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The central amygdala recruits mesocorticolimbic circuitry for pursuit of reward or pain

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  • Shelley M. Warlow

    (University of Michigan
    University of California San Diego)

  • Erin E. Naffziger

    (University of Michigan)

  • Kent C. Berridge

    (University of Michigan)

Abstract

How do brain mechanisms create maladaptive attractions? Here intense maladaptive attractions are created in laboratory rats by pairing optogenetic channelrhodopsin (ChR2) stimulation of central nucleus of amygdala (CeA) in rats with encountering either sucrose, cocaine, or a painful shock-delivering object. We find that pairings make the respective rats pursue either sucrose exclusively, or cocaine exclusively, or repeatedly self-inflict shocks. CeA-induced maladaptive attractions, even to the painful shock-rod, recruit mesocorticolimbic incentive-related circuitry. Shock-associated cues also gain positive incentive value and are pursued. Yet the motivational effects of paired CeA stimulation can be reversed to negative valence in a Pavlovian fear learning situation, where CeA ChR2 pairing increases defensive reactions. Finally, CeA ChR2 valence can be switched to neutral by pairing with innocuous stimuli. These results reveal valence plasticity and multiple modes for motivation via mesocorticolimbic circuitry under the control of CeA activation.

Suggested Citation

  • Shelley M. Warlow & Erin E. Naffziger & Kent C. Berridge, 2020. "The central amygdala recruits mesocorticolimbic circuitry for pursuit of reward or pain," Nature Communications, Nature, vol. 11(1), pages 1-15, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16407-1
    DOI: 10.1038/s41467-020-16407-1
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