Brain Res Bull. 1991 Nov;27(5):743-6. doi: 10.1016/0361-9230(91)90057-q.
Brain research bulletin
G J Mogenson, M Wu
PMID: 1684529 DOI: 10.1016/0361-9230(91)90057-q
Locomotor activity measured in an open-field apparatus was increased by adding partitions to enhance exploratory locomotion and by injecting amphetamine into the nucleus accumbens. Administration of the dopamine D2 agonist, quinpirole, into the nucleus accumbens reduced significantly both exploratory and amphetamine-elicited locomotion. It is suggested that these effects of quinpirole are mediated by different presynaptic mechanisms.