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In this study, we examined the effect of the 5-HT2A,C receptor agonist (+/-)-1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI) on locomotor activity and the head twitch response in rats by the repeated (twice daily for 4 days) subcutaneous administration of 0.9% saline (1 ml/kg) or (+/-)-3,4-Methylenedioxymethamphetamine (MDMA) (20 mg/kg), a compound that(More)
In this study, we examined the effect of the subcutaneous administration (twice daily for 4 consecutive days) of 3,4-methylenedioxymethamphetamine (MDMA, 20 mg/kg) or saline (1 ml/kg) on the response of rats to the behavioral effects of the 5-HT1A agonist (+/-)-8-hydroxy-(di-n-propylamino)tetralin (8-OH-DPAT) 30 days after the last saline or MDMA treatment.(More)
In the present study, we have shown that cocaine is significantly more potent in suppressing the firing rate of dopamine cells in the ventral tegmental area (VTA or A10) than in the substantia nigra pars compacta (SNC or A9). We have also determined the ability of several 5-HT3 receptor antagonists to alter the electrophysiological response of A10 dopamine(More)
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