Figure 1

Flank marking and grooming behavior (Mean ± SEM) following microinjection of arginine vasopressin (10 μM in 100 nl saline) in the anterior hypothalamus of golden hamsters treated with vehicle (Veh), clomipramine (Clom), desipramine (Des), and fluoxetine (Fluox). All animals were treated with 2 mg/day for 2 weeks.