192 



ARBOREAL MAN 



ordinated ideas," etc., it seems strange that its only 

 associated areas should be the " motor " centre (see Figs. 

 64-69, and 71). We have seen that there appears to be an 

 underlying functional order in the massing of the neopallial 

 areas, and it is therefore disconcerting to find this purely 

 ethical centre developed as an extension of, and associated 

 only with, the motor area. But we have already postu- 



FIG. 71. DIAGRAM OF THE LEFT CEREBRAL HEMISPHERE OF A 

 HUMAN BRAIN, TO SHOW THE ORDER OF ^REPRESENTATION 

 IN THE "PICTURED MOVEMENT" AREA. 



lated that this so-called motor area is a field devoted to 

 a very special motor function which we have attempted 

 to express as " pictured movements." We are assuming 

 that it is an area in which are lodged impressions of the 

 movements of which the animal has present cognizance, 

 a function which may be crudely expressed by saying 

 that it comprises the movements which an animal can 

 see and feel itself doing. It is, therefore, not so im- 

 probable that this new anterior silent area, which has 

 connection with no other neopallial areas, is simply an 

 extension from this specialized pictured movement area, 

 and probably an association area of it. It is not im- 



