Abstract
The retrosplenial cortex (RSC) is involved in a range of cognitive functions. However, its precise involvement in memory processing is unknown. Pharmacological and behavioral experiments demonstrate that protein synthesis and c-Fos expression in the anterior part of RSC (aRSC) are necessary late after training to maintain for many days a fear-motivated memory. Long-lasting memory storage is regulated by D1/D5 dopamine receptors in aRSC and depends on the functional interplay between dorsal hippocampus and aRSC. These results suggest that the RSC recapitulates some of the molecular events that occur in the hippocampus to maintain memory trace over time.
Keywords:
c-Fos; dopamine; hippocampus; memory persistence; protein synthesis.
Copyright © 2013 Wiley Periodicals, Inc.
Publication types
-
Research Support, Non-U.S. Gov't
MeSH terms
-
2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine / pharmacology
-
Analysis of Variance
-
Animals
-
Anisomycin / pharmacology
-
Avoidance Learning / drug effects
-
Benzazepines / pharmacology
-
Cerebral Cortex / drug effects
-
Cerebral Cortex / physiology*
-
Dopamine Agents / pharmacology
-
Electroshock / adverse effects
-
Emetine / pharmacology
-
Gene Expression Regulation / drug effects
-
Hippocampus / drug effects
-
Hippocampus / physiology
-
Male
-
Memory, Long-Term / drug effects
-
Memory, Long-Term / physiology*
-
Oligonucleotides, Antisense / pharmacology
-
Protein Synthesis Inhibitors / pharmacology
-
Proto-Oncogene Proteins c-fos / metabolism
-
Rats
-
Rats, Wistar
-
Time Factors
Substances
-
Benzazepines
-
Dopamine Agents
-
Oligonucleotides, Antisense
-
Protein Synthesis Inhibitors
-
Proto-Oncogene Proteins c-fos
-
SCH 23390
-
2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine
-
Anisomycin
-
Emetine