n.s., not significant, iE3/Cre− versus iE3/Cre+, Student’s t test (A) and Mann-Whitney test (B and C). Data in this and subsequent figures represent mean ± SEM. (D–F) Same analyses as in (A), (B), and (C) except for comparing iE4/Cre− and iE4/Cre+ mice. ∗...