Cited by 312Neural and Behavioral Psychology StudiesNeurotransmitter Receptor Influence on BehaviorMemory and Neural Mechanisms

Human striatal response to salient nonrewarding stimuli

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Zink, Caroline F., Pagnoni, Giuseppe, Martin, Megan E., Dhamala, Mukeshwar, Berns, Gregory S.·2003·The Journal of Neuroscience

Abstract

Although one proposed function of both the striatum and its major dopamine inputs is related to coding rewards and reward-related stimuli, an alternative view suggests a more general role of the striatum in processing salient events, regardless of their reward value. Here we define saliency as an event that both is unexpected and elicits an attentional-behavioral switch (i.e., arousing). In the present study, human striatal responses to nonrewarding salient stimuli were investigated. Using functional magnetic resonance imaging (fMRI), the blood oxygenation level-dependent signal was measured in response to flickering visual distractors presented in the background of an ongoing task. Distractor salience was manipulated by altering the frequency of distractor occurrence. Infrequently presented distractors were considered more salient than frequently presented distractors. We also investigated whether behavioral relevance of the distractors was a necessary component of saliency for eliciting striatal responses. In the first experiment (19 subjects), the distractors were made behaviorally relevant by defining a subset of them as targets requiring a button press. In the second experiment (17 subjects), the distractors were not behaviorally relevant (i.e., they did not require any response). The fMRI results revealed increased activation in the nucleus accumbens after infrequent (high salience) relative to frequent (low salience) presentation of distractors in both experiments. Caudate activity increased only when the distractors were behaviorally relevant. These results demonstrate a role of the striatum in coding nonrewarding salient events. In addition, a functional subdivision of the striatum according to the behavioral relevance of the stimuli is suggested.

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  1. Groves PM, Garcia-Munoz M, Linder JC, Manley MS, Martone ME, Young SJ (1995) Elements of the intrinsic organization and information process- ing in the neostriatum. In: Models of information processing in the basal ganglia (Houk JC, Davis LJ, Beiser DG, eds), pp 51-96. Cambridge, MA: MIT.
  2. Talairach J, Tournoux P (1988) Co-planar stereotaxic atlas of the human brain. Stuttgart, Germany: Thieme.

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Authors
Zink, C. F., Pagnoni, G., Martin, M. E., Dhamala, M., & Berns, G. S.
Affiliations
Georgia Institute of Technology (US)
Venue
The Journal of Neuroscience
Published
2003-09-03
Volume
23
Issue
22
Pages
8092-8097
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1660666227
Cited by
312
References
5
Citations by year
2026: 2 · 2025: 3 · 2024: 7 · 2023: 7 · 2022: 7 · 2021: 8 · 2020: 9 · 2019: 14 · 2018: 12 · 2017: 16 · 2016: 9 · 2015: 17 · 2014: 16 · 2013: 21 · 2012: 24
FWCI
7.35
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
Funders
  • National Institutes of Health
  • National Institute on Drug Abuse (K08 DA00367, K08DA000367)
  • National Institute of Biomedical Imaging and Bioengineering (R01EB002635)
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
striatum, salience, nucleus accumbens, caudate nucleus, dopamine, behavioral relevance, distractor frequency, reward coding
MeSH terms
Adult, Attention, Behavior, Caudate Nucleus, Corpus Striatum, Female, Fingers, Humans, Magnetic Resonance Imaging, Male, Nucleus Accumbens, Photic Stimulation, Reaction Time, Reference Values, Reward

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