Cited by 279Neural and Behavioral Psychology StudiesNeurotransmitter Receptor Influence on BehaviorMemory and Neural Mechanisms

Differential activation of the caudate nucleus in primates performing spatial and nonspatial working memory tasks

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Levy, Richard, Friedman, Harriet R., Davachi, Lila, Goldman-Rakic, Patricia S.·1997·The Journal of Neuroscience

Abstract

The caudate nucleus is part of an anatomical network subserving functions associated with the dorsolateral prefrontal cortex (DLPFC). The aim of the present study was to investigate whether the metabolic activity in the striatum reflects specific changes in working memory tasks, which are known to be dependent on the DLPFC, and whether these changes reflect the topographic ordering of prefrontal connections within the striatum. Local cerebral glucose utilization (LCGU) rates were assessed in the striatum by the 14C-2-deoxyglucose method in monkeys that performed a spatial (delayed spatial alternation), a nonspatial (delayed object alternation) visual working memory task, or tasks that did not involve working memory, i.e., a visual pattern discrimination or sensorimotor paradigm. The results show a topographic segregation of activation related to spatial and nonspatial working memory, respectively. The delayed spatial alternation task increases LCGU rates bilaterally by 33-43% in the head of the caudate nucleus, where efferents from the dorsolateral prefrontal cortex project most densely. The delayed object alternation task enhances LCGU rates bilaterally by 32-37% in the body of the caudate nucleus, which is innervated by the temporal cortex. The visual pattern discrimination task similarly activated the body of the caudate, but in a smaller region and only in the right hemisphere. These findings provide the first evidence for metabolic activation of the caudate nuclei in working memory, supporting the role of this nucleus as a node in a neural network mediating DLPFC-dependent working memory processes. The double dissociation of activation observed suggests an anatomical and functional segregation of cortico-striatal circuits subserving spatial and nonspatial cognitive operations.

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  1. Brandt J (1991) Cognitive impairments in Huntington's disease: insights into the neuropsychology of the striatum. In: Handbook of neuropsy- chology (Boller F, Grafman J, eds), pp 241-264. Amsterdam: Elsevier.

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Authors
Levy, R., Friedman, H. R., Davachi, L., & Goldman-Rakic, P. S.
Affiliations
Yale University (US)
Venue
The Journal of Neuroscience
Published
1997-05-15
Volume
17
Issue
10
Pages
3870-3882
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1600793774
Cited by
279
References
64
Citations by year
2025: 3 · 2024: 6 · 2023: 5 · 2022: 5 · 2021: 7 · 2020: 4 · 2019: 7 · 2018: 3 · 2017: 8 · 2016: 11 · 2015: 7 · 2014: 8 · 2013: 12 · 2012: 11
FWCI
6.80
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
National Institute of Mental Health (MH 44866, MH38546, P50MH044866)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
caudate nucleus, working memory, spatial working memory, dorsolateral prefrontal cortex, striatum, local cerebral glucose utilization, visual pattern discrimination, sensorimotor tasks, corticostriatal circuits, temporal cortex, primate brain, metabolic activation
MeSH terms
Animals, Autoradiography, Caudate Nucleus, Conditioning, Psychological, Deoxyglucose, Macaca mulatta, Male, Memory, Pattern Recognition, Visual, Putamen, Spatial Behavior, Prefrontal Cortex

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