The figures in this table represent the total number of right 

 and of wrong choices during the training. The improvement 

 in discrimination and the stage of success finally attained are 

 shown in the curves of fig. 4. The results for one mouse are pre- 

 sented as typical. On the axes of ordinates are represented the 



Fig. 4 Curves of learning. Number of errors made daily is represented on 

 the axis of ordinates. Number of days is represented on the axis of abscissas. 

 Lower curve is the error curve for one mouse in red-blue discrimination. Upper 

 curve is the curve of dissociation and association for the same mouse. 



