Cited by 47Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on Behavior

Distribution of amygdala input to the nucleus accumbens septi: An electrophysiological investigation

Callaway, C. W., Hakan, R. L., Henriksen, S. J.·1991·Journal of Neural Transmission

Abstract

The nucleus accumbens septi (NAS) receives afferent input from the amygdala via the stria terminalis and from the hippocampus via the fimbria. Extracellular recordings from 196 NAS neurons in halothane-anesthetized rats revealed heterogeneous response patterns following stimulation of the amygdala. The observation that 30% of anterior NAS units but only 16% of posterior NAS units were responsive to amygdala stimulation suggested a topographical arrangement of amygdala efferents. Comparing the effects of amygdala and fimbria stimulation revealed that the two afferent pathways converge onto individual NAS neurons, but that the two sites of stimulation can differentially influence other neurons. The present results clarify the topographical distribution of amygdala input to the NAS, confirm that inputs from two limbic structures are integrated within the NAS, and further illustrate the electrophysiological heterogeneity of NAS neurons.

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Crossref · 10.1007/bf01253391

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Authors
Callaway, C. W., Hakan, R. L., & Henriksen, S. J.
Affiliations
Scripps Clinic (US)
Venue
Journal of Neural Transmission
Published
1991-10
Volume
83
Issue
3
Pages
215-225
ISSN
  • 0300-9564 (ISSN-L)
  • 1435-1463
OpenAlex
W1981544195
Cited by
47
References
26
Citations by year
2024: 1 · 2021: 1 · 2018: 1 · 2016: 1 · 2015: 1 · 2014: 1 · 2013: 1 · 2012: 4
FWCI
2.11
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neural Transmission (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5k02da000131-03)
  • National Institute on Alcohol Abuse and Alcoholism (AA-06420)
  • National Institute on Drug Abuse (DA00131)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
nucleus accumbens septi, amygdala, stria terminalis, fimbria, hippocampus, afferent input, topographic distribution, extracellular recording
MeSH terms
Action Potentials, Afferent Pathways, Amygdala, Animals, Electric Stimulation, Hippocampus, Male, Neurons, Nucleus Accumbens, Reaction Time, Rats

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