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 OF VERBAL MEMOKY, THAT fS DEFECTS IN THE ASSOCIA- 

 TIONS OP IDEAL THINGS OR OF CONCEPTIONS WITH IDEAL WOIIDS. 



A. Amnesia Verbale. 



{a. Paralytic Variety ; h. Incoordinate Variety.) 



1. Diminished Excitability of the AHditorij 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 Commissures between Auditory and Visual Word- 



Centres. 



II. DEFECTS IN THE ASSOCIATION OF IDEAL WOUDS WITH VERBAL 

 MOVEMENTS FOR SPEECH AND WRITING, OR FOR EITHER OF THEM 

 SINGLE. 



B. Aphasia. 



5. Damage to first 2'> arts of outgoing tracks leading from Cerebral 



Word-Centres to left Corpus Striatum. 



C. Agraphia. 



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



Visual Word-Centre. 



D. Aphemia. 



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



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

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

 tlon. 



