recent years. In order to bring the subject properly before you, it will be necessary for me to shortly summarise what we know of aphasia as a whole and what part the symptom of agraphia plays in the manifestation of its different forms. Putting aside, in the meantime, graphic aphasia as a special form, it is now very generally believed that there are four great types of aphasia, viz :? (1) Auditory aphasia or word-deafness. The sensory aphasia of Wernicke due to a blotting-out of the auditory images of words, which are believed to be stored in the posterior ^ or ? of the first temporo-sphenoidal convolution on the left side.