Cited by 171Neural and Behavioral Psychology StudiesMemory and Neural MechanismsNeurotransmitter Receptor Influence on Behavior

Basolateral amygdala to orbitofrontal cortex projections enable cue-triggered reward expectations

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Lichtenberg, Nina T., Pennington, Zachary T., Holley, Sandra M., Greenfield, Venuz Y., Cepeda, Carlos, Levine, Michael S., Wassum, Kate M.·2017·The Journal of Neuroscience

Abstract

To make an appropriate decision, one must anticipate potential future rewarding events, even when they are not readily observable. These expectations are generated by using observable information (e.g., stimuli or available actions) to retrieve often quite detailed memories of available rewards. The basolateral amygdala (BLA) and orbitofrontal cortex (OFC) are two reciprocally connected key nodes in the circuitry supporting such outcome-guided behaviors. But there is much unknown about the contribution of this circuit to decision making, and almost nothing known about the whether any contribution is via direct, monosynaptic projections, or the direction of information transfer. Therefore, here we used designer receptor-mediated inactivation of OFC→BLA or BLA→OFC projections to evaluate their respective contributions to outcome-guided behaviors in rats. Inactivation of BLA terminals in the OFC, but not OFC terminals in the BLA, disrupted the selective motivating influence of cue-triggered reward representations over reward-seeking decisions as assayed by Pavlovian-to-instrumental transfer. BLA→OFC projections were also required when a cued reward representation was used to modify Pavlovian conditional goal-approach responses according to the reward9s current value. These projections were not necessary when actions were guided by reward expectations generated based on learned action-reward contingencies, or when rewards themselves, rather than stored memories, directed action. These data demonstrate that BLA→OFC projections enable the cue-triggered reward expectations that can motivate the execution of specific action plans and allow adaptive conditional responding. SIGNIFICANCE STATEMENT Deficits anticipating potential future rewarding events are associated with many psychiatric diseases. Presently, we know little about the neural circuits supporting such reward expectation. Here we show that basolateral amygdala to orbitofrontal cortex projections are required for expectations of specific available rewards to influence reward seeking and decision making. The necessity of these projections was limited to situations in which expectations were elicited by reward-predictive cues. These projections therefore facilitate adaptive behavior by enabling the orbitofrontal cortex to use environmental stimuli to generate expectations of potential future rewarding events.

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Crossref · 10.1523/jneurosci.0486-17.2017

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  • The amygdala encodes reward value and deviations between expected and actual outcomes through its projections to the prefrontal cortex.

    “Reward value and deviations of expected and actual outcomes are encoded via the amygdala through its projections to the PFC (Lichtenberg et al., 2017; Wassum and Izquierdo, 2015).”

    From The effects of early life stress on reward processing (2018) · cites this paper as Lichtenberg et al., 2017

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Authors
Lichtenberg, N. T., Pennington, Z. T., Holley, S. M., Greenfield, V. Y., Cepeda, C., Levine, M. S., & Wassum, K. M.
Affiliations
University of California, Los Angeles (US)
Venue
The Journal of Neuroscience
Published
2017-07-25
Volume
37
Issue
35
Pages
8374-8384
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2736491203
Cited by
171
References
95
Citations by year
2026: 9 · 2025: 13 · 2024: 14 · 2023: 13 · 2022: 18 · 2021: 37 · 2020: 22 · 2019: 24 · 2018: 18 · 2017: 3
FWCI
10.51
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • National Institutes of Health (DA024635)
  • University of California, Los Angeles
  • National Institute on Drug Abuse (T32DA024635, R01DA035443)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
basolateral amygdala, orbitofrontal cortex, reward anticipation, Pavlovian-to-instrumental transfer, decision-making, reward seeking, goal-directed behavior, monosynaptic connectivity
MeSH terms
Animals, Conditioning, Operant, Cues, Decision Making, Extinction, Psychological, Male, Motivation, Neural Pathways, Reward, Prefrontal Cortex, Rats, Long-Evans, Rats, Anticipation, Psychological, Basolateral Nuclear Complex

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