TY - JOUR
T1 - Role of noradrenergic function in the opiate antagonist facilitation of spatial memory
AU - Fanelli, R. J.
AU - Rosenberg, R. A.
AU - Gallagher, M.
PY - 1985
Y1 - 1985
N2 - Animals previously trained to criterion on an eight-arm radial maze task received either bilateral 6-hydroxydopamine lesions of the dorsal noradrenergic bundle (DNB) or control surgery. Following a 3-week recovery period, the animals were trained on the same radial maze in two novel environments. By a within-subjects design, in one of these environments animals received posttraining systemic treatment with the opiate antagonist naloxone; in the other novel environment, they received vehicle injection. In animals that received control surgery, opiate antagonist treatment produced a reliable enhancement of performance. Although the DNB-lesion animals did not differ from the control-surgery animals under the saline treatment condition, denervation of forebrain norepinephrine (NE) was found to prevent the memory enhancing effect of posttraining naloxone administration. These results provide further support that enhanced retention obtained with opiate antagonist administration is dependent upon intact NE function.
AB - Animals previously trained to criterion on an eight-arm radial maze task received either bilateral 6-hydroxydopamine lesions of the dorsal noradrenergic bundle (DNB) or control surgery. Following a 3-week recovery period, the animals were trained on the same radial maze in two novel environments. By a within-subjects design, in one of these environments animals received posttraining systemic treatment with the opiate antagonist naloxone; in the other novel environment, they received vehicle injection. In animals that received control surgery, opiate antagonist treatment produced a reliable enhancement of performance. Although the DNB-lesion animals did not differ from the control-surgery animals under the saline treatment condition, denervation of forebrain norepinephrine (NE) was found to prevent the memory enhancing effect of posttraining naloxone administration. These results provide further support that enhanced retention obtained with opiate antagonist administration is dependent upon intact NE function.
UR - http://www.scopus.com/inward/record.url?scp=0022256325&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0022256325&partnerID=8YFLogxK
U2 - 10.1037/0735-7044.99.4.751
DO - 10.1037/0735-7044.99.4.751
M3 - Article
C2 - 3939666
AN - SCOPUS:0022256325
SN - 0735-7044
VL - 99
SP - 751
EP - 755
JO - Behavioral Neuroscience
JF - Behavioral Neuroscience
IS - 4
ER -