Cited by 128Neurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology StudiesMemory and Neural Mechanisms

Responses of monkey midbrain dopamine neurons during delayed alternation performance

Ljungberg, Tomas, Apicella, Paul, Schultz, Wolfram·1991·Brain Research

Abstract

Cognitive deficits are important components of the parkinsonian syndrome. In order to investigate the role of dopamine (DA) neurons in cognitive functions, we recorded the electrical activity of midbrain DA neurons in a monkey performing in a spatial delayed alternation task. Triggered by a light, the animal reached toward one of two levers to receive a drop of liquid reward. The lever associated with reward was alternated after each correct movement. Of 88 DA neurons, 65% and 52% showed phasic responses to the trigger light and reward, respectively. By contrast, sustained delay-related activity described for striatum and frontal cortex was not observed, suggesting that the activity of DA neurons does not reflect mnemonic or preparatory representational task components. Rather, DA neurons respond to the salient attentional and motivating stimuli guiding task performance.

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Crossref · 10.1016/0006-8993(91)90816-e

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21 of 21 references verified0 citation errors · 0 not checkable

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  • Dopamine responses in elaborate tasks constitute standard reward prediction-error signals.

    “However, on closer inspection, dopamine responses in such elaborate tasks constitute standard reward prediction-error signals2,33,59,66,69,75,151–153.”

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Authors
Ljungberg, T., Apicella, P., & Schultz, W.
Affiliations
University of Fribourg (CH)
Corresponding author
Schultz, Wolfram
Venue
Brain Research
Publisher
Elsevier BV
Published
1991-12
Volume
567
Issue
2
Pages
337-341
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2000148387
Cited by
128
References
21
Citations by year
2026: 2 · 2025: 3 · 2024: 4 · 2023: 4 · 2022: 5 · 2020: 3 · 2019: 6 · 2018: 1 · 2017: 4 · 2016: 5 · 2015: 8 · 2014: 2 · 2013: 4 · 2012: 4
FWCI
0.92
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
dopaminergic neurons, midbrain, delayed alternation, spatial working memory, parkinsonism, cognitive impairment, attention, reward, primate behavior
MeSH terms
Animals, Cognition, Conditioning, Operant, Dopamine, Macaca fascicularis, Mesencephalon, Neurons, Photic Stimulation

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