176 



John B. Calhoun 



ment, A, to E by the end of the initial 2 hours of exposure to E. After A, 

 motor activity persists on the average at a base line intensity, b, unless 

 some other new configuration E is encountered. Thus, DMA represents 

 increments of activity above b. 



In the alley, E can only include nonsocial physical stimuli. And yet in a 

 social milieu of others of an animal's own species, the responses of an as- 

 sociate also represent an E. Provided such a social E has not previously 



\ t 



Eg EjRemoval 



to home cage 



DMA DECLINE ONLY IN 

 HOME CAGE, THUS NO 

 A ADJUSTMENT TO E3 



Removal 



to home cage 



DMA DECLINE ONLY IN 

 HOME CAGE, THUS NO 

 A ADJUSTMENT TO E4 



Fig. 41. Adjustment to configurations of stimuli. See text for comment. 



been encountered or if the associate is in the nonresponsive, [p], refractory 

 state, then the latter's behavior, though perhaps experienced before, 

 amounts to a previously unencountered E in the sense that it does not 

 permit directed motor activity leading to a satisfactory refractory period 

 by the other individual involved in the encounter. For this reason, it will 

 here be presumed that the period of decline of hyperactivity is equivalent 

 to the Gap frustrating type refractory period involved in normal social 

 intercourse. 



