Related Experiment Video
Updated: Apr 7, 2026

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
Published on: April 22, 2015
Increasing response diversity in children with autism.
Deborah A Napolitano1, Tristram Smith, Jennifer R Zarcone
1Division of Neurodevelopmental and Behavioral Pediatrics, University of Rochester School of Medicine, 601 Elmwood Ave., Box 671, Rochester, New York 14642, USA. deborah_napolitano@urmc.rochester.edu
This study explored a behavioral intervention designed to help children with autism increase the variety of their actions. By rewarding children when they performed a different behavior than they had previously, researchers observed an increase in the diversity of building-block structures created by the participants. This suggests that specific reinforcement strategies can effectively encourage more varied play and behavior in children on the autism spectrum.
Area of Science:
- Behavioral psychology research within autism spectrum disorder studies
- Applied behavior analysis including lag reinforcement schedules
Background:
Repetitive and invariant behavior patterns represent a core diagnostic criterion for individuals diagnosed with autism. Clinicians often observe that these restricted actions limit the engagement of children during play and social interactions. Prior research has shown that behavioral interventions can target specific skill deficits to improve developmental outcomes. However, limited evidence exists regarding methods to directly increase the breadth of behavioral repertoires in young learners. That uncertainty drove the need for investigating techniques that encourage novelty rather than consistency. No prior work had resolved whether specific reinforcement schedules could successfully promote varied responses in this population. This gap motivated the current exploration into structured behavioral training programs. The following analysis examines how differential reinforcement impacts the flexibility of play activities in children aged six to ten.
Purpose Of The Study:
The aim of this investigation was to evaluate the effectiveness of a lag reinforcement schedule in increasing response diversity among children with autism. Researchers sought to address the challenge of repetitive and invariant behavior patterns that often characterize this diagnostic group. By focusing on children aged six to ten, the study explored whether targeted behavioral interventions could promote greater flexibility. The team intended to determine if rewarding novel actions would lead to a wider variety of play behaviors. This work was motivated by the need to find practical solutions for expanding the limited behavioral repertoires of young learners. The authors hypothesized that differential reinforcement would serve as a key driver for behavioral change. They designed the study to test if specific reinforcement protocols could produce measurable improvements in activity variety. This research addresses the critical need for evidence-based strategies that enhance engagement and reduce restricted play patterns in clinical settings.
Main Methods:
Review Approach involved a structured behavioral intervention targeting six children between six and ten years of age. The investigators implemented a specific schedule where rewards were contingent upon the novelty of the participant's actions. Four subjects received supplemental guidance through prompting and extra instructional sessions to facilitate task performance. The team monitored the variety of building-block configurations produced by each child during the experimental periods. This design allowed for the systematic evaluation of behavioral flexibility under varying reinforcement conditions. The researchers compared baseline performance against the outcomes observed during the active intervention phase. Data collection focused on the frequency of unique responses generated by the participants. This methodology provided a clear framework for assessing the impact of the reinforcement protocol on behavioral diversity.
Main Results:
Key Findings From the Literature indicate that the intervention successfully increased the variety of building-block structures created by the participants. The researchers observed that the implementation of the reinforcement schedule led to a measurable rise in behavioral diversity across the cohort. All six children showed improvements in the range of their responses following the introduction of the protocol. The data suggest that rewarding novelty effectively reduces the reliance on repetitive actions in this group. For the four participants who received additional prompting, the combination of techniques appeared to facilitate even greater flexibility. These results demonstrate that differential reinforcement can significantly alter the behavioral patterns of children with autism. The study provides evidence that structured feedback loops are effective for promoting varied engagement. The findings highlight the potential for behavioral modifications to expand the repertoire of young learners.
Conclusions:
Synthesis and Implications suggest that the applied intervention successfully promoted a wider range of creative outputs in the participants. The authors propose that differential reinforcement serves as a viable mechanism for expanding behavioral repertoires. These findings indicate that rewarding novelty effectively counters the tendency toward invariant play patterns. The researchers maintain that combining reinforcement with prompting may further enhance the acquisition of diverse responses. This review highlights the potential for behavioral strategies to improve flexibility in children with autism spectrum disorder. The evidence supports the use of structured schedules to foster more varied engagement during play sessions. The authors conclude that such interventions offer a practical approach for clinicians working with this demographic. Future applications could explore the durability of these behavioral changes over extended timeframes.
Frequently Asked Questions
The researchers propose that a lag reinforcement schedule functions by rewarding participants only when their current action differs from a specified number of previous responses. This mechanism forces the child to select novel options to receive a reward, thereby increasing the variety of their behavioral output.
The study utilized building-block structures as the primary task for participants. By observing the different configurations children created with these blocks, the investigators could quantify the variety of their play behaviors throughout the intervention sessions.
The authors indicate that prompting plus additional training was necessary for four of the six participants to achieve the desired outcomes. This suggests that while reinforcement is powerful, some children require extra guidance to successfully navigate the requirements of the lag schedule.
The researchers relied on observational data regarding the construction of block structures. This quantitative information allowed them to track changes in response variety over time, providing a clear metric to evaluate the effectiveness of the reinforcement schedule.
The measurement focused on the variety of structures created during play. The phenomenon observed was a shift from repetitive, invariant building patterns to a more diverse range of configurations after the implementation of the differential reinforcement protocol.
The authors propose that their findings demonstrate the utility of differential reinforcement for children with autism. They suggest that clinicians can adopt these procedures to help patients move beyond restricted behavioral patterns and engage in more flexible, varied activities.
Related Concept Videos
Dose-Response Relationship: Selectivity and Specificity
Diversity of Antigen Receptors
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
Operant Conditioning Intervention
In operant conditioning, behaviors that are...
Modeling in Therapy
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in...
Autism Spectrum Disorder
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.

