TEANSFER FACTORS IN MAZE LEARNING 



345 



with extreme irregularities. It is to be observed that the par- 

 ticular "ups and downs" do not correspond well with those of 

 figure 5 (barring those for mazes numbered 4-5-6 and 9-10-11- 

 12), and they differ markedly, indeed, in the data for the indi- 

 vidual rats. Table 6 shows for this group, as table 2 did for 



/^sGvftfi 3 



TABLE 



NAMES OF 

 BLIND 



NAMES OF MAZES (CA . . .) 



group IV of the first series, a positive improvement in the form 

 of the development of a tendency not to re-enter a blind alley 

 previously entered on the same run. That this decrease in num- 

 ber of re-entrances is not due to the objective character of the 

 mazes used is suggested by the fact that, aside from this simi- 

 larity of general trend, the two tables are not alike. Outside of 



PSTCHOBIOLOGT, VOL. II, NO. 4 



