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ORIGINAL Investigation ARTICLEBEHAVIORAL NEUROSCIENCEpublished December .fnbeh.Updating Orexin 2 Receptor Agonist Epigenetics appetitive memory for the duration of reconsolidation window critical part of cuedirected behavior and amygdala central nucleusMegan E.Olshavsky , Bryan J.Song , Daniel J.Powell , Carolyn E.Jones , MarieH.Monfils, and Hongjoo J.Lee Department of Psychology, The University of Texas at Austin, Austin, TX, USA Center for Studying and Memory, The University of Texas at Austin, Austin, TX, USAEdited by Christa McIntyre, University of Texas, USA Reviewed by Jonathan L.C.Lee, Birmingham University, UK David J.Bucci, Dartmouth College, USA Simona Cabib, Universit’Sapienza’, Italy Correspondence Hongjoo J.Lee, Division of Psychology, The University of Texas at Austin, E.Dean Keaton, Cease A, Austin, TX , USA email [email protected] presented using a light cue followed by meals, some rats basically approach the foodcup (Nonorienters), though other folks very first orient towards the light in addition to displaying the foodcup approach behavior (Orienters).Cuedirected orienting may possibly reflect enhanced attentional andor emotional processing of the cue, suggesting divergent natures of cueinformation processing in Orienters and Nonorienters.The present studies investigate how variations in cue processing could possibly manifest in appetitive memory retrieval and updating using a paradigm created to persistently attenuate worry responses (Retrievalextinction paradigm; Monfils et al).1st, we examined whether the retrievalextinction paradigm could attenuate appetitive responses in Orienters and Nonorienters.Subsequent, we investigated when the appetitive memory could be updated utilizing reversal understanding (fear conditioning) in the course of the reconsolidation window (as opposed to repeated unreinforced trials, i.e extinction).Each extinction and new worry studying offered inside the reconsolidation window have been powerful at persistently updating the initial appetitive memory in the Orienters, but not the Nonorienters.Considering that conditioned orienting is mediated by the amygdala central nucleus (CeA), our final experiment examined the CeA’s role in the retrievalextinction approach.Bilateral CeA lesions interfered together with the retrievalextinction paradigmdid not avoid spontaneous recovery of foodcup approach.Together, our studies demonstrate the critical role of conditioned orienting behavior plus the CeA in updating appetitive memory for the duration of the reconsolidation window. appetitive.
