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Psychophysiological Assessment of the Effectiveness of Emotion Regulation Strategies in Childhood
08:09

Psychophysiological Assessment of the Effectiveness of Emotion Regulation Strategies in Childhood

Published on: February 11, 2017

Different psychophysiological and behavioral responses elicited by frustration in pediatric bipolar disorder and

Brendan A Rich1, Mariana Schmajuk, Koraly E Perez-Edgar

  • 1Pediatrics and Developmental Neuropsychiatry Branch, Section on Development and Affective Neuroscience, NIMH Mood and Anxiety Program, Bethesda, MD 20892, USA. brendanrich@mail.nih.gov

The American Journal of Psychiatry
|February 3, 2007
PubMed

Insights

Irritability in children with severe mood dysregulation and bipolar disorder differs, impacting attention differently. Oppositional defiant disorder severity influences these attention deficits in severe mood dysregulation.

Area of Science:

  • Child and Adolescent Psychiatry
  • Neuroscience
  • Developmental Psychology

Background:

  • Irritability is a key symptom in pediatric mood disorders, but its diagnostic role in pediatric mania remains debated.
  • Severe mood dysregulation (SMD) and narrow-phenotype bipolar disorder (BD) present with irritability, but their underlying mechanisms may differ.

Purpose of the Study:

  • To compare the behavioral and psychophysiological correlates of irritability in children with SMD, narrow-phenotype BD, and healthy controls.
  • To investigate how attentional processes and brain activity differ among these groups under emotional challenge.

Main Methods:

  • Utilized the affective Posner task to assess attentional responses to emotional stimuli and frustration in 21 children with SMD, 35 with narrow-phenotype BD, and 26 healthy controls.
  • Measured mood, behavior (reaction time, accuracy), and event-related potentials (ERPs) including N1 and P3 amplitudes.

Main Results:

  • Both SMD and narrow-phenotype BD groups reported higher arousal during frustration than controls.
  • Children with narrow-phenotype BD showed impaired executive attention (lower P3 amplitude) during frustration.
  • Children with SMD exhibited deficits in initial attention stages (lower N1 amplitude), linked to oppositional defiant disorder severity.

Conclusions:

  • Irritability in SMD and narrow-phenotype BD has distinct psychophysiological underpinnings.
  • Attentional impairments differ between SMD and narrow-phenotype BD, with N1 deficits in SMD associated with oppositional defiant disorder.
  • Findings suggest irritability is not a uniform diagnostic indicator and highlight the influence of comorbid conditions.
Abstract

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