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Title: Medial prefrontal cortex dopamine controls the persistent storage of aversive memories
Authors: Gonzalez, María C.
Kramar, Cecilia P.
Tomaiuolo, Micol
Katche, Cynthia
Weisstaub, Noelia
Cammarota, Martín Pablo
Medina, Jorge H.
Keywords: inhibitory avoidance;conditioned taste aversion;D1/D5 receptor;VTA;system consolidation
Issue Date: 26-Nov-2014
Citation: Gonzalez MC, Kramar CP, Tomaiuolo M, Katche C, Weisstaub N, Cammarota M and Medina JH (2014) Medial prefrontal cortex dopamine controls the persistent storage of aversive memories. Front. Behav. Neurosci. 8:408. doi: 10.3389/ fnbeh.2014.00408
Abstract: Medial prefrontal cortex (mPFC) is essential for initial memory processing and expression but its involvement in persistent memory storage has seldom been studied. Using the hippocampus dependent inhibitory avoidance learning task and the hippocampus-independent conditioned taste aversion paradigm together with specific dopamine receptor agonists and antagonists we found that persistence but not formation of long-term aversive memories requires dopamine D1/D5 receptors activation in mPFC immediately after training and, depending on the task, between 6 and 12 h later. Our results indicate that besides its well-known participation in retrieval and early consolidation, mPFC also modulates the endurance of long-lasting aversive memories regardless of whether formation of the aversive mnemonic trace requires the participation of the hippocampus.
ISSN: 1662-5153
Appears in Collections:ICe - Artigos publicados em periódicos

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