Research has demonstrated that function-based interventions are most effective for addressing problem behavior. However, many function-based interventions, such as differential reinforcement of alternative behavior (DRA), rely on extinction procedures. Extinction is not feasible in all cases and can be counter-therapeutic if implemented without optimal treatment integrity. Researchers have successfully implemented DRA without extinction when various parameters of reinforcement (rate, quality, magnitude, immediacy) have been manipulated to favor alternative behavior; that is, participants engaged in higher rates of alternative behavior when reinforcement was delivered contingent on both alternative and problem behavior, but the alternative response produced better reinforcement in terms of rate, quality, magnitude, or immediacy. Parameter sensitivity, however, has been found to be idiosyncratic and therefore warrants individual assessment. Previous researchers have assessed individual sensitivities to parameters of reinforcement in the context of problem behavior; however, this resulted in problem behavior occurring during assessment, which could be problematic given severe problem behavior. The purpose of this study was to use arbitrary responses to assess individual sensitivities to quality, magnitude, and immediacy of reinforcement maintaining problem behavior and use the results to implement an intervention for problem behavior without extinction. The results indicate that arbitrary responses may be used to identify individual sensitivities to parameters of reinforcement that maintains problem behavior. Additionally, interventions were more effective when parameters for which participants were most sensitive were manipulated than when parameters for which participants were least sensitive were manipulated.

Studies have shown that increasing eye contact can be accomplished by using reinforcement, prompting, shaping, functional movement training, punishment, and self-monitoring. However, there is a lack of research that evaluates the use of technology as a way to increase eye contact. This study tested the effectiveness of a tablet application at increasing eye contact in children diagnosed with autism. The application requires the child to look at a picture of a person's face and identify the number displayed in the person's eyes in order to receive reinforcement. Data was collected immediately after training, one hour after training, and in the natural environment. The tablet application was not effective at increasing eye contact for any of the three participants. Once the tablet application was shown to be ineffective, the researcher used differential reinforcement to increase eye contact. All three participants showed an increase in eye contact once the differential reinforcement training was implemented.

Abstract Previous research has demonstrated that non-contingent reinforcement (NCR) and differential reinforcement of other behaviors (DRO) are effective procedures in reducing problem behavior of children both in and out of the classroom. However, few studies have assessed which procedure is most socially acceptable among teachers. In addition, studies have not recorded data on fidelity of implementation among teachers. A non-concurrent multiple baseline across teachers design was used to (a) demonstrate the effect of NCR and DRO on the problem behaviors of school aged children with no identified developmental disability, and (b) assess implementation fidelity of each procedure by the teacher. This study further assessed which procedure was preferred by teachers by the addition of questionnaires and a choice phase in which teachers ultimately chose which procedure to implement. Results showed that both procedures significantly reduced problem behavior across all participants, with the DRO procedure having the greatest effect. The procedure that was preferred most by teachers varied across participants. One of the three participants preferred the NCR procedure, one preferred the DRO procedure and the last participant gave mixed results between the procedure she said she preferred in the surveys and the procedure she chose to implement in the final choice phase.

Previous research on implementer preference for behavioral interventions is limited. This study empirically evaluated teachers’ preference for implementing two types of token economies in a classroom to increase on-task behavior of students. The two types of token economies were response cost and differential reinforcement of alternative behavior implemented using an interdependent group contingency. The results showed both teachers preferred response cost over differential reinforcement of alternative behavior.

The purpose of this study was to evaluate the effectiveness of video modeling of contingencies alone and/or combined with direct exposure to the contingencies in the treatment of food selectivity. Treatment procedures included sequentially introducing videos in which models consumed nonpreferred food, were exposed to differential reinforcement, or exposed to escape extinction and differential reinforcement. In addition, participants were exposed to differential reinforcement. Results indicated video modeling of differential reinforcement plus differential reinforcement may be effective at increasing consumption of some nonpreferred foods, but the results were not replicated across all foods. For one participant, consumption of one food increased with video modeling alone.

Autism spectrum disorder (ASD) affects the lives of 1 in 54 children in the United States. By definition, these children often have social communication deficits as well as restrictive and repetitive behaviors that are socially isolating. Inclusion of participants with disabilities such as ASD in classroom or group settings with peers is a high-priority goal for building skills that lead to independent living and higher quality of life for all. Balancing an individual’s class or group participation is not always easy with different levels of social skills, however. In a classroom, this can translate to difficulty in knowing how to participate in a way that is equal to that of their peers—oftentimes children with ASD do not realize that others also need a turn to speak or that other children are not as interested in their restricted ¬interests as they are. We used differential reinforcement and self-monitoring within an existing token system to reduce excess participation in group settings for some individuals, with the goal of better balancing opportunities for all group members to participate. Called "Stack the Deck," this simple intervention allowed for more uninterrupted instruction time with fewer talk outs and meltdowns from adolescents with ASD. Our intervention occurred in a clinical setting, a once-weekly social skills group utilizing the PEERS Social Skills manualized intervention for adolescents with ASD. Groups ran for 12–14 weeks in duration and taught skills such as how to make friends, how to enter and exit conversations, as well as how to host "get-togethers." Our sample size was 33, with 26 males and 7 females. These participants met criteria for autism spectrum disorder and/or had significant social impairment, and had age-appropriate verbal and cognitive abilities by parent report (later measured within the study). Across our A-B intervention, we saw changes over time when it came to participation rates for over-responders (participants who attempted to respond far above the group average during baseline) and under-responders (participants who attempted to respond at rates far below the group average during baseline), with no changes (the desired result) for individuals who were already participating at an appropriate rate. Over-responders showed the most significant changes. A secondary finding of reduced talk-outs overall within the groups was also found. These results suggest that a fairly simple group behavioral intervention was able to produce a group environment more conducive to direct instruction that has direct application to inclusive classrooms as well as clinical environments. Further research can determine if the effects within individuals seen in one setting carry over to others.

External beam radiation therapy is often used as a form of treatment for individuals diagnosed with cancer. However, because staying completely still can often be difficult for children, sedation is often used daily to remedy the need for stillness. In this document, we introduce the development, implementation, and testing of a technology designed to teach healthy children to self-monitor and control their movements. This technology monitored a child's body movement and created a continuous feedback loop, playing a preferred movie based on the amount of body movement observed. Study 1 compares the amount of body movement observed when children were instructed to remain still (instructions alone) to access to a movie contingent on maintained low rates of movement (contingent movie). Study 2 compares the amount of body movement observed in the instructions alone condition with two other conditions: non-contingent access to a movie (non-contingent movie) and contingent movie. Study 3 compares the amount of body movement observed in the instructions alone condition to the contingent movie condition over an extended period of time. Lastly, Study 4 compares the amount of body movement observed when children have previously been taught to stay still using the technology described above across various days throughout various conditions. Generally, we found three things: a) instructions alone were insufficient to produce the level of control over motion required; b) some control over motion was established in the non-contingent movie condition relative to the instructions alone condition; and c) the combination of movies and feedback contingent on movement was necessary to gain the level of control over body motion necessary to adhere to the medical protocol.

There is some discrepancy on how differential reinforcement of other behavior (DRO) and response cost (RC) affect responding within the context of token economies. We evaluated DRO and two variations of response cost with and without verbal feedback to decrease response errors in the context of academic skills for three children diagnosed with Down syndrome. The results suggest that a token economy intervention alone, with or without verbal feedback, was not effective for 2 of 3 participants. Gestural prompting was required to reduce response errors for those 2 participants and is possibly responsible for reducing response errors for the third participant.

Functional analysis procedures were used to assess and treat multiple topographies of self-injurious behavior exhibited by an individual. An experimental functional analysis indicated that one topography, hand biting, appeared to be maintained by social positive reinforcement in the form of delivery of tangible items. The analysis also provided evidence that a second form of self-injury, skin picking, was automatically reinforced. To treat positively reinforced hand biting, access to a preferred tangible was arranged contingent on the omission of biting for a prespecified time interval. Hand biting was nearly eliminated, and low rates were maintained as the schedule of reinforcement was thinned to 10 min. Competing stimulus assessments identified that magazines effectively suppressed all occurrences of skin picking; therefore, noncontingent access to magazines was implemented. Using a combination of multielement and multiple baseline designs, we were able to demonstrate that the two topographies of self-injury were maintained by independent reinforcement contingencies and that interventions corresponding to each topography and function effectively treated both behaviors.

Transplants of fetal neural tissue survive and develop in lesion cavities produced in adult rats. The present experiment tested the effect of grafting fetal hippocampal or brainstem tissue on the ability of rats with hippocampal lesions to perform on a differential reinforcement of low response rate (DRL) operant schedule. The DRL interval was 20 s. Eighty-six percent of the hippocampal grafts and 69% of the brainstem grafts developed to maturity. Inspection of sections stained using a silver technique for axis cylinders or taken from rats in which the mature transplant had been injected with Fast blue, indicated that these grafts formed connections with the host brain. Consistent with previous reports, rats with hippocampal lesions were impaired in performance of the DRL task. Rats given fetal grafts of hippocampal tissue into the hippocampal lesion site on the day of lesion production were significantly better in performance of the DRL requirement than were lesion-only rats or rats receiving grafts of fetal brainstem tissue. The results of this study confirm that grafts of fetal brain tissue can both develop in a lesion site in an adult brain and ameliorate lesion-induced behavioral deficits.