Figure 3.

Acquisition of lever press–nose poke performance Lever press–nose poke performance percentages over the course of five training sessions for each strain. Strain means presented in color-coding, see color bar on the right; color scale ranges from 0 to 100% correct performance. Strains are sorted based on their level of performance. A few of the mice did not complete the 5th session of training (which causes the drop in performance of lines 87 and 1), in which case we used the average of the last session of each mouse as the best available approximation for the final performance of the strain (Figure 2C).