Irritability, or an increased proneness to frustration and anger, is common in youth; however, few studies have examined neurostructural correlates of irritability in children. The purpose of the current study was to examine concurrent and longitudinal associations between brain structure and irritability in a large sample of 9–10-year-old children. Participants included 10,647 children from the Adolescent Brain Cognitive Development
Irritability is increasingly recognized as a significant clinical problem in youth. It is a criterion for multiple diagnoses and predicts the development of a wide range of disorders. Research on its etiology suggests that genetic and family environmental factors play a role, as do abnormalities in reward and cognitive-control neural circuitry. However, many of these effects are age dependent. Threat-responsive self-regulatory systems and the degree to which irritability is tonic or phasic influence whether irritable youth exhibit more internalizing or more externalizing outcomes.
more » « less- PAR ID:
- 10546694
- Publisher / Repository:
- SAGE Publications
- Date Published:
- Journal Name:
- Current Directions in Psychological Science
- Volume:
- 30
- Issue:
- 5
- ISSN:
- 0963-7214
- Format(s):
- Medium: X Size: p. 437-443
- Size(s):
- p. 437-443
- Sponsoring Org:
- National Science Foundation
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Abstract sm Study (ABCD Study®). We related a latent irritability factor to gray matter volume, cortical thickness, and surface area in 68 cortical regions and to gray matter volume in 19 subcortical regions using structural equation modeling. Multiple comparisons were adjusted for using the false discovery rate (FDR). After controlling for age, sex, race/ethnicity, scanner model, parent’s highest level of education, medication use, and total intracranial volume, irritability was associated with smaller volumes in primarily temporal and parietal regions at baseline. Longitudinal analyses showed that baseline gray matter volume did not predict irritability symptoms at the 3rd-year follow-up. No significant associations were found for cortical thickness or surface area. The current study demonstrates inverse associations between irritability and volume in regions implicated in emotional processing/social cognition, attention allocation, and movement/perception. We advance prior research by demonstrating that neurostructural differences associated with irritability are already apparent by age 9–10 years, extending this work to children and supporting theories positing socioemotional deficits as a key feature of irritability. -
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Background Irritable mood is a transdiagnostic clinical feature that is present in multiple psychiatric disorders. Although irritability is frequently examined as a unitary construct, two dimensions of irritability, tonic (i.e., irritable mood) and phasic (i.e., temper outbursts), have been hypothesized. However, few studies have examined whether tonic and phasic irritability are empirically separable and predict different forms of psychopathology.
Methods We utilized data from a longitudinal study of a community sample of 550 girls (age 13.5–15.5 years) followed at 9‐month intervals for 3 years. We conducted exploratory factor analysis (EFA) using items from three self‐report inventories: the International Personality Item Pool Anger scale, Temperament and Affectivity Inventory Anger scale, and Buss‐Perry Aggression Questionnaire Anger scale.
Results The EFA identified dimensions that were consistent with tonic and phasic irritability. Tonic irritability at baseline independently predicted the development of depressive disorders and generalized anxiety disorder (GAD) in subsequent waves. Phasic irritability independently predicted a decreased probability of GAD, but an increased probability of oppositional defiant, conduct, and substance use disorder, and greater risky sexual behavior and relational aggression during the follow‐up.
Conclusions Tonic and phasic irritability appear to be separable constructs with unique implications for later psychopathology and related behavior among adolescent girls. It is important to consider this distinction in research on the etiology and pathophysiology of irritability and developing effective treatments.
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Background Research to date has largely conceptualized irritability in terms of intraindividual differences. However, the role of interpersonal dyadic processes has received little consideration. Nevertheless, difficulties in how parent–child dyads synchronize during interactions may be an important correlate of irritably in early childhood. Innovations in developmentally sensitive neuroimaging methods now enable the use of measures of neural synchrony to quantify synchronous responses in parent–child dyads and can help clarify the neural underpinnings of these difficulties. We introduce the Disruptive Behavior Diagnostic Observation Schedule: Biological Synchrony (DB‐DOS:BioSync) as a paradigm for exploring parent–child neural synchrony as a potential biological mechanism for interpersonal difficulties in preschool psychopathology.
Methods Using functional near‐infrared spectroscopy (fNIRS) 4‐ to 5‐year‐olds (
N = 116) and their mothers completed the DB‐DOS:BioSync while assessing neural synchrony during mild frustration and recovery. Child irritability was measured using a latent irritability factor that was calculated from four developmentally sensitive indicators.Results Both the mild frustration and the recovery contexts resulted in neural synchrony. However, less neural synchrony during the recovery context only was associated with more child irritability.
Conclusions Our results suggest that recovering after a frustrating period might be particularly challenging for children high in irritability and offer support for the use of the DB‐DOS:BioSync task to elucidate interpersonal neural mechanisms of developmental psychopathology.
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