highly significantP = 0.0002
As for the emergence test, Rac1N showed a highly significant increase in the total distance traveled in both sessions of the test (genotype effect, F 1,24 = 25.94, P = 0.0002, Fig. 1 F and Supplementary Fig. 1 E ) and in the speed (genotype effect, F 1,24 = 15.7, P = 0.0006, data not shown).