Effects of the serotonergic agonist mCPP on male rats in the quinpirole sensitization model of obsessive–compulsive disorder (OCD)

Rationale The serotonergic agonist, meta-chlorophenylpiperazine (mCPP), produces inconsistent effects on obsessive–compulsive disorder (OCD) symptoms, perhaps because clinical studies have not utilized a homogenous OCD subgroup of patients.