Proof of Concept Study of an Oral Orthotic in Reducing Tic Severity in Tourette Syndrome.

The use of an oral orthotic, called an occlusal splint, has gained recognition for the potential to reduce the frequency of tics for individuals with Persistent Tic Disorders. The purpose of this study was to assess the feasibility of a fully blinded, randomized controlled trial (RCT) to assess the safety, tolerability and initial efficacy of the oral orthotic in youth with chronic tics. Thirteen youth were randomly assigned to wear an active or sham orthotic in a two week double-blind RCT, with a 4-6 week unblinded follow up period. A statistically significant difference was found for change in tic severity between participants wearing the active and sham orthotic. However, this difference was not replicated during the follow up period. The oral orthotic is a promising intervention for the reduction of tics in youth with Tourette's Syndrome and is worthy of continued study to establish intervention efficacy and mechanism of action.

Parenting behavior and growth of child conduct problems: Moderation by callous-unemotional traits.

Although positive parenting behavior is central to efficacious interventions for child conduct problems (CP), studies of youth CP have focused mostly on negative parenting behavior. That is, few studies have examined dimensions of positive parenting behavior (e.g., positive reinforcement, involvement) as independent predictors of CP and even fewer have investigated their potential moderation by callous-unemotional (CU) traits. A sample of 184 6-9 year-old children with and without attention-deficit/hyperactivity disorder (ADHD) was followed prospectively for two years. Controlling for baseline ADHD diagnostic status, initial CP, and negative parenting (i.e., corporal punishment), we examined CU traits, positive reinforcement and involvement, and their interactions as predictors of two-year change in CP. Positive reinforcement and CU traits independently predicted increased rule breaking behavior whereas parental involvement inversely predicted aggressive behavior. A significant positive reinforcement x CU traits interaction suggested that positive reinforcement predicted a decrease in aggressive behavior, but only in children with low CU traits; conversely, positively reinforcement marginally predicted increased aggressive behavior among children with high CU traits. No other significant parenting x CU traits interaction was observed. We consider these findings within a developmental psychopathology framework where interactive exchanges underlie the development of CP.

Smartphone apps for depression and anxiety: a systematic review and meta-analysis of techniques to increase engagement.

Meta-analyses have shown that digital mental health apps can be efficacious in reducing symptoms of depression and anxiety. However, real-world usage of apps is typically not sustained over time, and no studies systematically examine which features increase sustained engagement with apps or the relationship between engagement features and clinical efficacy. We conducted a systematic search of the literature to identify empirical studies that (1) investigate standalone apps for depression and/or anxiety in symptomatic participants and (2) report at least one measure of engagement. Features intended to increase engagement were categorized using the persuasive system design (PSD) framework and principles of behavioral economics. Twenty-five studies with 4159 participants were included in the analysis. PSD features were commonly used, whereas behavioral economics techniques were not. Smartphone apps were efficacious in treating symptoms of anxiety and depression in randomized controlled trials, with overall small-to-medium effects (g = 0.2888, SE = 0.0999, z(15) = 2.89, p = 0.0119, Q(df = 14) = 41.93, p < 0.0001, I2 = 66.6%), and apps that employed a greater number of engagement features as compared to the control condition had larger effect sizes (ß = 0.0450, SE = 0.0164, t(15) = 2.7344, p = 0.0161). We observed an unexpected negative association between PSD features and engagement, as measured by completion rate (ß = -0.0293, SE = 0.0121, t(17) = 02.4142, p = 0.0281). Overall, PSD features show promise for augmenting app efficacy, though engagement, as reflected in study completion, may not be the primary factor driving this association. The results suggest that expanding the use of PSD features in mental health apps may increase clinical benefits and that other techniques, such as those informed by behavioral economics, are employed infrequently.

Differential Association of Youth Attention-Deficit/Hyperactivity Disorder and Anxiety With Delinquency and Aggression.

Although attention-deficit/hyperactivity disorder (ADHD) is independently associated with both anxiety and conduct problems, it is unclear how co-occurring ADHD + anxiety are associated with different forms of conduct problems. That is, there is relatively little evidence how ADHD and co-occurring anxiety, relative to ADHD only and anxiety only, are associated with aggression and delinquency. Controlling for age, sex, oppositional defiant disorder diagnostic status and total psychopathology, we compared children with anxiety only, ADHD only, ADHD + anxiety, and a clinic-referred comparison group on measures of conduct problems. Three hundred eighty ethnically diverse boys and girls ages 5 to 17 (M = 11.62) were evaluated using a semistructured diagnostic interview for ADHD and anxiety; aggressive and delinquent behavior were evaluated using the Child Behavior Checklist. Children with anxiety only (n = 119) did not differ from clinic-referred comparisons (i.e., no DSM-IV diagnosis; n = 95) on aggression or delinquency; children with ADHD only (n = 130) were significantly more aggressive and delinquent than children with anxiety only. Children with ADHD + anxiety (n = 36) were significantly less aggressive than children with ADHD only, but they did not differ with respect to delinquency. These preliminary data suggest that ADHD, in the presence of anxiety, may be associated with significantly less aggression but not less delinquency. We discuss these findings from a developmental psychopathology framework and stress the need for further study to support possible implications for intervention and prevention.

Anxiety Disorders Among Children and Adolescents.

Anxiety disorders represent the most common psychiatric illnesses affecting children and adolescents. Youths who suffer from anxiety disorders typically experience impairment in social, family, and educational domains of functioning. Despite the prevalence of youth anxiety disorders, identifying anxiety as the underlying cause can be a challenge. This article summarizes recent changes in diagnostic criteria in DSM-5, reviews core features of anxiety, and discusses how to recognize anxiety among youths. It also provides recommendations on how to differentiate anxiety from other diagnoses, with a focus on attention-deficit hyperactivity disorder. Suggestions for evidence-based assessment methods and instruments will be made. This article will also review the current evidence base for treatments and provide recommendations for managing refractory cases from a behavioral perspective. The scope of the review focuses on the following constellation of anxiety disorders: separation anxiety disorder, social anxiety disorder, panic disorder, agoraphobia, specific phobia, and generalized anxiety disorder. Although obsessive-compulsive disorder is not categorized with the other anxiety disorders in DSM-5, it will also be covered within this review.

The child anxiety impact scale: examining parent- and child-reported impairment in child anxiety disorders.

The purpose of the current investigation was to examine the factor structure, reliability, and construct validity of both the Child and Parent version of the Child Anxiety Impact Scale (CAIS) using data obtained from the Child/Adolescent Anxiety Multimodal Study (Walkup et al., 2008 ). The CAIS child and parent versions measure anxiety-related functional impairment in school, social, and family domains. Participants were 488 children ages 7 to 17 (M age = 10.7, SD = 2.8 years) enrolled as part of the CAMS study across 6 sites and their primary parent or caregiver. Families participated in a structured diagnostic interview and then completed the CAIS along with other measures. Confirmatory factor analysis revealed that the a priori three-factor structure (school, social, and home/family) for the CAIS parent- and CAIS child-report was a reasonable fit, with a comparative fit index of .88 and root mean square error of approximation of .05. Internal consistency was very good for total score and subscales of both versions of the scale (Cronbach's α = .70-.90). The CAIS total scores demonstrated good construct validity, showing predicted significant correlations with the Child Behavior Checklist (CBCL) Internalizing Scale, the Multidimensional Anxiety Scale for Children (MASC) and Screen for Child Anxiety Related Emotional Disorders (SCARED) Total Scores, the Pediatric Anxiety Rating Scale, and the Children's Global Assessment Scale. In addition, CAIS Social and School subscales were significantly related to similar subscales on the CBCL, SCARED, and MASC. The results provide support that the CAIS is a reliable and valid measure for the assessment of the impact of anxiety on child and adolescent functioning.

Association of comorbid anxiety with social functioning in school-age children with and without attention-deficit/hyperactivity disorder (ADHD).

Although attention-deficit/hyperactivity disorder (ADHD) is frequently comorbid with disruptive behavior disorders, less is known about ADHD and comorbid anxiety. To improve understanding about the association of anxiety and social functioning, we studied 223 6 to 9 year-old ethnically diverse boys and girls (M=7.4 years) with and without ADHD. According to parents, children with ADHD and anxiety (n=46) and ADHD only (n=71) were consistently less socially competent than comparison children (i.e., no anxiety and ADHD: n=80) and children with anxiety only (n=26), who did not differ from one another. A similar pattern emerged for teacher ratings where youth with ADHD only and ADHD with anxiety exhibited the most social problems, but they did not differ from each other. These data suggest that comorbid anxiety does not exacerbate social dysfunction among 6 to 9 year-old children with ADHD. We consider findings within a developmental psychopathology framework to further understand social development in children with ADHD and anxiety.