Behavioral consequences of the mGlu5 receptor antagonist MTEP in immature rats

► Anticonvulsant doses of MTEP (20 and 40 mg/kg i.p.) in immature rats only slightly affected sensorimotor performance. ► They did not affect habituation potency in repeated exposure to open field. ► They induced an anxiolytic-like effect in elevated plus maze. ► They did not affect an adaptive form of learning and memory in elevated plus maze.