The cholinergic and dopaminergic systems of the prelimbic sector of frontal cortex and memory in the rat
Braz. j. med. biol. res
; 22(9): 1155-8, 1989. tab
Article
em En
| LILACS
| ID: lil-83194
Biblioteca responsável:
BR26.1
ABSTRACT
Rats were trained to perform delayed non-matching to sample (a working/representational memory task) and visual discrimination(a reference/dispositional memory task) in a T-maze, and implanted bilaterally with cannulae in the prelimbic cortex. The rats were tested postoperatively after bilateral 1 - micronl injections of vehicle (Krebs-Ringer), sulpiride (10 microng/micronl) or scopolamine (18 microng/micronl). Sulpiride had no effect on the performance of either task, whereas scopolamine interfered only with the performance of delayed non-matching to sample. We conclude that dopaminergic mechanisms in the prelimbic cortex are not involved in either type of memory and that cholinergic, but not dopaminergic, mechanisms are important for working/representational memory process
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Bases de dados:
LILACS
Assunto principal:
Escopolamina
/
Sulpirida
/
Lobo Frontal
/
Memória
Limite:
Animals
Idioma:
En
Revista:
Braz. j. med. biol. res
Assunto da revista:
BIOLOGIA
/
MEDICINA
Ano de publicação:
1989
Tipo de documento:
Article
/
Congress and conference
/
Project document