Cited by 339Neuroendocrine regulation and behaviorNeuroscience and Neuropharmacology ResearchNeural dynamics and brain function

Oxytocin enhances hippocampal spike transmission by modulating fast-spiking interneurons

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Owen, Scott F., Tuncdemir, Sebnem N., Bader, Patrick L., Tirko, Natasha N., Fishell, Gord, Tsien, Richard W.·2013·Nature

Abstract

Neuromodulatory control by oxytocin is essential to a wide range of social, parental and stress-related behaviours. Autism spectrum disorders (ASD) are associated with deficiencies in oxytocin levels and with genetic alterations of the oxytocin receptor (OXTR). Thirty years ago, Mühlethaler et al. found that oxytocin increases the firing of inhibitory hippocampal neurons, but it remains unclear how elevated inhibition could account for the ability of oxytocin to improve information processing in the brain. Here we describe in mammalian hippocampus a simple yet powerful mechanism by which oxytocin enhances cortical information transfer while simultaneously lowering background activity, thus greatly improving the signal-to-noise ratio. Increased fast-spiking interneuron activity not only suppresses spontaneous pyramidal cell firing, but also enhances the fidelity of spike transmission and sharpens spike timing. Use-dependent depression at the fast-spiking interneuron-pyramidal cell synapse is both necessary and sufficient for the enhanced spike throughput. We show the generality of this novel circuit mechanism by activation of fast-spiking interneurons with cholecystokinin or channelrhodopsin-2. This provides insight into how a diffusely delivered neuromodulator can improve the performance of neural circuitry that requires synapse specificity and millisecond precision.

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Authors
Owen, S. F., Tuncdemir, S. N., Bader, P. L., Tirko, N. N., Fishell, G., & Tsien, R. W.
Affiliations
  • Stanford Medicine (US)
  • New York University (US)
Corresponding author
Tsien, Richard W.
Venue
Nature
Published
2013-08
Volume
500
Issue
7463
Pages
458-462
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2008069212
Cited by
339
References
36
Citations by year
2026: 8 · 2025: 16 · 2024: 21 · 2023: 26 · 2022: 22 · 2021: 28 · 2020: 21 · 2019: 23 · 2018: 35 · 2017: 35 · 2016: 33 · 2015: 37 · 2014: 26 · 2013: 7
FWCI
51.39
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Institute of Mental Health (F31MH084430, MH071739, MH064070, R01MH071739, R37MH071739)
  • National Institute of Neurological Disorders and Stroke (NS024067, R01NS024067, R01NS074785)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
oxytocin, hippocampus, fast-spiking interneurons, signal-to-noise ratio, neuromodulation, synaptic depression, pyramidal neurons, cholecystokinin, channelrhodopsin-2, autism spectrum disorder, oxytocin receptor, inhibitory interneurons
MeSH terms
Action Potentials, Animals, Brain, Cholecystokinin, Glycine, Hippocampus, Interneurons, Neural Pathways, Synaptic Transmission, Oxytocin, Rhodopsin, Synapses, Threonine, Pyramidal Cells, Receptors, Oxytocin, Excitatory Postsynaptic Potentials, Feedback, Physiological, Mice, Rats

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