618 THE CEREBRAL RELATIONS OF 



The principal defects which the following cases are 

 destined to illustrate, may with advantage be first tabu- 

 lated, so as to show their mutual relations both as Mental 

 and as Neurological Processes. 



I. DEFECTS OP VERBAL MEMORY, THAT IS DEFECTS IN THE ASSOCIA- 

 TIONS OF IDEAL THINGS OR OF CONCEPTIONS WITH IDEAL WORDS. 



A. Amnesia Verbale. 



(a. Paralytic Variety ; &. Incoordinate Variety.) 



1. Diminished Excitability of the Auditory Word- Centres. 



2. Defective Action in the Visual Word-Centres. 



3. Damage to Visual Word-Centres and of Afferent Fibres to Audi- 



tory Centres ; together with certain defects producing Inco- 

 ordinate Amnesia. 



4. Damage to Co7nmissures between Auditory and Visual Word- 



Centres. 



II. DEFECTS IN THE ASSOCIATION OF IDEAL WORDS WITH VERBAL 

 MOVEMENTS POR SPEECH AND WRITING, OR FOR EITHER OF THEM 

 SINGLY. 



B. Aphasia. 



5. Damage to first parts of outgoing tracks leading from Cerebral 



Word-Centres to left Corpus Striatum. 



C. Agraphia. 



6. Damage to first parts of outgoing tracks leading from the left 



Visual Word- Centre. 



D. Aphemia. 



7. Damage (a) to first parts of outgoing track leading from the left 



Auditory Word-Centre, or (b) to some lower parts of the 

 same track, or (c) to the actual Motor Centres for Articula- 

 tion. 



