Haggerty, Imitation in Monkeys. 



409 



TABLE 23. 

 No. 8 Imitating No. 4. 



General Summary of the Besults of the Screen Experiment. 



In the Screen Experiment, bnt one animal in five learned to get 

 food by seeing another animal get it. The behavior of the success- 

 ful individual was a clear case of imitation. The behavior of the 

 others agrees in that the first imitation tests show a decided increase 

 of attention to the screen, and more or less effort to get the food. 

 The same accentuation of attention occurred in the case of ISTo. 5 

 when a new animal was used. These cases also agree in that the 

 attention waned when the efforts to get food were unsuccessful, and 

 that in the end the interest in the screen seemed dependent on the 

 presence of an animal who could lift it. The behavior of No. 5 

 varied somewhat in that his interest in the screen persisted longer 

 than did that of the other animals. 



Although ISTo. 6 was the only animal wholly successful in imitation, 

 it is manifestly unfair to interpret the behavior of ISFo. 5 or ]^o. 2 

 as cases of total failure. Each of them did repeat, in part, the 

 behavior of the imitatee and this repetition seemed due to the action 

 of the imitatee. The fact is, that, if we arrange the behavior of 

 the several animals in the order in which the lesults have been re- 

 ported, we have a series of cases, in each member of Avhich, the 

 influence of the imitatee shows less than in the preceding member. 

 At the beginning, we have in ISTo. 6, successful imitation. At the 

 end, Xo. 8, who seemed stimulated only to look at the screen more 



