Examining stereotypy in naturalistic contexts: Differential reinforcement and context-specific redirection

Examining Procedural Variations of Delivering Competing Stimuli in the Treatment of Stereotypy

Competing stimulus assessments (CSA) are effective tools for identifying stimuli that compete with automatically reinforced behavior. However, Jennett et al. suggests there are cases for which non-contingent access to competing stimuli are insufficient at decreasing target responding and additional treatment components may be necessary. The purpose of the current study was to examine procedural variations (i.e., rotating competing items and prompted engagement) when presenting competing stimuli on increasing functional engagement and decreasing stereotypy. Following a functional analysis, a CSA was conducted to identify competing stimuli for four individuals with autism. Items identified were then used with two procedural variations. Levels of stereotypy, functional engagement, and item contact were measured. Results showed that for two participants both treatments were effective, while for the other two participants prompting functional engagement was more effective. Prompting functional engagement is likely a productive strategy for enhancing engagement with competing stimuli for automatically reinforced problem behavior as it may result in functional engagement becoming reinforcing in and of itself.

Repetitive Speech and Problem Behavior: Functional Analysis of Precurrent Contingencies

When mands and problem behavior co-occur within an individual's repertoire, a functional analysis of precurrent contingencies helps to identify any relation between the two responses, as well as the function of problem behavior. Repetitive behaviors may function similarly to mands and also co-occur with problem behavior; particularly when repetitive behavior is blocked, or when caregivers refrain from participating in repetitive behavior episodes (e.g., the repetitive behavior involves a verbal or physical interaction with a caregiver). The current study presents assessment and treatment results for two participants diagnosed with autism, who demonstrated repetitive speech and problem behavior. Informal observations suggested that problem behavior occurred when an adult failed to emit a specific response to the participant's repetitive speech. Functional analysis results confirmed the informal observations and suggested that problem behavior functioned as a precurrent response to increase the probability of reinforcement for repetitive speech. We report treatment results and discuss the application of precurrent contingency analyses for problem behavior and repetitive behavior.