(A) Graph of the max rotational speed on the rotarod before fall for adult 5-ht1d+/+ mice and 5-ht1d−/− mice (Mean ± SEM, 2-way ANOVA, p=0.58, n=10 5-ht1d+/+mice and n=10 5-ht1d−/− mice). (B) Hind limb slips when running over a 12 mm beam (left) and time spent crossing the beam (right) of 5-ht1d+/+ mice and 5-ht1d−/− mice (Mean ± SEM, students t-test, p = 0.040 (slips), p = 0.99 (time) n=8 5-ht1d+/+mice and n=7 5-ht1d−/− mice). (C) Time spent climbing onto a horizontal hanging steel wire with the hind paws in 5-ht1d+/+ (black) and 5-ht1d−/− (white) mice (Chi-square test, p = 0.037, n=10 5-ht1d+/+ mice and n=9 5-ht1d−/− mice).