Efficacy of competing stimulus assessments: A summary of 35 consecutively encountered cases

Applying Techniques From Precision Medicine to Predict Challenging Behavior and Inform Clinical Resource Allocation

The identification of behavioral markers that predict the trajectory of behavior could guide the allocation of limited clinical resources to improve efficacy, efficiency, and safety. As a preliminary exploration of this possibility, we conducted a retrospective records review of incident reports for aggression displayed by residents at a secure juvenile detention center. Our purpose was to evaluate latency to first aggression as a candidate behavioral marker for predicting subsequent high-rate aggression. Our results indicate that latency to first aggression may be a high-quality predictor of subsequent high-rate aggression, and we identified specific cutoff scores that added high levels of predictive value. We use these data to demonstrate a process by which clinicians and researchers can identify predictor variables and use them to guide subsequent allocation of clinical resources. Practical, conceptual, and ethical considerations related to applications of this process as well as potential directions for future research in this area are discussed.

Characterization and Outcomes of Profoundly and Non-profoundly Autistic Individuals Admitted to a Specialized Psychiatric Inpatient Unit

PURPOSE

The prevalence of autism spectrum disorder (ASD) is currently estimated to be 1 in 36 children. While much is known about the impact of ASD on family and community functioning as well as treatment outcomes, less is known about a relatively new categorization of ASD, called "profound autism."

METHODS

The current study evaluated 14 consecutively admitted patients meeting criteria for profound autism to a specialized psychiatric inpatient and partial hospitalization program. We then selected 15 non-profoundly autistic youth admitted immediately before or after each profoundly autistic youth to serve as a comparison. Patient caregivers completed measures about parental stress and the severity and frequency of patient problem behavior, and patients participated in functional analyses of problem behavior and function-based treatment programs during their admission.

RESULTS

Results showed profoundly autistic youth spent an average of 14 more days admitted to the psychiatric unit, and they engaged in higher parent-reported severity and frequency of self-injurious and stereotypic behavior. Functional analysis results for profoundly autistic youth showed a higher occurrence of automatically reinforced problem behavior but otherwise similar results. As well, profoundly autistic youth showed a lower percentage reduction in problem behavior at the end of the psychiatric hospitalization than their non-profoundly autistic peers.

CONCLUSION

Profoundly autistic youth seem to require a high level of behavioral support, even after psychiatric hospitalization. Insurance companies and therapists need to recognize these challenges and invest sufficient resources to meet their treatment needs.

Behavioral assessment and treatment of pica: a brief report

Pica is a life-threatening behavior that is relatively common among individuals with intellectual and developmental disabilities. Pica can be conceptualized as a response chain in which the pica item acts as a discriminative stimulus for the next response (i.e. picking up the pica item), which itself acts as a discriminative stimulus for the final response (i.e. consumption). Interventions that disrupt this response chain and alter the discriminative properties of the pica stimulus may be clinically indicated. Preliminary research supports response-interruption and redirection (RIRD) with differential reinforcement of alternative behavior (DRA) as an effective intervention for pica. We evaluated this procedure in an inpatient unit with a young boy with who engaged in pica. Our outcomes provide additional support for DRA with RIRD as an effective pica treatment.

Evaluation of a latency-based competing stimulus assessment

A competing stimulus assessment is used to identify stimuli that are associated with a low level of challenging behavior and a high level of engagement. These stimuli are often used as a treatment component for challenging behavior that is maintained by automatic reinforcement. One limitation of implementing competing stimulus assessments is that they may be time consuming. The purpose of the current study was to evaluate the efficacy and efficiency of a latency-based competing stimulus assessment. During the asssessment, a therapist presented potential competing stimuli to the participants and contingent on the first occurrence of challenging behavior, the trial was terminated. The results of a brief treatment evaluation indicated that stimuli that were associated with the longest latency to challenging behavior were more effective in competing with challenging behavior relative to stimuli that were associated with shorter latencies. However, procedural modifications were necessary for one participant. The use of latency-based measures improved the efficiency of conducting a competing stimulus assessment.

Retrospective consecutive controlled case series of outcomes for functional analyses of severe destructive behavior

Functional analysis methods allow clinicians to determine the variable(s) that maintain destructive behavior. Previous reviews of functional analysis outcomes have included large samples of published and unpublished data sets (i.e., clinical samples). The purpose of this review was to conduct a large retrospective consecutive controlled case series of clinical functional analyses. We sought to identify the prevalence of differentiation, procedural modifications for undifferentiated and differentiated cases, and identified function(s) of destructive behavior. In addition, we extended the existing literature by determining whether functional analysis differentiation and function varied when single or multiple behavior topographies were consequated in the functional analysis. We discuss our findings considering previously published functional analysis reviews, provide avenues for future research, and offer suggestions for clinical practice.

Updated Recommendations for Reinforcement Schedule Thinning following Functional Communication Training

Schedule thinning is a necessary treatment procedure following the acquisition of a communication response during functional communication training. In this article, we update and extend the Hagopian et al. Behavior Analysis in Practice, 4, 4-16, (2011) review and recommendations on schedule-thinning procedures following functional communication training. Since their publication, substantial research has been published on the efficacy, efficiency, and social validity of schedule-thinning methods. We provide updated recommendations for schedule thinning based on contemporary literature that has been published since 2011, as well as discuss key areas for future research.

Application of the evolutionary theory of behavior dynamics to severe challenging behavior

The evolutionary theory of behavior dynamics (ETBD) is a genetic algorithm that applies the Darwinian principles of evolutionary biology to model how behavior changes dynamically via selection by contingencies of reinforcement. The ETBD is a complexity theory where low-level rules of selection, reproduction, and mutation operate iteratively to animate "artificial organisms" that generate emergent outcomes. Numerous studies have demonstrated the ETBD can accurately model behavior of live animals in the laboratory, and it has been applied recently to model automatically maintained self-injury. The purpose of the current series of studies was to further extend the application of the ETBD to model additional functional classes of challenging behavior and clinical procedures. Outcomes obtained with artificial organisms generally corresponded well with outcomes observed with clinical cases sourced from consecutive controlled case series studies. Conceptual and methodological considerations on the application of the ETBD to model challenging behavior are discussed.

A replication and extension of the augmented competing stimulus assessment

Augmenting competing stimulus assessments by embedding tactics to increase stimulus engagement and disrupt challenging behavior can improve outcomes of treatments for automatically maintained self-injurious behavior, even for treatment-resistant subtypes. This study replicated and extended research on augmented competing stimulus assessments by reporting outcomes for 16 consecutively encountered cases with automatically maintained self-injurious behavior (19 total applications); six participants had treatment-responsive Subtype 1 and 10 had treatment-resistant Subtypes 2 or 3. Fewer high-competition stimuli were identified for individuals with treatment-resistant subtypes. When response-promotion and disruption tactics were applied and withdrawn, outcomes improved for six of eight applications. At least one high-competition stimulus was still effective when maintenance probes were conducted for a subset of participants. Ultimately, at least one high-competition stimulus was identified for each participant. Although augmenting tactics may not be necessary for all individuals, these findings provide additional support for their efficacy with treatment-resistant self-injurious behavior.