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Related Experiment Videos

Adolescents' brain-autonomic coupling during emotion processing.

David G Weissman1, Amanda E Guyer2, Emilio Ferrer3

  • 1Department of Psychology, University of California, Davis, CA, USA; Center for Mind and Brain, University of California, Davis, CA, USA.

Neuroimage
|September 7, 2018
PubMed
Summary
This summary is machine-generated.

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Adolescent autonomic nervous system (ANS) activity during emotional processing is linked to brain activity. Decreased parasympathetic nervous system (PNS) activity correlated with ventromedial prefrontal cortex (vmPFC) activation, while increased sympathetic nervous system (SNS) activity linked to the hippocampus.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Psychophysiology

Background:

  • Autonomic nervous system (ANS) activity is crucial for emotion processing, involving the limbic system and medial prefrontal cortex.
  • Adolescents exhibit heightened neural and physiological sensitivity to emotional stimuli, yet brain-ANS integration remains understudied in this age group.

Purpose of the Study:

  • To investigate the relationship between parasympathetic nervous system (PNS) and sympathetic nervous system (SNS) activity and brain activity during emotional face processing in adolescents.
  • To explore how specific ANS measures, respiratory sinus arrhythmia (RSA) for PNS and skin conductance responses (SCRs) for SNS, relate to neural activation patterns.

Main Methods:

  • Utilized functional magnetic resonance imaging (fMRI) and simultaneous electrocardiography and skin conductance recordings in 135 adolescents (ages ~17).
Keywords:
Neurovisceral integrationParasympatheticSomatic markerSympatheticfMRI

Related Experiment Videos

  • Employed linear mixed-effect modeling to analyze the association between changes in RSA (PNS) and SCRs (SNS) with neural activity during an emotional faces task.
  • Examined coupling between the left hippocampus and SCRs, and vmPFC and RSA, to predict baseline ANS activity.

    • Main Results:

    • Reduced PNS activity (RSA withdrawal) was associated with increased activation in the ventromedial prefrontal cortex (vmPFC).
    • Increased SNS activity (more SCRs) correlated with decreased activation in the dorsomedial prefrontal cortex and increased activation in the left hippocampus.
    • Hippocampal-vmPFC coupling predicted baseline SNS and PNS activity, respectively.

    Conclusions:

    • The hippocampus plays a role in potentiating SNS activity.
    • Distinct medial prefrontal cortex regions coordinate the regulation of SNS and PNS activity.
    • Findings suggest potential developmental differences in vmPFC regulation of PNS activity between adolescents and adults.