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Related Experiment Videos

Associating resting-state connectivity with trait impulsivity.

Nicholas H Angelides1, Jayesh Gupta2, Timothy J Vickery2

  • 1Department of Psychology, University of California, Berkeley, CA, USA.

Social Cognitive and Affective Neuroscience
|April 13, 2017
PubMed
Summary
This summary is machine-generated.

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Resting-state brain connectivity between the orbitofrontal cortex and putamen predicts the fun-seeking trait of the Behavioral Activation System (BAS). This finding suggests neural synchrony in reward circuits influences personality characteristics like impulsivity.

Area of Science:

  • Neuroscience
  • Psychology
  • Behavioral Science

Background:

  • Psychometric research has identified stable traits linked to appetitive motivation and approach behavior.
  • The Behavioral Inhibition System/Behavioral Activation System (BIS/BAS) scales quantify these traits, but their underlying neural mechanisms remain unclear.
  • The ventral striatum and orbitofrontal cortex are recognized for reward processing, potentially linking to the BAS.

Purpose of the Study:

  • To investigate the neural mechanisms of BIS/BAS constructs by examining functional connectivity.
  • To determine if resting-state functional connectivity between specific brain regions predicts BIS/BAS scores.
  • To explore the relationship between reward-processing region synchrony and personality traits.

Main Methods:

Keywords:
BIS/BASconnectivityfMRIimpulsivityresting state

Related Experiment Videos

  • Utilized resting-state functional connectivity (rsFC) analysis.
  • Assessed participants using the Behavioral Inhibition and Activation Systems (BIS/BAS) Questionnaire.
  • Correlated rsFC between basal ganglia (caudate, putamen) and orbitofrontal cortex (OFC) regions with BIS/BAS scores.

    • Main Results:

    • A significant positive correlation was found between BAS-fun seeking and resting-state functional connectivity between the middle OFC and putamen.
    • This suggests spontaneous neural synchrony in reward-related areas is associated with specific personality traits.
    • No other significant correlations were reported between the examined ROIs and BIS/BAS components.

    Conclusions:

    • Resting-state functional connectivity between the middle OFC and putamen is a neural correlate of BAS-fun seeking.
    • This highlights the role of intrinsic brain network synchrony in shaping personality characteristics, particularly impulsivity.
    • Further research is needed to fully elucidate the neural basis of BIS/BAS constructs.