D-Cycloserine, a partial NMDA agonist, significantly accelerated extinction of a cocaine-induced conditioned place preference (CPP) when rats were given systemic injections immediately, but not 4 h, after each extinction trial. Infusions directly into the basolateral amygdala had a similar effect. The facilitative effect of D-cycloserine on the extinction of appetitive conditioning is consistent with the idea of the formation of new learned associations during extinction. (c) 2006 Elsevier B.V. All rights reserved.
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Univ Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, Brazil
Izquierdo, I
;
Cammarota, M
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Univ Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, Brazil
Cammarota, M
;
Vianna, MRM
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Univ Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, Brazil
Vianna, MRM
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Bevilaqua, LRM
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Univ Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, Brazil
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Univ Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, Brazil
Izquierdo, I
;
Cammarota, M
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Univ Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, Brazil
Cammarota, M
;
Vianna, MRM
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Univ Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, Brazil
Vianna, MRM
;
Bevilaqua, LRM
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Univ Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Bioquim, ICBS, Ctr Memoria, BR-90035003 Porto Alegre, RS, Brazil