Response Inhibition in Youth Undergoing Intensive Treatment for Obsessive Compulsive Disorder.

Response Inhibition (RI) is the ability to suppress behaviors that are inappropriate for a given context. Obsessive-compulsive disorder (OCD) has been associated with impaired RI in adults as measured by the Stop Signal Task (SST). Conflicting results have been found in terms of the relationship between OCD severity and SST performance, and no studies to date have examined the relationship between SST and response to OCD treatment. Also relatively unknown is whether RI performance in OCD is associated with developmental or gender differences. This naturalistic study examined the relationship between SST performance, OCD severity, and OCD treatment response in a pediatric sample undergoing intensive treatment involving exposure and response prevention and medication management (n = 36). The SST and Children's Yale-Brown Obsessive Compulsive Scale (CYBOCS) were administered at admission and program discharge. OCD severity was not significantly related to stop signal reaction time (SSRT) in the whole sample and among subgroups divided by age and gender. Baseline SSRT and SSRT change did not predict CYBOCS change across treatment in the whole sample, but exploratory analyses indicated both were significant predictors among female adolescents. Results suggest there may be developmental gender differences in the relationship between RI and clinical improvement in pediatric OCD.

Trajectory of Change in Parental Accommodation and Its Relation to Symptom Severity and Impairment in Pediatric OCD.

Family accommodation (FA) has been shown to relate to poorer treatment outcomes in pediatric obsessive compulsive disorder (OCD), yet few studies have examined the trajectory of change in FA throughout treatment and its relation to treatment outcomes. This study examined change in FA in relation to change in symptom severity and impairment in 63 youth receiving a family-based intervention for early-onset OCD. FA, symptom severity and functional impairment were assessed at baseline, week 5, week 9, and post-treatment (week 14). Results suggested that changes in FA in the beginning stages of treatment preceded global symptom improvement (but not OCD specific improvement) whereas changes in functional impairment preceded changes in FA. In the latter half of treatment, changes in FA preceded improvement in global and OCD specific symptom severity as well as functional impairment. These findings highlight the importance of reducing FA, especially in the later stages of treatment, in order to optimize treatment outcomes in early-onset OCD.

Improving Delivery Behaviors During Exposure for Pediatric OCD: A Multiple Baseline Training Trial With Community Therapists.

This study tested whether a new training tool, the Exposure Guide (EG), improved in-session therapist behaviors (i.e., indicators of quality) that have been associated with youth outcomes in prior clinical trials of exposure therapy. Six therapists at a community mental health agency (CMHA) provided exposure therapy for 8 youth with obsessive-compulsive disorder (OCD). Using a nonconcurrent multiple baseline design with random assignment to baseline lengths of 6 to 16 weeks, therapists received gold-standard exposure therapy training with weekly consultation (baseline phase) followed by addition of EG training and feedback (intervention phase). The primary outcome was therapist behavior during in-session exposures, observed weekly using a validated coding system. Therapist behavior was evaluated in relation to a priori benchmarks derived from clinical trials. Additional outcomes included training feasibility/acceptability, therapist response to case vignettes and beliefs about exposure, and independent evaluator-rated clinical outcomes. Three therapists reached behavior benchmarks only during the EG (intervention) phase. Two therapists met benchmarks during the baseline phase; one of these subsequently moved away from benchmarks but met them again after starting the EG phase. Across all therapists, the percentage of weeks meeting benchmarks was significantly higher during the EG phase (86.4%) vs. the baseline phase (53.2%). Youth participants experienced significant improvement in OCD symptoms and global illness severity from pre- to posttreatment. Results provide initial evidence that adding the EG to gold-standard training can change in-session therapist behaviors in a CMHA setting.

Therapist Behavior During Exposure Tasks Predicts Habituation and Clinical Outcome in Three Randomized Controlled Trials for Pediatric OCD.

This study measured therapist behaviors in relation to subsequent habituation within exposure tasks, and also tested their direct and indirect relationships (via habituation) with clinical outcomes of exposure therapy. We observed 459 videotaped exposure tasks with 111 participants in three clinical trials for pediatric obsessive-compulsive disorder (POTS trials). Within exposure tasks, therapist behaviors and patient fear were coded continuously. Outcomes were habituation and posttreatment change in symptom severity, global improvement, and treatment response. More therapist behaviors that encourage approach-and less use of accommodation, unrelated talk, and externalizing language-predicted greater subsequent habituation during individual exposure tasks (exposure-level), and also predicted improved patient clinical outcomes via higher "total dose" of habituation across treatment (patient-level indirect effect). For six of seven therapist behaviors analyzed, the relationship with subsequent habituation within exposure differed by patient fear (low, moderate, or high) at the time the behavior was used. Two therapist behaviors had direct effects in the opposite direction expected; more unrelated talk and less intensifying were associated with greater patient symptom reduction. Results shed light on the "black box" of in-session exposure activities and point to specific therapist behaviors that may be important for clinical outcomes. These behaviors might be best understood in the context of changing patient fear during exposure tasks. Future studies should test whether therapist behaviors can be experimentally manipulated to produce improvement in clinical outcomes.

Core Motivations of Childhood Obsessive-Compulsive Disorder: The Role of Harm Avoidance and Incompleteness.

In an effort to improve patient conceptualization and targeted treatment, researchers have sought to accurately classify OCD subtypes. To date, the most common form of OCD classification has used the content of symptom topography as opposed to functional links between symptoms to categorize OCD. The aim of the current study was to explore the associations between these two forms of OCD classification. Participant topographical symptoms were self-reported using the Obsessive-Compulsive Inventory-Child Version (OCI-CV). Clinicians assessed whether participant symptoms were motivated by harm avoidance and/or incompleteness. Structural equation modeling was employed to explore the associations between harm avoidance and incompleteness and symptom dimensions in youth with OCD. Results showed that harm avoidance was significantly associated with doubting/checking, obsessing, and neutralizing symptoms, whereas incompleteness was associated with doubting/checking, ordering, and neutralizing symptoms. Findings are consistent with child and adult literature and highlight the importance of assessing the underlying function of OC behaviors.

Disgust propensity and sensitivity in childhood anxiety and obsessive-compulsive disorder: Two constructs differentially related to obsessional content.

The role of disgust in anxiety and related disorders has been extensively studied in adults, however its role in childhood psychopathology is in need of further investigation. The adult literature has suggested that two distinct sub-constructs within "disgust proneness" may differentially predict anxiety-related disorders. Namely, disgust propensity (DP) has been defined as the likelihood an individual will experience a disgust reaction, and disgust sensitivity (DS) as the degree to which an individual is distressed by their experience of disgust. The current study aimed to validate the Disgust Propensity and Sensitivity Scale-Revised (DPSS-R) in a sample of youth receiving intensive services for OCD and anxiety, examine the relationship between disgust sub-constructs and obsessional content in a sample of youth with OCD, and examine the relationship between disgust change and symptom severity at discharge. A confirmatory factor analysis supported a two-factor structure of the DPSS-R. DP was found to be uniquely predictive of contamination obsessions, and DS was found to be uniquely predictive of moral obsessions. Lastly, change in DP, but not DS, predicted overall change in OCD symptom severity. The present study provides a valid measure of DS and DP in youth with anxiety and related disorders, and suggests that subconstructs of disgust may serve as distinct risk factors for obsessional content in youth with OCD. Future research should examine the predictive validity of DP and DS longitudinally, as well as examine effective ways to more effectively target DP with exposure therapy.

Feasibility of decision rule-based treatment of comorbid youth: A pilot randomized control trial.

This study examined the feasibility, acceptability, and preliminary efficacy of a decision rule driven treatment for youth with comorbid conduct problems and depression. A randomized, controlled, repeated measures design was used to compare two treatment approaches: Decision-Rule Based Treatment (DR) and Sequential Treatment (SEQ). Participants included 30 children (ages 8-14; 66% female; 80% Caucasian) who met criteria for a depressive disorder (major depressive disorder and/or dysthymia) and a conduct problem disorder (oppositional defiant disorder and/or conduct disorder). Assessments were conducted at baseline, post-treatment, and six-month follow-up. Treatment adherence, attendance, and session evaluations ratings indicate that the treatments were feasible to implement and acceptable to parents and youth in both conditions. Both treatments showed similar remission of internalizing and externalizing diagnoses. Participants in DR showed significantly greater improvements at six-month follow-up in child-reported depressive symptom severity compared to SEQ. Both DR and SEQ conditions showed significantly lower behavior problems at end of treatment and six-month follow-up. DR showed significant reductions in emotion dysregulation at 6-month follow-up, while SEQ did not. Findings suggest that a decision rule based intervention holds promise as a feasible and acceptable treatment with high rates of remittance.

A Neurocognitive Comparison of Pediatric Obsessive-Compulsive Disorder and Trichotillomania (Hair Pulling Disorder).

Obsessive-compulsive disorder (OCD) and trichotillomania (hair pulling disorder, HPD) are both considered obsessive-compulsive and related disorders due to some indications of shared etiological and phenomenological characteristics. However, a lack of direct comparisons between these disorders, especially in pediatric samples, limits our understanding of divergent versus convergent characteristics. This study compared neurocognitive functioning between children diagnosed with OCD and HPD. In total, 21 children diagnosed with HPD, 40 diagnosed with OCD, and 29 healthy controls (HCs), along with their parents, completed self-/parent-report measures and a neurocognitive assessment battery, which included tasks of inhibitory control, sustained attention, planning, working memory, visual memory, and cognitive flexibility. A series of analyses of variance (or covariance) indicated significant differences between groups on tasks examining planning and sustained attention. Specifically, children in both the OCD and HPD groups outperformed HCs on a task of planning. Further, children with OCD underperformed as compared to both the HPD and HC groups on a task of sustained attention. No between group differences were found with respect to tasks of reversal learning, working memory, spatial working memory, visual memory, or inhibitory control. The implications these findings may have for future, transdiagnostic work, as well as limitations and future directions are discussed.

Cognitive performance of youth with primary generalized anxiety disorder versus primary obsessive-compulsive disorder.

BACKGROUND: Despite gains made in the study of childhood anxiety, differential diagnosis remains challenging because of indistinct boundaries between disorders and high comorbidity. This is certainly true for generalized anxiety disorder (GAD) and obsessive-compulsive disorder (OCD) as they share multiple cognitive processes (e.g., rumination, intolerance of uncertainty, and increased attention to threat). Disentangling such cognitive characteristics and, subsequently, underlying mechanisms could serve to inform assessment and treatment practices, and improve prognoses. METHODS: The current study sought to compare the cognitive performance (working memory, visuospatial memory, planning ability/efficiency, and cognitive flexibility), indexed by the Cambridge Neuropsychological Automated Battery (CANTAB) among three nonoverlapping groups of youth: (1) those diagnosed with OCD (n = 28), (2) those diagnosed with GAD, not OCD (n = 34), and (3) typically-developing controls (TDC) (n = 65). RESULTS: Results showed that OCD and GAD youth demonstrated neurocognitive deficits in planning ability/efficiency, cognitive flexibility, and visual processing when compared to TDC, with potential diagnostic specificity such that youth with GAD or OCD had unique deficits compared to TDC and to one another. Specifically, youth with OCD demonstrated significantly impaired planning ability compared to youth in the GAD and TDS groups, whereas youth with GAD demonstrated greater cognitive inflexibility and delayed visual processing compared to youth in the OCD and TDC groups. CONCLUSIONS: Future studies should expand upon these findings with more comprehensive assessment of cognitive functioning by including self- and parent-report forms, and neuroimaging to link behavioral findings with subjective ratings and neurocircuitry. Altogether, data can then inform future assessment and treatment targets.

Evidence Base Update of Psychosocial Treatments for Pediatric Obsessive-Compulsive Disorder: Evaluating, Improving, and Transporting What Works.

Pediatric obsessive-compulsive disorder is a chronic and impairing condition that often persists into adulthood. This review refreshes the state of support for psychosocial treatments and the predictors or moderators that relate to their efficacy and evaluates how the literature has improved since the last update in 2014. A secondary goal is to propose an additional framework for the categorization of studies based on central research questions rather than treatment format. Psychosocial treatment studies conducted since the last review are described and evaluated according to methodological rigor and evidence-based classification using the Journal of Clinical Child and Adolescent Psychology evidence-based treatment evaluation criteria. Findings again converge in support of cognitive-behavioral therapy (CBT) as an effective and appropriate first-line treatment for youth with obsessive-compulsive disorder. Family-focused CBT is now well-established. A number of other treatments including CBT+ D-Cycloserine, CBT+ Sertraline, CBT+ positive family interaction therapy, and technology-based CBT are now probably efficacious. Demographic, clinical, and family factors are consistent predictors of CBT outcome with conflicting findings for neurocognitive predictors. The field has advanced significantly since the last review, but there is still room for improvement. Some of the conclusions that can be drawn may be limited by our evaluation criteria. Future directions are proposed to advance treatment outcome research beyond a focus on which treatments work to exploring factors that account for how and why they work.

Measuring fear change within exposures: Functionally-defined habituation predicts outcome in three randomized controlled trials for pediatric OCD.

OBJECTIVE: This study measured a variety of within-exposure fear changes and tested the relationship of each with treatment outcomes in exposure therapy. METHOD: We coded 459 videotaped exposure tasks from 111 participants in 3 clinical trials for pediatric obsessive-compulsive disorder (OCD; POTS trials). Within exposures, fear level was observed continuously and alongside exposure process. Fear change metrics of interest were selected for relevance to mechanistic theory. Fear decreases were classified by function; nonhabituation decreases were associated with observed nonlearning processes (e.g., avoidance), whereas habituation decreases appeared to result from an internal and indirect process. Outcomes were posttreatment change in symptom severity, global improvement, and treatment response. RESULTS: Greater cumulative habituation across treatment was associated with larger reductions in symptom severity, greater global improvement, and increased odds of treatment response. Fear activation, fear variability, and nonhabituation fear decreases did not predict any outcomes. Exploratory analyses examined fear changes during habituation and nonhabituation exposures; higher peak fear during nonhabituation exposures was associated with attenuated global improvement. CONCLUSIONS: Habituation is conceptually consistent with multiple mechanistic theories and should continue to be investigated as a practical marker of initial extinction learning and possible moderator of the relationship between fear activation and outcome. Results support the importance of functional and frequent fear measurement during exposures, and discussion considers implications of these findings for future studies aiming to understand learning during exposure and improve exposure delivery. (PsycINFO Database Record

Assessing Acute Secondary Treatment Outcomes in Early-Onset Obsessive-Compulsive Disorder.

Obsessive-compulsive disorder (OCD) in children under 8 years of age, referred to as early-onset OCD, has similar features to OCD in older children, including moderate to severe symptoms, impairment, and significant comorbidity. Family-based cognitive behavioral therapy (FB-CBT) has been found efficacious in reducing OCD symptoms and functional impairment in children ages 5-8 years with OCD; however, its effectiveness on reducing comorbid psychiatric symptoms in this same population has yet to be demonstrated. This study examined the acute effects of FB-CBT vs. family-based relaxation treatment over 14 weeks on measures of secondary treatment outcomes (non-OCD) in children with early-onset OCD. Children in the FB-CBT condition showed significant improvements from pre- to post-treatment on secondary outcomes, with a decrease in overall behavioral and emotional problems, internalizing symptoms, as well as overall anxiety symptom severity. Neither condition yielded significant change in externalizing symptoms. Clinical implications of these findings are considered.

Children's and Parents' Ability to Tolerate Child Distress: Impact on Cognitive Behavioral Therapy for Pediatric Obsessive Compulsive Disorder.

The present study explored the concept of tolerance for child distress in 46 children (ages 5-8), along with their mothers and fathers, who received family-based CBT for OCD. The study sought to describe baseline tolerance, changes in tolerance with treatment, and the predictive impact of tolerance on symptom improvement. Tolerance was rated by clinicians on a single item and the CY-BOCS was used to measure OCD severity. Descriptive results suggested that all participants had some difficulty tolerating the child's distress at baseline while paired t tests indicated large improvements were made over treatment (d = 1.2-2.0). Fathers' initial tolerance was significantly related to symptom improvement in a multivariate regression as were fathers' and children's changes in distress tolerance over the course of treatment. Overall, results provide support for examining tolerance of child distress including its predictive impact and potential as a supplemental intervention target.

Secondary outcomes from the pediatric obsessive compulsive disorder treatment study II.

The Pediatric Obsessive-Compulsive Disorder Treatment Study II (POTS II) investigated the benefit of serotonin reuptake inhibitor (SRI) augmentation with cognitive behavioral therapy (CBT). Primary outcomes focused on OCD symptom change and indicated benefit associated with a full course of CBT. Given that the majority of youth with OCD suffer from significant comorbid symptoms and impaired quality of life, the current study examined POTS II data for effects on secondary outcomes. Participants were 124 youth ages 7-17 years with a primary diagnosis of OCD who were partial responders to an adequate SRI trial. Participants were randomized to medication management, medication management plus instructions in cognitive behavioral therapy (CBT), or medication management plus full CBT. Acute effects on non-OCD anxiety, depression, inattention, hyperactivity, and quality of life were examined across treatment conditions. Improvement across treatment was observed for non-OCD anxiety, inattention, hyperactivity, and quality of life. Changes were generally significantly greater in the group receiving full CBT. Child-rated depression was not found to change. OCD-focused treatment lead to improvement in other areas of psychopathology and functioning. For youth who are partial responders to SRI monotherapy, augmentation with full CBT may yield the greatest benefit on these secondary outcomes. CLINICAL TRIALS REGISTRATION: Treatment of Pediatric OCD for SRI Partial Responders, Clinicaltrials.gov Identifier: NCT00074815, http://clinicaltrials.gov/show/NCT00074815.

Internet-delivered, family-based treatment for early-onset OCD: A pilot randomized trial.

OBJECTIVE: Despite advances in supported treatments for early onset obsessive-compulsive disorder (OCD), progress has been constrained by regionally limited expertise in pediatric OCD. Videoteleconferencing (VTC) methods have proved useful for extending the reach of services for older individuals, but no randomized clinical trials (RCTs) have evaluated VTC for treating early onset OCD. METHOD: RCT comparing VTC-delivered family based cognitive-behavioral therapy (FB-CBT) versus clinic-based FB-CBT in the treatment of children ages 4-8 with OCD (N = 22). Pretreatment, posttreatment, and 6-month follow-up assessments included mother-/therapist-reports and independent evaluations masked to treatment condition. Primary analyses focused on treatment retention, engagement and satisfaction. Hierarchical linear modeling preliminarily evaluated the effects of time, treatment condition, and their interactions. "Excellent response" was defined as a 1 or 2 on the Clinical Global Impressions-Improvement Scale. RESULTS: Treatment retention, engagement, alliance and satisfaction were high across conditions. Symptom trajectories and family accommodation across both conditions showed outcomes improving from baseline to posttreatment, and continuing through follow-up. At posttreatment, 72.7% of Internet cases and 60% of Clinic cases showed "excellent response," and at follow-up 80% of Internet cases and 66.7% of Clinic cases showed "excellent response." Significant condition differences were not found across outcomes. CONCLUSIONS: VTC methods may offer solutions to overcoming traditional barriers to care for early onset OCD by extending the reach of real-time expert services regardless of children's geographic proximity to quality care. (PsycINFO Database Record

Using Family-Based Exposure With Response Prevention to Treat Obsessive-Compulsive Disorder in Young Children: A Case Study.

Cognitive-behavioral therapy (CBT) using exposure with response prevention (ERP) is the treatment of choice for obsessive-compulsive disorder (OCD); however, developmental modifications should be considered when treating young children. This article presents a case study illustrating family-based CBT using ERP with a 7-year-old boy. The delivery of ERP for this case was guided by 3 main principles: (a) family involvement with a focus on reducing family accommodation, (b) understanding the functional relation between the client's obsessions and compulsions, and (c) creating conditions to facilitate habituation during exposure. Outcomes for this case indicate significant improvement in functioning and OCD symptoms. Results highlight the importance of family involvement and the applicability of using a function-based habituation framework when delivering ERP to this unique population.

Elevated Autism Spectrum Disorder Traits in Young Children with OCD.

Studies have shown a high prevalence of autistic spectrum traits in both children and adults with psychiatric disorders; however the prevalence rate has not yet been investigated in young children with OCD. The aim of the current study was to (1) determine whether ASD traits indicated by the Social Communication Questionnaire (SCQ) and the Social Responsiveness Scale (SRS) were elevated in young children with OCD who do not have a specific ASD diagnosis and (2) determine if ASD traits were associated with OCD severity. Participants (N = 127) were children ages 5-8 years enrolled in the pediatric obsessive-compulsive disorder treatment study for young children (POTS Jr.). Results indicated that the SRS showed elevated autistic traits in the sample and was associated with OCD severity whereas the SCQ did not indicate heightened ASD symptoms. Implications of these results are discussed.

Development of the pediatric accommodation scale: reliability and validity of clinician- and parent-report measures.

The present study developed parallel clinician- and parent-rated measures of family accommodation (Pediatric Accommodation Scale, PAS; Pediatric Accommodation Scale-Parent Report; PAS-PR) for youth with a primary anxiety disorder. Both measures assess frequency and impact of family accommodation on youth and families. Studying youth ages 5-17 (N=105 caregiver-youth dyads), results provide evidence for the psychometric properties of the PAS, including internal consistency, inter-rater reliability, and convergent and discriminant validity. The PAS-PR exhibited good internal consistency and convergent validity with the PAS. Nearly all parents (>95%) endorsed some accommodation and accommodation frequency was associated with parent-rated impairment (home and school), and with youth-rated impairment (school only). Greater impact of accommodation on parents was associated with parent self-reported depressive symptoms. Findings support the common occurrence of family accommodation in youth with anxiety disorders, as well as for the use of the PAS and PAS-PR to measure family accommodation in this population.

Tic-related obsessive-compulsive disorder (OCD): phenomenology and treatment outcome in the Pediatric OCD Treatment Study II.

OBJECTIVE: Prior research has shown that youth with co-occurring tic disorders and obsessive-compulsive disorder (OCD) may differ from those with non-tic-related OCD in terms of clinical characteristics and treatment responsiveness. A broad definition of "tic-related" was used to examine whether children with tics in the Pediatric OCD Treatment Study II differed from those without tics in terms of demographic and phenomenological characteristics and acute treatment outcomes. METHOD: Participants were 124 youth aged 7 to 17 years, inclusive, with a primary diagnosis of OCD who were partial responders to an adequate serotonin reuptake inhibitor (SRI) trial. Participants were randomized to medication management, medication management plus instructions in cognitive-behavioral therapy (CBT), or medication management plus full CBT. Tic status was based on the presence of motor and/or vocal tics on the Yale Global Tic Severity Scale. RESULTS: Tics were identified in 53% of the sample. Those with tic-related OCD did not differ from those with non-tic-related OCD in terms of age, family history of tics, OCD severity, OCD-related impairment, or comorbidity. Those with tics responded equally in all treatment conditions. CONCLUSION: Tic-related OCD was very prevalent using a broad definition of tic status. Results suggest that youth with this broad definition of tic-related OCD do not have increased OCD severity or inference, higher comorbidity rates or severity, or worsened functioning, and support the use of CBT in this population. This highlights the importance of not making broad assumptions about OCD symptoms most likely to occur in an individual with comorbid tics. Clinical trial registration information-Treatment of Pediatric OCD for SRI Partial Responders; http://clinicaltrials.gov; NCT00074815.