Skip to main content
Journal cover image

Peering into the brain to predict behavior: Peer-reported, but not self-reported, conscientiousness links threat-related amygdala activity to future problem drinking.

Publication ,  Journal Article
Swartz, JR; Knodt, AR; Radtke, SR; Hariri, AR
Published in: NeuroImage
February 2017

Personality traits such as conscientiousness as self-reported by individuals can help predict a range of outcomes, from job performance to longevity. Asking others to rate the personality of their acquaintances often provides even better predictive power than using self-report. Here, we examine whether peer-reported personality can provide a better link between brain function, namely threat-related amygdala activity, and future health-related behavior, namely problem drinking, than self-reported personality. Using data from a sample of 377 young adult university students who were rated on five personality traits by peers, we find that higher threat-related amygdala activity to fearful facial expressions is associated with higher peer-reported, but not self-reported, conscientiousness. Moreover, higher peer-reported, but not self-reported, conscientiousness predicts lower future problem drinking more than one year later, an effect specific to men. Remarkably, relatively higher amygdala activity has an indirect effect on future drinking behavior in men, linked by peer-reported conscientiousness to lower future problem drinking. Our results provide initial evidence that the perceived conscientiousness of an individual by their peers uniquely reflects variability in a core neural mechanism supporting threat responsiveness. These novel patterns further suggest that incorporating peer-reported measures of personality into individual differences research can reveal novel predictive pathways of risk and protection for problem behaviors.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

NeuroImage

DOI

EISSN

1095-9572

ISSN

1053-8119

Publication Date

February 2017

Volume

146

Start / End Page

894 / 903

Related Subject Headings

  • Young Adult
  • Self Report
  • Problem Behavior
  • Personality Inventory
  • Personality
  • Peer Group
  • Neurology & Neurosurgery
  • Male
  • Magnetic Resonance Imaging
  • Humans
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Swartz, J. R., Knodt, A. R., Radtke, S. R., & Hariri, A. R. (2017). Peering into the brain to predict behavior: Peer-reported, but not self-reported, conscientiousness links threat-related amygdala activity to future problem drinking. NeuroImage, 146, 894–903. https://doi.org/10.1016/j.neuroimage.2016.10.003
Swartz, Johnna R., Annchen R. Knodt, Spenser R. Radtke, and Ahmad R. Hariri. “Peering into the brain to predict behavior: Peer-reported, but not self-reported, conscientiousness links threat-related amygdala activity to future problem drinking.NeuroImage 146 (February 2017): 894–903. https://doi.org/10.1016/j.neuroimage.2016.10.003.
Swartz, Johnna R., et al. “Peering into the brain to predict behavior: Peer-reported, but not self-reported, conscientiousness links threat-related amygdala activity to future problem drinking.NeuroImage, vol. 146, Feb. 2017, pp. 894–903. Epmc, doi:10.1016/j.neuroimage.2016.10.003.
Journal cover image

Published In

NeuroImage

DOI

EISSN

1095-9572

ISSN

1053-8119

Publication Date

February 2017

Volume

146

Start / End Page

894 / 903

Related Subject Headings

  • Young Adult
  • Self Report
  • Problem Behavior
  • Personality Inventory
  • Personality
  • Peer Group
  • Neurology & Neurosurgery
  • Male
  • Magnetic Resonance Imaging
  • Humans