ArticleeLife2023
Elucidating a locus coeruleus-dentate gyrus dopamine pathway for operant reinforcement.
Article in eLife, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 15 citations in OpenAlex.
- A Drd1-cre mouse line with nucleus accumbens gene dysregulation exhibits blunted fentanyl seeking.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025Article
- Transient DREADD Manipulation of the Dorsal Dentate Gyrus in Rats Impairs Initial Learning of Place-Outcome Associations.Hippocampus · 2025Article
- A locus coeruleus to dorsal hippocampus pathway mediates cue-induced reinstatement of opioid self-administration in male and female rats.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Article
- Optical Intracranial Self-Stimulation (oICSS): A New Behavioral Model for Studying Drug Reward and Aversion in Rodents.International journal of molecular sciences · 2024Review
- Genetic disruption of dopamine β-hydroxylase dysregulates innate responses to predator odor in mice.Neurobiology of stress · 2024Article
- Dorsal hippocampus to nucleus accumbens projections drive reinforcement via activation of accumbal dynorphin neurons.Nature communications · 2024Article
- Genetic disruption of dopamine β-hydroxylase dysregulates innate responses to predator odor in mice.bioRxiv : the preprint server for biology · 2024Article
- Dopamine D2 receptors in hilar mossy cells regulate excitatory transmission and hippocampal function.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Declining locus coeruleus-dopaminergic and noradrenergic modulation of long-term memory in aging and Alzheimer's disease.Neuroscience and biobehavioral reviews · 2023Review
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
Animals can learn to repeat behaviors to earn desired rewards, a process commonly known as reinforcement learning. While previous work has implicated the ascending dopaminergic projections to the basal ganglia in reinforcement learning, little is known about the role of the hippocampus. Here, we report that a specific population of hippocampal neurons and their dopaminergic innervation contribute to operant self-stimulation. These neurons are located in the dentate gyrus, receive dopaminergic projections from the locus coeruleus, and express D1 dopamine receptors. Activation of D1 + dentate neurons is sufficient for self-stimulation: mice will press a lever to earn optogenetic activation of these neurons. A similar effect is also observed with selective activation of the locus coeruleus projections to the dentate gyrus, and blocked by D1 receptor antagonism. Calcium imaging of D1 + dentate neurons revealed significant activity at the time of action selection, but not during passive reward delivery. These results reveal the role of dopaminergic innervation of the dentate gyrus in supporting operant reinforcement.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.