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Conditioned place aversion produced by FG 7142 is attenuated by haloperidol.
1Département de Neurophysiologie et Biologie des Comportements, C.N.R.S., Strasbourg, France.
Psychopharmacology
|January 1, 1989
Summary
FG 7142, a benzodiazepine receptor inverse agonist, induced place aversion in rats. Dopamine receptors appear involved in this effect, as haloperidol reduced the aversion.
Area of Science:
- Neuroscience
- Pharmacology
- Behavioral Science
Background:
- Benzodiazepine receptor inverse agonists, such as FG 7142, can produce complex behavioral effects.
- Understanding the neurobiological underpinnings of these effects is crucial for psychopharmacology.
Purpose of the Study:
- To investigate the affective properties of FG 7142 using a place conditioning paradigm.
- To explore the role of dopamine receptors in the conditioned place aversion induced by FG 7142.
Main Methods:
- A place conditioning paradigm was employed to assess the rewarding or aversive properties of FG 7142.
- Rats received FG 7142 injections, and their preference for the drug-paired compartment was measured.
- The effect of haloperidol, a dopamine receptor antagonist, on FG 7142-induced place aversion was examined.
Main Results:
- FG 7142 administration (10 mg/kg) resulted in a significant conditioned place aversion.
- Pre-treatment with haloperidol (0.2 mg/kg) markedly attenuated the conditioned place aversion caused by FG 7142.
- Haloperidol alone did not produce any significant aversive or rewarding effects.
Conclusions:
- Benzodiazepine receptor inverse agonists like FG 7142 can induce conditioned place aversion.
- Dopamine receptors play a significant role in the learning or expression of this aversion.
- These findings highlight the involvement of dopaminergic pathways in the behavioral effects of benzodiazepine receptor inverse agonists.