Childhood Anxiety-If We Know So Much, Why Are We Doing So Little?

An Integrative Model of Youth Anxiety: Cognitive-Affective Processes and Parenting in Developmental Context

Multiple theoretical frameworks have been proposed to provide a more comprehensive picture of the risk factors that influence anxiety-related developmental trajectories. Nonetheless, there remains a need for an integrative model that outlines: (1) which risk factors may be most pertinent at different points in development, and (2) how parenting may maintain, exacerbate, or attenuate an affective style that is characterized by high negative emotional reactivity to unfamiliar, uncertain, and threatening situations. A developmentally informed, integrative model has the potential to guide treatment development and delivery, which is critical to reducing the public health burden associated with these disorders. This paper outlines a model integrating research on many well-established risk mechanisms for anxiety disorders, focusing on (1) the developmental progression from emotional reactivity constructs early in life to those involving higher-level cognitive processes later in youth, and (2) potential pathways by which parenting may impact the stability of youth's cognitive-affective responses to threat-relevant information across development.

Targeting intolerance of uncertainty in treatment: A meta-analysis of therapeutic effects, treatment moderators, and underlying mechanisms

OBJECTIVE

Anxiety-related disorders are among the most prevalent psychiatric conditions and cause significant impairment. Intolerance of uncertainty (IU) contributes to the emergence, maintenance, and symptom severity of anxiety-related disorders, yet information regarding treatment-related changes in IU is limited. This systematic review and meta-analysis examined the efficacy of evidence-based treatments for anxiety-related disorders on IU, explored factors moderating treatment effects of IU, and examined whether therapeutic improvement in IU corresponded with improvements in anxiety symptom severity.

METHODS

PubMED and PsycINFO were searched for randomized controlled trials (RCTs) using the terms "intolerance of uncertainty" AND "treatment" OR "therapy." Data for pre and post-treatment measures and patient, intervention, and trial-level characteristics were extracted from 28 RCTs. Separate random effects models examined the treatment efficacy of interventions on IU and symptom severity. Moderators of therapeutic effects were analyzed via method-of-moments meta-regression or an analog to the analysis of variance.

RESULTS

Across RCTs, interventions exhibited a large therapeutic effect on IU compared to control conditions (g = 0.89). Treatment effects on IU positively corresponded with improved symptom severity and accounted for 36 % of the variance. Interestingly, comorbid depression and certain treatment approaches were associated with larger improvements in IU.

CONCLUSION

Evidence-based treatments are effective in improving IU, highlighting the importance of IU in the treatment of anxiety-related disorders. Moderator analyses identified patient and intervention-level factors to inform approaches to improve therapeutic effects on IU. Future research is needed to optimize interventions targeting IU and evaluate long-term efficacy of interventions on IU for anxiety-related disorders.

Anxiety symptoms before and during the COVID-19 pandemic: A longitudinal examination of Canadian young adults

The COVID-19 pandemic has resulted in many changes that may impact anxiety symptoms (i.e., general anxiety and somatization), particularly for young adults who were at higher risk for anxiety than older adults. We examined anxiety symptoms before (age 19, 20, 21, and 22) and during the pandemic (age 23 and 24) in a cohort of Canadian young adults (n = 396). Latent growth curve models were performed for general anxiety and somatization and the pandemic time points were estimated as structured residuals to quantify the change from participants' expected trajectories. We also examined whether fear of COVID-19 predicted the changes in anxiety symptoms during the pandemic. Results indicated that a history of general anxiety and somatization positively predicted fear of COVID-19 during the pandemic and negatively predicted pandemic change from predicted values for both general anxiety and somatization. Increased COVID-19 fear was related within time to increases in general anxiety at ages 23 and 24 and increases in somatization at age 24. We also found that the proportion of individuals in the subclinical/clinical range of somatization was higher from age 23-24, but not from age 22-23 and there were no differences for general anxiety. Results highlight the need to consider within-person change and development in evaluating anxiety symptom changes and predictors of changes in anxiety symptoms.

Anxiety and Depression Signs Among Adolescents in 26 Low- and Middle-Income Countries: Prevalence and Association With Functional Difficulties

PURPOSE

The aim of this study is to describe the occurrence of signs of depression and anxiety among adolescents from 26 low- and middle-income countries and explore the extent to which these are associated with difficulties across other functional domains.

METHODS

We analyzed randomly selected, nationally representative data from 26 countries with a total sample size of 123,975 adolescents aged 10-17 years. Data on functional difficulties, including signs of depression and anxiety, were collected by the Child Functioning Module, an instrument validated to identify the population of children with disabilities through household surveys. We estimated percentages and 95% confidence intervals of adolescents with difficulties across 11 domains of functioning, and of signs of depression and/or anxiety. We used multinomial regressions to estimate the association between difficulties in the different domains and having signs of depression only, signs of anxiety only, and signs of both depression and anxiety, relative to not presenting signs of depression or anxiety.

RESULTS

In total, 5.5% of adolescents were reported to have had signs of anxiety, 3.1% signs of depression, and 2.3% co-occurring signs of anxiety and depression. Compared to adolescents without functional difficulties, those with difficulties in one or more domains were three times more likely to have signs of depression and anxiety. The likelihood of presenting signs of depression only or signs of both depression and anxiety was significantly higher across all domains, and the highest among adolescent with difficulties to self-care and communicating. The likelihood of presenting signs of anxiety only was significantly higher across all domains except seeing and hearing, and the highest among adolescent with difficulties communicating and accepting changes.

DISCUSSION

Adolescents with functional difficulties in all domains analyzed, across different contexts, are more likely to experience depression and anxiety signs than those without such difficulties. Increasing the availability of population-level data on adolescent functional difficulties, including those related to depression and anxiety, is important in promoting inclusivity, participation, and the right of children to equal opportunities.

Parent-identified barriers to accessing exposure therapy: A qualitative study using process mapping

Background

Youth with anxiety and obsessive-compulsive disorder (OCD) rarely access exposure therapy, an evidence-based treatment. Known barriers include transportation, waitlists, and provider availability. Efforts to improve access to exposure require an understanding of the process that families take to find therapists, yet no prior studies have examined parents' perspectives of the steps involved.

Methods

Parents of children who have received exposure therapy for anxiety and/or OCD (N = 23) were recruited from a hospital-based specialty anxiety clinic where the majority of their children previously received exposure. Recruitment was ongoing until thematic saturation was reached. Parents completed questionnaires and attended an online focus group during which they were asked to describe each step they took-from recognizing their child needed treatment to beginning exposure. A process map was created and shown in real-time, edited for clarity, and emailed to parents for member checking. Authors analyzed process maps to identify common themes.

Results

Several themes emerged, as visually represented in a final process map. Participants identified a "search-outreach" loop, in which they repeated the cycle of looking for therapists, contacting them, and being unable to schedule an appointment due to factors such as cost, waitlists, and travel time. Parents often did not know about exposure and reported feeling guilty about their lack of knowledge and inability to find a suitable provider. Parents reported frustration that medical providers did not often know about exposure and sometimes dismissed parents' concerns. Participants emphasized the difficulty of navigating the mental health system; many reported that it took years to find an exposure therapist, and that the search was sometimes stalled due to fluctuating symptoms.

Conclusion

A common thread among identified barriers was the amount of burden placed on parents to find treatment with limited support, and the resultant feelings of isolation and guilt. Findings point to several directions for future research, such as the development of parent support groups for navigating the mental health system; enhancing coordination of care between medical and mental health providers; and streamlining referral processes.

Childhood behavioral inhibition and overcontrol: Relationships with cognitive functioning, error monitoring, anxiety and obsessive-compulsive symptoms

Anxiety and obsessive-compulsive disorders are common childhood psychiatric disorders. Behavioral inhibition (BI) is a widely studied risk factor for anxiety. Less is known about overcontrol, a related behavioral phenotype characterized by concern for errors, perfectionism, and inflexibility and also associated with anxiety and obsessive-compulsive disorder. Both BI and overcontrol show associations with aberrant cognitive control and neural error responding (via the error-related negativity; ERN) yet it is unknown whether each imparts differential risk. Understanding whether overcontrol demonstrates independent associations from BI with cognitive functioning, neural error monitoring, and childhood anxiety and obsessive-compulsive presentations could aid in identifying a novel mechanistic treatment target. We assessed BI, overcontrol, cognitive functioning and psychopathology in a cross-sectional sample of 5-6 year old children (N = 126). Children completed an electroencephalogram (EEG) to assess the ERN. Overcontrol was associated with worse cognitive shifting, worse inhibitory control and higher anxiety and obsessive-compulsive symptoms, beyond BI. BI was associated with worse cognitive shifting, better inhibitory control and higher anxiety symptoms, beyond overcontrol. When assessed simultaneously, only overcontrol demonstrated a significant relationship with a blunted ERN. Moreover, overcontrol mediated (cross-sectionally) the well-established relationship between ERN and anxiety and obsessive-compulsive symptoms. BI and overcontrol impart differential risk for child cognitive functioning and anxiety while overcontrol demonstrates additional risk for aberrant neural error monitoring, anxiety and obsessive-compulsive presentations. Overcontrol may also be a mechanistic pathway between the ERN and transdiagnostic anxiety and obsessive-compulsive symptoms. Overcontrol may be a target warranted for early-childhood intervention in anxiety and OCD.

The effect of parietal glutamate/GABA balance on test anxiety levels in early childhood in a cross-sectional and longitudinal study

The increased prevalence of test anxiety in our competitive society makes it a health issue of public concern. However, its neurobiological basis, especially during the years of formal education, is currently scant. Previous research has highlighted the association between neural excitation/inhibition balance and psychopathology and disease. We examined whether the glutamate/GABA profile tracks test anxiety levels in development, using a cross-sectional and longitudinal design in a cohort spanning from early childhood to early adulthood (N = 289), reassessed approximately 21 months later (N = 194). We used magnetic resonance spectroscopy to noninvasively quantify glutamate and gamma-Aminobutyric acid (GABA) levels in the intraparietal sulcus (IPS) and the middle frontal gyrus. We show that the glutamate/GABA balance within the IPS relates to current individual variation in test anxiety levels and predict future test anxiety approximately 21 months later. Critically, this relationship was observed during early childhood but not during the later developmental stages. Our results extend the use of the excitation/inhibition balance framework to characterize the psychopathology mechanisms of test anxiety, an underexplored yet widespread and debilitating condition that can impact early child development. Our findings provide a better understanding of the neurotransmitter basis underlying the emergence of anxiety disorders during development.

Parental drinking, mental health and education, and extent of offspring's healthcare utilisation for anxiety/depression: A HUNT survey and registry study

AIMS

Certain risk constellations of parental drinking, mental health and years of education are prospectively associated with offspring's risk for a diagnosis of anxiety/depression, but it remains unknown how they may relate to other aspects of offspring's mental health. We examined whether such risk constellations were also prospectively associated with the extent of offspring's utilisation of healthcare services for anxiety/depression.

METHODS

The sample included 8773 adolescent offspring of 6696 two-parent families who participated in the Nord-Trøndelag Health Study in Norway. The exposures consisted of five parental risk constellations characterised by drinking frequencies and quantities, years of education and mental health previously derived based on the parental self-reports using latent profile analysis. The outcomes were the number of years in contact, and the total number of consultations/visits, with healthcare services for anxiety/depression in adolescents and young adults as recorded in healthcare registries in the period 2008-2014. Associations were examined using zero-inflated negative binomial regression models, accounting for demographics and offspring's early mental health.

RESULTS

Parental risk constellations were not significantly associated with the extent of offspring's healthcare utilisation for anxiety/depression during the seven-year study period, neither in respect of number of years nor in number of contacts.

CONCLUSIONS

Offspring of four risky constellations were no more likely to use healthcare services for longer time periods or have more consultations/visits than offspring of the lowest-risk constellation. Parental risk constellations appear more informative for understanding disorder aetiology than for understanding management and treatment of anxiety and depression during adolescence and early adulthood.

CBT for Childhood Anxiety: Reviewing the State of Personalised Intervention Research

This article presents a mini-review of the state of personalised intervention research in the field of child and adolescent anxiety. We evaluated narrative, systematic and meta-analytic reviews of key research methodologies and how they relate to current approaches for personalising CBT, specifically. Preliminary evidence of predictors (severity of primary disorder, social anxiety disorder (SoAD), comorbid depression, parental psychopathology, parental involvement and duration of treatment), moderators (type of primary disorder) and mediators (self-talk, coping, problem-solving and comorbid symptoms) of CBT outcomes provides content for several personalised approaches to treatment. Finally, we present a novel conceptual model depicting the state of personalised intervention research in childhood anxiety and propose a research agenda for continued progress.

Examining the bidirectional relationships between maternal intrusiveness and child internalizing symptoms in a community sample: A longitudinal study from infancy to middle childhood

BACKGROUND

Myriad parenting behaviors have been linked to the development of internalizing disorders in children. Intrusive parenting, characterized by autonomy-limiting behaviors that hold the parent's agenda above that of the child, may uniquely contribute to the development of child internalizing symptoms. The current study investigates bidirectional effects between maternal intrusiveness and internalizing symptomology from infancy to middle childhood.

METHODS

Participants were a community sample of 218 infant-mother dyads assessed at 7 time points (5 and 10 months; 2, 3, 4, 6, and 9 years). Maternal intrusiveness was behaviorally coded at all timepoints; mothers completed the CBCL for their child at ages 3, 4, 6, and 9 years. The empirically derived Internalizing subscale was used to assess child internalizing symptoms.

RESULTS

About 1/3 to ½ of mothers displayed maternal intrusiveness across infancy and childhood, with the exception of ages 2-3 years, when an increase in the number of mothers displaying intrusiveness was observed. A cross-lagged panel model showed that intrusiveness and internalizing symptoms were concurrently related at 3 years, but this relationship disappeared when we controlled for maternal education. There was no evidence of prospective relationships between our constructs.

CONCLUSIONS

Mothers in a community-based sample may increase intrusiveness in the toddler and early preschool years as children strive for more autonomy. Intrusiveness may play more of a maintenance role in child internalizing symptoms, and associations between maternal intrusiveness and child internalizing symptomatology may be weaker than hypothesized, varying by maternal education. Suggestions for assessing intrusive parenting in future studies are discussed.

Distance learning in Italian primary and middle school children during the COVID-19 pandemic: a national survey

Background

School closure created difficulties for parents, who were asked to care for their children and help them with schooling, while working at home. We aimed to explore the experiences in organising school for children at home and its implications on children’s psychological well-being and educational progress during the quarantine for the COVID-19 pandemic.

Methods

A nationwide online survey of mothers of primary and middle school students was conducted during the COVID-19 pandemic. Demographic data and information on distance learning organisation and children’s attitudes and behavioural changes were collected.

Results

2149 mothers completed the survey, with a final sample of 1601 subjects. Large differences between primary and middle school emerged: lessons were less organised and routines were more instable for the youngest, who could not pay attention for more than 20 min (28.3%) and needed breaks every 10 min (21.6%), with lower quality of learning (40.6%), increased restlessness (69.1%), and aggressiveness (33.3%). A large use of screens was reported, with an abuse in screen time in 2%. Two thirds of mothers did not approve of distance learning (72.2%) because of their role in replacing teachers (77.8%), the effort required (66%), and the great commitment required (78.3%).

Conclusions

Distance learning increased educational deprivation and social inequalities, especially for the youngest children, who lost almost one year of school. The situation was even worse for children with disabilities, who were neglected by the institutions. This period should be considered as an opportunity to correct the weaknesses of our school system.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-021-11026-x.

Nonhuman Primate Models to Explore Mechanisms Underlying Early-Life Temperamental Anxiety

Anxiety disorders are among the most prevalent psychiatric disorders, causing significant suffering and disability. Behavioral inhibition is a temperament that is linked to an increased risk for the later development of anxiety disorders and other stress-related psychopathology, and understanding the neural systems underlying this dispositional risk could provide insight into novel treatment targets for anxiety disorders. Nonhuman primates (NHPs) have anxiety-related temperaments that are similar to those of humans with behavioral inhibition, facilitating the design of translational models related to human psychopathology. Characterization of our NHP model of behavioral inhibition, which we term anxious temperament (AT), reveals that it is trait-like. Exploration of the neural substrates of AT in NHPs has revealed a distributed neural circuit that is linked to individual differences in AT, which includes the dorsal amygdala. AT-related metabolism in the dorsal amygdala, including the central nucleus, is stable across time and can be detected even in safe contexts, suggesting that AT has trait-like neural signatures within the brain. The use of lesioning and novel chemogenetic methods allows for mechanistic perturbation of the amygdala to determine its causal contribution to AT. Studies characterizing the molecular bases for individual differences in AT in the dorsal amygdala, which take advantage of novel methods for probing cellular and molecular systems, suggest involvement of neurotrophic systems, which point to the importance of neuroplasticity in AT. These novel methods, when used in combination with translational NHP models such as AT, promise to provide insights into the brain systems underlying the early risk for anxiety disorder development.