Cited by 384Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchNeurological disorders and treatments

Functional–anatomical implications of the nucleus accumbens core and shell subterritories

ZAHM, DANIEL S.·1999·Annals of the New York Academy of Sciences

Abstract

The nucleus accumbens, a major part of the ventral striatum, comprises numerous subterritories and compartments, of which the core and shell appear to be dominant. Shell exhibits greater chemical neuroanatomical diversity than core and is rather directly connected to it by a robust, feed-forward, striatopallido-thalamocortico-striatal pathway. Shell and extended amygdala share afferents, but the two are distinguished by their outputs, strongly toward cortex for shell and descendent toward brain stem effector sites for extended amygdala. Shell responds independently to stimulation by excitatory amino acids and dopamine, which are more mutually permissive in the core. Accordingly, the shell responds to a broad variety of physiological and pharmacological stimuli, including psychomotor and opioid drugs. Whereas locomotion and oro-facial movements are elicitable from the shell, lesions and blockade of EAA transmission in the core reduce locomotion. It is hypothesized that core-shell has a feed-forward functional organization.

Integrity signals

Registry

Crossref · 10.1111/j.1749-6632.1999.tb09264.x

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  • Some signals from the ventromedial striatum go back to the ventromedial striatum via the infralimbic cortex, and some reach the accumbens core via the prelimbic cortex and dorsal agranular insular cortex.

    “While some signals from the ventromedial striatum go back to the ventromedial striatum via the infralimbic cortex, some signals reach the accumbens core via the prelimbic cortex, as suggested by Zahm (1999), and via the dorsal agranular insular cortex, apparently participating in lateral information flow.”

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Authors
ZAHM, D. S.
Affiliations
Saint Louis University (US)
Corresponding author
ZAHM, DANIEL S.
Venue
Annals of the New York Academy of Sciences
Publisher
Wiley
Published
1999-06
Volume
877
Issue
1
Pages
113-128
ISSN
  • 0077-8923 (ISSN-L)
  • 1749-6632
OpenAlex
W2154129069
Cited by
384
References
87
Citations by year
2026: 4 · 2025: 14 · 2024: 11 · 2023: 18 · 2022: 8 · 2021: 7 · 2020: 8 · 2019: 20 · 2018: 11 · 2017: 10 · 2016: 8 · 2015: 18 · 2014: 18 · 2013: 20 · 2012: 16
FWCI
1.04
Type
journal article
Language
en
Open access
closed
Locations
  • Annals of the New York Academy of Sciences (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Neurological Disorders and Stroke (NS23805, R01NS023805)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
Keywords
nucleus accumbens, nucleus accumbens core, nucleus accumbens shell, ventral striatum, extended amygdala, dopamine, excitatory amino acids, locomotion, opioids
MeSH terms
Amygdala, Animals, Brain Stem, Humans, Models, Neurological, Neural Pathways, Nucleus Accumbens

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