Fig. 2.

Rotational behavior (mean ± S.E.M.) after administration of D-amphetamine (5 mg/kg, i.p.) in rats with unilateral striatal lesions (n = 18) or sham lesions (n = 15). The left figure depicts total rotation; the right figure depicts net rotation (difference between positive clockwise turns and negative counter-clockwise turns). Injection occurs after a 10-min baseline, as indicated by the arrow. *p < 0.005 lesion vs. sham-lesion group.