Abstract
The effect of housing conditions on sulpiride-induced increases in extracellular dopamine (DA) levels was investigated in the nucleus accumbens (NAC) of P rats. Rats were double-housed (DH) in plastic tubs, or single-housed (SH) in hanging wire cages for 12 weeks. Microdialysis in the NAC showed greater sulpiride-induced DA increases in the NAC of SH vs. DH rats, with no difference in basal levels. The data indicate that housing conditions can alter DA D 2 receptor function in the NAC.
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