Cited by 64Neural and Behavioral Psychology StudiesDecision-Making and Behavioral EconomicsMemory and Neural Mechanisms

Inactivating anterior insular cortex reduces risk taking

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Ishii, Hironori, Ohara, Shinya, Tobler, Philippe N., Tsutsui, Ken-Ichiro, Iijima, Toshio·2012·The Journal of Neuroscience

Abstract

We often have to make risky decisions between alternatives with outcomes that can be better or worse than the outcomes of safer alternatives. Although previous studies have implicated various brain regions in risky decision making, it remains unknown which regions are crucial for balancing whether to take a risk or play it safe. Here, we focused on the anterior insular cortex (AIC), the causal involvement of which in risky decision making is still unclear, although human imaging studies have reported AIC activation in various gambling tasks. We investigated the effects of temporarily inactivating the AIC on rats' risk preference in two types of gambling tasks, one in which risk arose in reward amount and one in which it arose in reward delay. As a control within the same subjects, we inactivated the adjacent orbitofrontal cortex (OFC), which is well known to affect risk preference. In both gambling tasks, AIC inactivation decreased risk preference whereas OFC inactivation increased it. In risk-free control situations, AIC and OFC inactivations did not affect decision making. These results suggest that the AIC is causally involved in risky decision making and promotes risk taking. The AIC and OFC may be crucial for the opposing motives of whether to take a risk or avoid it.

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Authors
Ishii, H., Ohara, S., Tobler, P. N., Tsutsui, K.-I., & Iijima, T.
Affiliations
  • Tohoku University (JP)
  • University of Zurich (CH)
Venue
The Journal of Neuroscience
Published
2012-11-07
Volume
32
Issue
45
Pages
16031-16039
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2083426872
Cited by
64
References
52
Citations by year
2026: 5 · 2025: 5 · 2024: 2 · 2023: 4 · 2022: 4 · 2021: 5 · 2020: 4 · 2019: 8 · 2018: 3 · 2017: 3 · 2016: 6 · 2015: 6 · 2014: 7 · 2013: 2
FWCI
2.46
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • Research portal (Tilburg University) (publishedVersion)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
Japan Society for the Promotion of Science (19673002, #24120504)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Social Sciences › Decision Sciences › General Decision Sciences › Decision-Making and Behavioral Economics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
anterior insula, orbitofrontal cortex, risk preferences, risky decision making, risk-taking, gambling behavior, reward delay, reward magnitude, neural inactivation, rats
MeSH terms
Animals, Behavior, Animal, Cerebral Cortex, Cues, Decision Making, Gambling, Male, Motivation, Risk-Taking, Rats, Wistar, Rats

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