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Individual Differences in Amygdala Activity Predict Response Speed during Working Memory
Open accessAbstract
The human amygdala has classically been viewed as a brain structure primarily related to emotions and dissociated from higher cognition. We report here findings suggesting that the human amygdala also has a role in supporting working memory (WM), a canonical higher cognitive function. In a first functional magnetic resonance imaging (fMRI) study (n= 53), individual differences in amygdala activity predicted behavioral performance in a 3-back WM task. Specifically, higher event-related amygdala amplitude predicted faster response time (RT;r= −0.64), with no loss of accuracy. This relationship was not contingent on mood state, task content, or personality variables. In a second fMRI study (n= 21), we replicated the key finding (r= −0.47) and further showed that the correlation between the amygdala and faster RT was specific to a high working memory load condition (3-back) compared with a low working memory load condition (1-back). These results support models of amygdala function that can account for its involvement not only in emotion but also higher cognition.
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“These regions have been implicated in performance on the N‐Back previously (Dahlin, Neely, Larsson, Bäckman, & Nyberg, 2008; Kubat‐Silman, Dagenbach, & Absher, 2002; Schaefer et al., 2006; Takeuchi et al., 2010; Zou, Hong, Wang, Gao, & Yang, 2011).”
From Brain structure, working memory and response inhibition in childhood leukemia survivors (2017) · cites this paper as Schaefer et al., 2006
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Metadata
- Authors
- Schaefer, A., Braver, T. S., Reynolds, J. R., Burgess, G. C., Yarkoni, T., & Gray, J. R.
- Affiliations
- Yale University (US)
- Washington University in St. Louis (US)
- University of Leeds (GB)
- University of Colorado Boulder (US)
- Venue
- The Journal of Neuroscience
- Publisher
- Society for Neuroscience
- Published
- 2006-10-04
- Volume
- 26
- Issue
- 40
- Pages
- 10120-10128
- ISSN
- 0270-6474 (ISSN-L)
- 1529-2401
- PMC
- PMC1851922
- OpenAlex
- W1990528118
- Cited by
- 106
- References
- 58
- Citations by year
- 2026: 2 · 2025: 4 · 2024: 8 · 2022: 3 · 2021: 3 · 2020: 6 · 2019: 8 · 2018: 6 · 2017: 5 · 2016: 2 · 2015: 3 · 2014: 9 · 2013: 6 · 2012: 7
- FWCI
- 2.91
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health
- National Institute of Mental Health (R01MH066088, MH66088)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
- Keywords
- amygdala, working memory, individual differences, response speed, event-related potentials, 3-back task, working memory load, cognitive function, emotion and cognition
- MeSH terms
- Adolescent, Adult, Amygdala, Female, Humans, Individuality, Male, Memory, Photic Stimulation, Predictive Value of Tests, Psychomotor Performance, Reaction Time, Regression Analysis, Linear Models
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