Cited by 213Memory and Neural MechanismsNeurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology Research

Dopamine is necessary for cue-dependent fear conditioning

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Fadok, Jonathan P., Dickerson, Tavis M. K., Palmiter, Richard D.·2009·The Journal of Neuroscience

Abstract

Dopamine (DA) is implicated in many behaviors, including motor function, cognition, and reward processing; however, the role of DA in fear processing remains equivocal. To examine the role of DA in fear-related learning, dopamine-deficient (DD) mice were tested in a fear-potentiated startle paradigm. DA synthesis can be restored in DD mice through administration of 3, 4-dihydroxy-l-phenylalanine (l-Dopa), thereby permitting the assessment of fear processing in either a DA-depleted or -replete state. Fear-potentiated startle was absent in DD mice but could be restored by l-Dopa administration immediately after fear conditioning. Selective viral-mediated restoration of DA synthesis within the ventral tegmental area fully restored fear learning in DD mice, and restoration of DA synthesis to DA neurons projecting to the basolateral amygdala restored short-term memory but not long-term memory or shock sensitization. We also demonstrate that the DA D(1) receptor (D(1)R) and D(2)-like receptors are necessary for cue-dependent fear learning. These findings indicate that DA acting on multiple receptor subtypes within multiple target regions facilitates the stabilization of fear memory.

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Research works printed but not linked: 2

  1. Eyny YS Horvitz JC 2003 Opposing roles of D1 and D2 receptors in appetitive conditioning J Neurosci 23 1584 1587 12629161 PMC6741989
  2. Ralph RJ Varty GB Kelly MA Wang YM Caron MG Rubinstein M Grandy DK Low MJ Geyer MA 1999 The dopamine D2, but not D3 or D4, receptor subtype is essential for the disruption of prepulse inhibition produced by amphetamine in mice J Neurosci 19 4627 4633 10341260 PMC6782596

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Authors
Fadok, J. P., Dickerson, T. M. K., & Palmiter, R. D.
Affiliations
  • University of Washington (US)
  • Howard Hughes Medical Institute (US)
Venue
The Journal of Neuroscience
Published
2009-09-09
Volume
29
Issue
36
Pages
11089-11097
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2060210617
Cited by
213
References
67
Citations by year
2026: 6 · 2025: 15 · 2024: 12 · 2023: 13 · 2022: 10 · 2021: 13 · 2020: 10 · 2019: 18 · 2018: 13 · 2017: 8 · 2016: 19 · 2015: 15 · 2014: 9 · 2013: 9 · 2012: 15
FWCI
6.94
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institutes of Health
  • National Human Genome Research Institute (R25HG007153)
  • National Institute of General Medical Sciences (GM-07270, T32-GM07270, T32GM007270, R25GM058501)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
dopamine, fear memory, L-DOPA, ventral tegmental area, basolateral amygdala, dopamine D1 receptor, D2-like receptors, fear-potentiated startle, short-term memory
MeSH terms
Animals, Conditioning, Psychological, Cues, Dopamine, Fear, Female, Male, Mice, Inbred C57BL, Mice, Transgenic, Receptors, Dopamine, Reflex, Startle, Mice, Knockout, Mice

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