Cited by 180Neural and Behavioral Psychology StudiesNeurotransmitter Receptor Influence on BehaviorMemory and Neural Mechanisms

Neural coding of distinct statistical properties of reward information in humans

Dreher, Jean-Claude, Kohn, Philip, Berman, Karen Faith·2006·Cerebral Cortex

Abstract

Brain processing of reward information is essential for complex functions such as learning and motivation. Recent primate electrophysiological studies using concepts from information, economic and learning theories indicate that the midbrain may code two statistical parameters of reward information: a transient reward error prediction signal that varies linearly with reward probability and a sustained signal that varies highly non-linearly with reward probability and that is highest with maximal reward uncertainty (reward probability = 0.5). Here, using event-related functional magnetic resonance imaging, we disentangled these two signals in humans using a novel paradigm that systematically varied monetary reward probability, magnitude and expected reward value. The midbrain was activated both transiently with the error prediction signal and in a sustained fashion with reward uncertainty. Moreover, distinct activity dynamics were observed in post-synaptic midbrain projection sites: the prefrontal cortex responded to the transient error prediction signal while the ventral striatum covaried with the sustained reward uncertainty signal. These data suggest that the prefrontal cortex may generate the reward prediction while the ventral striatum may be involved in motivational processes that are useful when an organism needs to obtain more information about its environment. Our results indicate that distinct functional brain networks code different aspects of the statistical properties of reward information in humans.

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  • The VS is consistently associated with all phases of reward processing, including detection, anticipation, and outcome.

    “The VS is a region that has been consistently associated with all phases of the processing of rewards, including detection, anticipation, and outcome (Bjork et al., 2004; Dreher et al., 2006; Galvan et al., 2006; Knutson et al., 2001; Schultz et al., 1992)”

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Authors
Dreher, J.-C., Kohn, P., & Berman, K. F.
Affiliations
National Institutes of Health (US)
Corresponding author
Dreher, Jean-Claude
Venue
Cerebral Cortex
Published
2005-07-20
Volume
16
Issue
4
Pages
561-573
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2023876982
Cited by
180
References
55
Citations by year
2025: 2 · 2024: 1 · 2023: 3 · 2022: 6 · 2021: 6 · 2020: 7 · 2019: 5 · 2018: 6 · 2017: 6 · 2016: 7 · 2015: 2 · 2014: 15 · 2013: 11 · 2012: 12
FWCI
7.41
Type
journal article
Language
en
Open access
closed
Locations
  • Cerebral Cortex (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
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
reward coding, reward prediction error, reward uncertainty, reward probability, midbrain, prefrontal cortex, ventral striatum, monetary rewards, motivation
MeSH terms
Adult, Conditioning, Operant, Discrimination Learning, Evoked Potentials, Female, Humans, Male, Mesencephalon, Psychomotor Performance, Reward

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