SHORT COMMUNICATION EFFECTS OF ANXIOLYTIC DRUGS ON SOME BEHAVIORAL CONSEQUENCES IN OLFACTORY BULBECTOMIZED RATS Joanna M. Wieroñska , Mariusz Papp , Andrzej Pilc Effects of anxiolytic drugs on some behavioral consequences in olfactory bulbectomized rats. J.M. WIEROÑSKA, M. PAPP, A. PILC. Pol. J. Pharma- col., 2001, 53, 517–525. The present study was designed to evaluate the effects of bulbectomy and acute administration of anxiolytic drugs (diazepam, 10 mg/kg; chlordia- zepoxide, 10 mg/kg) on the behavior of both sham-operated and olfactory bulbectomized rats in two tests predictive of anxiolytic activity: plus-maze test and Vogel’s conflict test. We investigated also the effect of flumazenil (10 mg/kg), a benzodiazepine receptors antagonist, both on control and drug- treated animals. We also evaluated behavior of animals in conditioned place aversion procedure. Our results show the decreased level of anxiety in bul- bectomized animals comparing with sham-operated rats. Anxiolytic drugs further deepen this effect. Key words: olfactory bulbectomy, anxiety, diazepam, chlordiazepoxide, flumazenil, plus-maze, Vogel’s test, conditioned place aversion correspondence