1. The Social Use of Space 



137 



The following summary of presumed relationships may serve as a basis 

 for evaluating the consequences of change in the components of ju and m'- 



= Increase in discriminatory capacity 



= Impeded synaptic transmission 



= Increased duration and intensity of be- 

 haviors, or 

 Increased memory storage of social stimuli 

 permitting hallucinated interactions which 

 indicate increase in cortical mass 



Decrease in Increase in 

 d d' 



= Decreased discriminatory capacity (i.e., 

 less selection of stimuli passing the 

 "filter") 



V v' = Enhanced synaptic transmission 



A A' = Decreased duration and intensity of be- 



havior, or decreased memory storage of 

 stimuli which are available for producing 

 hallucinated social interactions which in- 

 dicates decrease in cortical mass 



These relationships represent intuitive logical deductions, d' and A' 

 serve as fairly satisfactory first approximations. With progressive social 

 evolution, d and A generally increase. Along with this trend, discriminatory 

 capacity increases, cortical mass increases, and ability to maintain a be- 

 havior for longer periods of time increases, all of which tend to harmonize 

 with the model. However, I am less satisfied with my formulation of v' 

 (Section XIII, A, 1). The reason for this opinion is that with advancing 

 social evolution there presumably arises an increase in Vi, that sensory ex- 

 tension of the seK to produce psychological contact before bodily contact. 

 This should produce the opposing phenomenon of impeded synaptic trans- 

 mission. For the present, I can see no rational basis for reconciling impeded 

 synaptic transmission with social advances. 



v' merely connotes alteration of sensory perceptions of others involving 

 some distance between the two individuals concerned. My supposition 

 that alteration of synaptic transmission subserves v' may well be wrong. 

 The important point for the present is simply recognition of the likelihood 

 of some such mechanism whose evolution is influenced by social conditions. 



