Cited by 41Neural and Behavioral Psychology StudiesNeurotransmitter Receptor Influence on BehaviorNeural dynamics and brain function

Encoding of reward expectation by monkey anterior insular neurons

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Mizuhiki, Takashi, Richmond, Barry J., Shidara, Munetaka·2012·Journal of Neurophysiology

Abstract

The insula, a cortical brain region that is known to encode information about autonomic, visceral, and olfactory functions, has recently been shown to encode information during reward-seeking tasks in both single neuronal recording and functional magnetic resonance imaging studies. To examine the reward-related activation, we recorded from 170 single neurons in anterior insula of 2 monkeys during a multitrial reward schedule task, where the monkeys had to complete a schedule of 1, 2, 3, or 4 trials to earn a reward. In one block of trials a visual cue indicated whether a reward would or would not be delivered in the current trial after the monkey successfully detected that a red spot turned green, and in other blocks the visual cue was random with respect to reward delivery. Over one-quarter of 131 responsive neurons were activated when the current trial would (certain or uncertain) be rewarded if performed correctly. These same neurons failed to respond in trials that were certain, as indicated by the cue, to be unrewarded. Another group of neurons responded when the reward was delivered, similar to results reported previously. The dynamics of population activity in anterior insula also showed strong signals related to knowing when a reward is coming. The most parsimonious explanation is that this activity codes for a type of expected outcome, where the expectation encompasses both certain and uncertain rewards.

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Crossref · 10.1152/jn.00282.2011

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  • Activity in areas subserving interoception, including the insula and ACC, shows patterns consistent with the representation of risk and risk and reward prediction errors.

    “Studies using this technique have demonstrated that activity in areas subserving interoception, including the insula and ACC, show patterns of activity consistent with the representation of risk (formally the variance associated with the outcome of a particular stimulus) and risk and reward prediction errors (Asahi et al., 2006; Mizuhiki et al., 2012; Paulus, Rogalsky, et al., 2003; Preuschoff et”

    From Atypical interoception as a common risk factor for psychopathology: A review (2021) · cites this paper as Mizuhiki et al., 2012

    The Discussion (page unavailable) reports that prior fMRI studies linked insular activity to risk, which supports part of the background claim. But this paper recorded neurons in monkey anterior insula, not fMRI activity in the insula and ACC; its Discussion says its own neuronal responses are unlikely to encode risk or reward prediction error. It does not establish the claimed risk-prediction-error pattern. (LLM, conf=0.86)

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Research works printed but not linked: 1

  1. Abeles M, Goldstein MH. Multiple spike train analysis. Proc IEEE 65: 762–773, 1997 [Google Scholar]

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Authors
Mizuhiki, T., Richmond, B. J., & Shidara, M.
Affiliations
  • University of Tsukuba (JP)
  • National Institutes of Health (US)
Corresponding author
Shidara, Munetaka
Venue
Journal of Neurophysiology
Published
2012-06-01
Volume
107
Issue
11
Pages
2996-3007
ISSN
  • 0022-3077 (ISSN-L)
  • 1522-1598
OpenAlex
W1964019124
Cited by
41
References
52
Citations by year
2026: 2 · 2025: 2 · 2024: 5 · 2023: 1 · 2022: 3 · 2021: 3 · 2020: 2 · 2019: 2 · 2018: 1 · 2017: 1 · 2016: 3 · 2015: 5 · 2014: 5 · 2013: 5 · 2012: 1
FWCI
2.62
Type
journal article
Language
en
Open access
Locations
  • Journal of Neurophysiology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Advanced Industrial Science and Technology
  • National Institutes of Health
  • Japan Society for the Promotion of Science (23700501, 22300138)
  • National Institute of Mental Health
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 › Neural dynamics and brain function
Keywords
anterior insula, reward anticipation, single-unit recording, reward prediction, uncertainty, outcome expectations, population activity, primate neurophysiology
MeSH terms
Animals, Cerebral Cortex, Color Perception, Macaca mulatta, Neurons, Photic Stimulation, Psychomotor Performance, Random Allocation, Reward, Anticipation, Psychological

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