Cited by 102Memory and Neural MechanismsNeural and Behavioral Psychology StudiesAnxiety, Depression, Psychometrics, Treatment, Cognitive Processes

The human amygdala is involved in general behavioral relevance detection: evidence from an event-related functional magnetic resonance imaging Go-NoGo task

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Ousdal, O.T., Jensen, J., Server, A., Hariri, A.R., Nakstad, P.H., Andreassen, O.A.·2008·Neuroscience

Abstract

The amygdala is classically regarded as a detector of potential threat and as a critical component of the neural circuitry mediating conditioned fear responses. However, it has been reported that the human amygdala responds to multiple expressions of emotions as well as emotionally neutral stimuli of a novel, uncertain or ambiguous nature. Thus, it has been proposed that the function of the amygdala may be of a more general art, i.e. as a detector of behaviorally relevant stimuli [Sander D, Grafman J, Zalla T (2003) The human amygdala: an evolved system for relevance detection. Rev Neurosci 14:303-316]. To investigate this putative function of the amygdala, we used event related functional magnetic resonance imaging (fMRI) and a modified Go-NoGo task composed of behaviorally relevant and irrelevant letter and number stimuli. Analyses revealed bilateral amygdala activation in response to letter stimuli that were behaviorally relevant as compared with letters with less behavioral relevance. Similar results were obtained for relatively infrequent NoGo relevant stimuli as compared with more frequent Go stimuli. Our findings support a role for the human amygdala in general detection of behaviorally relevant stimuli.

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Authors
Ousdal, O. T., Jensen, J., Server, A., Hariri, A. R., Nakstad, P. H., & Andreassen, O. A.
Affiliations
  • Oslo University Hospital (NO)
  • University of Oslo (NO)
  • University of Pittsburgh (US)
Corresponding author
Andreassen, O.A.
Venue
Neuroscience
Publisher
Elsevier BV
Published
2008-10
Volume
156
Issue
3
Pages
450-455
ISSN
0306-4522 (ISSN-L)
OpenAlex
W2004180312
Cited by
102
References
45
Citations by year
2026: 1 · 2025: 3 · 2024: 4 · 2023: 4 · 2022: 4 · 2021: 4 · 2020: 5 · 2018: 3 · 2017: 2 · 2016: 3 · 2015: 7 · 2014: 8 · 2013: 9 · 2012: 15
FWCI
5.00
Type
journal article
Language
en
Open access
Locations
  • Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Universitetet i Oslo
  • Norges Forskningsråd (#167153/V50, #163070/V50, 167153)
  • National Institute of Mental Health (K01MH072837)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
Keywords
amygdala, go/no-go task, emotional salience, threat detection, stimulation frequency
MeSH terms
Adult, Amygdala, Decision Making, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Neuropsychological Tests, Oxygen, Pattern Recognition, Visual, Photic Stimulation, Reaction Time, Signal Detection, Psychological, Young Adult

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