The role of task preference in the effectiveness of response interruption and redirection

Response interruption and redirection (RIRD) is a common treatment for automatically reinforced vocal stereotypy; it involves the contingent presentation of task instructions. Tasks that are included in RIRD are typically selected based on caregiver report, which may affect the efficacy of RIRD. The purpose of the current study was to evaluate the role of task preference in the efficacy of RIRD for four participants who engaged in vocal stereotypy. We conducted task-preference assessments and selected tasks of varying preferences to include in RIRD. For three out of four participants, the results showed that RIRD with higher preference tasks was not effective at reducing vocal stereotypy, whereas RIRD with lower preference tasks was effective for all participants.

Multiple schedules of conjugate reinforcement and extinction: A translational model for assessing automatically reinforced behavior

This study evaluated the extent to which a conjugate reinforcement schedule (CONJ) involving a contingency between pedaling a stationary bike and viewing a preferred movie could serve as a translational preparation for the analysis of automatically reinforced behavior. In part, researchers examined whether providing participants with either an accurate or an inaccurate rule about the extinction (EXT) component of a multiple schedule (MULT) contributed to the development of control by the MULT (CONJ EXT) schedule. Results show schedule control emerged for four of five participants who received the accurate rule and none of the five participants who received the inaccurate rule. In addition, participants who received accurate rules typically increased pedaling during CONJ components that followed two consecutive EXT components, suggesting that they experienced deprivation for audio and visual stimulation generated by pedaling. These preliminary findings suggest that researchers could use this translational preparation to identify matched interventions for some automatically reinforced behavior.

Performance of a Tic Screening Tool (MOVeIT) in Comparison to Expert Clinician Assessment in a Developmental-Behavioral Pediatrics Clinic Sample

Youth with intellectual and developmental disabilities typically have higher rates of tics and stereotypies compared to children with otherwise typical development. Differentiating between these two pediatric movement disorders can be challenging due to overlapping clinical features, but is relevant due to distinct treatment modalities. The current study evaluated sensitivity and specificity of a tic screening measure, the Motor or Vocal Inventory of Tics (MOVeIT) in a pediatric sample enriched for stereotypy and tics. Children (n=199, age 2-15 years old) receiving care in a developmental-behavioral pediatrics clinic underwent a gold-standard diagnostic assessment by a tic expert; these evaluations were compared to the MOVeIT. The MOVeIT demonstrated good sensitivity (89.8%) and relatively lower specificity (57.1%) compared to tic expert for detecting tics in the overall sample. Specificity of the MOVeIT to identify tics improved to 75% when excluding children with co-occurring stereotypy. For children with tics and co-occurring stereotypy, sensitivity remained high (91.9%) but specificity was low (39.1%). The area under the curve (AUC) value to detect tics on the MOVeIT compared to the tic expert gold standard was significantly higher for children without stereotypy (AUC=85.7%) than those with stereotypy (AUC=64.3%, p <0.01). Overall, the ability to detect tics was better in those without co-occurring stereotypy symptoms. Further work is needed to establish the utility of the MOVeIT in populations where there is a high likelihood of co-occurring tics and stereotypy and in general population settings. Accurate distinction between tics and stereotypy will guide choices for intervention and anticipatory guidance for families.

Combined Physical Training Strategies Improve Physical Fitness, Behavior, and Social Skills of Autistic Children

The present study aimed to investigate the effects of combined physical training (CPT) on social skills and physical fitness (PF) in children with ASD. Sixteen children with autism (age 6-10 years) were randomly assigned into two groups: CPT and control. The CPT group participated in a program involving ball game, rhythmic movements, and resistance training for eight weeks (three sessions per week). PF and behavior profile were assessed before and after training. CPT program had a significant effect on indicators of social skills such as stereotypic behavior and communication, as well as PF such as handgrip strength, upper and lower body power, flexibility, balance, and agility (P < 0.05). CPT in autistic children can improve indicators of social skills and PF.

Integrating Diversity, Equity, and Inclusion Readings within Coursework: Suggestions for Instructors Teaching Behavior Analysis

Behavior analysis graduate programs must train their students to be culturally responsive so that they are prepared to effectively serve a diverse clientele. One important strategy for helping students gain a culturally responsive repertoire is embedding diversity, equity, and inclusion materials into behavior analysis graduate course sequences. However, little guidance exists for selecting content related to diversity, equity, and inclusion within behavior analysis to include in behavior analytic coursework. This article provides suggested readings for diversity, equity, and inclusion within behavior analysis that can be embedded into typical course structures in behavior analysis graduate programs. Each course requirement in the Association for Behavior Analysis International's Verified Course Sequence is given specific recommendations.

The Collateral Effects of Antecedent Exercise on Stereotypy and Other Nonstereotypic Behaviors Exhibited by Individuals with Autism Spectrum Disorder: A Systematic Review

The presence of stereotypy is one of the core features exhibited by individuals diagnosed with autism spectrum disorder (ASD). Stereotypy can interfere with academic engagement and become a major barrier to appropriate education and social development of individuals with ASD. Studies have shown that antecedent physical exercise can produce reductions in stereotypy and positive collateral effects. The purpose of the current systematic review was to examine the collateral effects of antecedent physical exercise on stereotypy and engagement in nonstereotypic behaviors. The findings suggest that individuals with ASD can benefit from incorporating antecedent physical exercise with regard to stereotypy and other positive collateral behaviors. Implications of the results and areas for further research are discussed.

Exploring Subtypes of Repetitive Behavior in Children with Autism Through Functional Analysis and Wearable Technology: a Pilot Biobehavioral Assessment

Objectives

Prior research has established assessment methodologies, such as functional analysis to identify specific contexts in which restricted and repetitive behavior (RRB) occurs, and measures of heart rate variability (HRV) to index the level of autonomic arousal in individuals with autism spectrum disorder (ASD). Yet, a gap remains in integrating multiple assessment methodologies to examine the complex underlying mechanisms of RRB. This study piloted a multi-disciplinary approach to assess both the functional behavioral and neurophysiological factors that may underlie occurrences of RRB. The study (a) evaluated the effect of a modified functional analysis protocol on delineating functional subtypes of RRB and (b) explored the effect of using a wearable technology within a functional analysis on identifying the relationship between RRB and HRV.

Method

A single-case alternating treatment design was used to randomly alternate noncontingent low-stimulation and high-stimulation conditions in a modified functional analysis protocol. Simultaneous measurement of RRB and HRV was obtained through direct behavioral observations and a wristband that collects blood volume pulse, respectively. Visual analysis of time series data was used to determine the functional subtypes of RRB, and nonparametric correlational analyses were conducted to determine the association between HRV and RRB.

Results

Findings from a sample of six participants suggest preliminary effectiveness of the assessment protocol in identifying subtypes of RRB and a significant correlation between HRV and RRB.

Conclusions

This study demonstrates the potential effect and usability of a wearable technology-aided biobehavioral approach to assess RRB and HRV in individuals with ASD.

Concerns About ABA-Based Intervention: An Evaluation and Recommendations

For over 50 years, intervention methods informed by the principles of applied behavior analysis (ABA) have been empirically researched and clinically implemented for autistics/individuals diagnosed with autism spectrum disorder (ASD). Despite the plethora of evidence for the effectiveness of ABA-based interventions, some autism rights and neurodiversity activists have expressed concerns with ABA-based interventions. Concerns have included discontent with historical events and possible harm from the procedures and goals targeted. The purpose of this manuscript is to examine some expressed concerns about ABA-based intervention and suggest productive ways of moving forward to provide the best outcomes for autistics/individuals diagnosed with ASD. The authors represent stakeholders from multiple sectors including board certified behavior analysts, licensed psychologists, parents, and autistics/individuals diagnosed with ASD.

Repeating purposefully: Empowering educators with functional communication models of echolalia in Autism

BACKGROUND AND AIMS

Echolalia, the repetition of speech, is highly prevalent in school aged children with Autism. Prior research has found that individuals with echolalia use their repetitions to engage in communicatively functional speech, in the absence of self-generated speech. Educators are the natural audience for a wide vary of echoed utterances across environments and in differing contexts. The objectives of this paper were three-fold: (1) to systematically investigate how researchers identify and ascribe communicative function to echoed utterances; (2) to gather and evaluate the evidence that might assist teachers to identify and better understand echoed utterances as being communicatively purposeful; and (3) to provide teachers with evidence-informed response strategies they can use to assist their students on their journey towards more self-generated speech.

MAIN CONTRIBUTION

Prior research in the field of echolalia has generally been segmented into opposing viewpoints. A paucity of work in the echolalia field has meant that there is limited work that has sought to view how a communicative function to echolalia has been ascribed from across multiple disciplines and fields. As such, there is limited literature to guide the practice of classroom educators. This review combines communicative models from across various disciplines with the view to supporting classroom educators by providing guidance on how they might assist their students with echolalia. This review represents the first contribution to the research literature in this area.

CONCLUSIONS AND IMPLICATIONS

Research into echolalia did not originally emanate from the field of education; however, anecdotes from classroom educators were cited as the primary impetus for the creation of some of the communicatively functional models. We found that although there are many techniques that researchers have used to attribute a communicative function to echolalia, some of these can be easily employed by educators in their practice. By adopting these techniques, educators are placed in a position that may assist with the identification of communicative echolalia; subsequently they are better placed to acknowledge and respond to their students.

Stimulus Control Procedure for Reducing Vocal Stereotypies in an Autistic Child

Stereotyped vocal behavior exhibited by a seven-year-old child diagnosed with autism spectrum disorder and maintained by automatic reinforcement was placed under stimulus control through discrimination training. The training consisted of matching a green card (SD) with free access to vocal stereotypy and a red card (SD-absent) with interruption of stereotypy and vocal redirection. At the same time, appropriate behaviors were reinforced. After discrimination training, the child rarely engaged in vocal stereotypy in the red card condition and, to a greater extent, in the green card condition, demonstrating the ability to discriminate between the two different situations. After the training, the intervention began. Once they reached the latency criterion in the red stimulus condition, the child could have free access to vocal stereotypy (green card condition). The latency criterion for engaging in stereotypy was gradually increased during the red card condition and progressively decreased during the green card condition. The intervention follows a changing criterion design. This study indicates that stimulus discrimination training is a useful intervention to reduce vocal stereotypy in an autistic child.

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

This study examined stereotypy in naturalistic classroom contexts (i.e., academic programming, leisure skill acquisition) with differential reinforcement of contextually appropriate behavior (DRA). When stereotypy was problematic, redirection to the ongoing activity was provided. Contextually appropriate behavior and stereotypy were measured across all contexts prior to redirecting stereotypy to contextually appropriate behavior. Low levels of stereotypy were observed during the DRA in at least 2 contexts for all 5 participants. Context-specific redirection was added to the DRA if stereotypy persisted, and decreased stereotypy in 9 of the 10 evaluations. The results suggest that stereotypy might not be problematic in all contexts when DRA is present and redirection to contextually relevant appropriate behavior is an effective strategy.

Investigating the Matching Relationship between Physical Exercise and Stereotypic Behavior in Children with Autism

PURPOSE

Physical exercise has been shown to be effective in reducing stereotypic behaviors in children with autism spectrum disorder. One possible mechanism concerns the matching hypothesis between exercise and behavior. The present study sought to examine this matching exercise-behavior relationship.

METHODS

Participants (N = 21, 17 males and 4 females, Mage = 11.07 ± 1.44 yr, Mheight = 1.46 ± 0.99 m, and Mweight = 40.60 ± 8.25 kg), with observable forms of hand-flapping and body-rocking stereotypic behaviors, underwent three separate days of conditions, one for the control condition, one for the 10-min ball-tapping exercise condition, and one for the 10-min jogging condition, in a randomized order. The frequency of each type of stereotypic behavior was videotaped from 15 min before to 60 min after the exercise.

RESULTS

Results revealed that only hand-flapping stereotypic behaviors were significantly reduced in the ball-tapping exercise condition (P < 0.017), whereas only body-rocking stereotypic behaviors were significantly reduced in the jogging exercise condition (P < 0.017). However, the behavioral benefit diminished at 45 min after the respective exercise.

CONCLUSION

Physical exercise should be topographically matched with stereotypic behavior to produce desirable behavioral benefits in children with autism spectrum disorder.

The Effects of Vocal Stereotypy on Secondary Target Acquisition

Instructive feedback (IF) is a strategy for increasing the efficiency of targeted instruction. Previous research has demonstrated the success of IF with learners with autism spectrum disorder (ASD), but limited research exists regarding the efficacy of the intervention with individuals with ASD who engage in vocal stereotypy. The effects of 2 forms of IF were examined with a learner with ASD who engaged in vocal stereotypy. In Study 1, no intervention for vocal stereotypy was implemented. In Study 2, response interruption and redirection (RIRD) was implemented contingent on vocal stereotypy. IF before the praise statement resulted in faster acquisition of secondary targets, but only when RIRD was implemented. These results extend the IF literature by providing evidence that individuals who engage in vocal stereotypy may require concurrent intervention to increase the opportunity for indiscriminable contingencies to be established and the acquisition of secondary targets via IF.

Brief Report: Evaluating College Students' Perceptions of a Child Displaying Stereotypic Behaviors: Do Changes in Stereotypy Levels Affect Ratings?

One reason for treating stereotypic behavior is that it may negatively impact how others perceive the individual displaying the behavior, thus impeding social interactions; however, few studies have directly evaluated this possibility. As a first step toward testing this position, participants (college students) in Study 1 watched 5-min video clips of a child engaging in hand/finger motor stereotypy at varying levels (0%, 17%, 37%, and 40% of the time) while sound was muted. Following each video, participants completed a questionnaire to evaluate their perception of the child. In Study 2, additional participants completed the same questionnaire after watching the same videos with the sound unmuted to determine if the addition of vocal stereotypy altered their perceptions of the child. Results indicate that (a) observers negatively rated the child when he displayed motor stereotypy for 17% or more of a video clip and (b) the addition of vocal stereotypy yielded more negative judgements than motor stereotypy alone.

Further Analysis of the Immediate and Subsequent Effect of RIRD on Vocal Stereotypy

Although numerous studies have shown that response interruption and redirection (RIRD) can decrease vocal stereotypy displayed by children with autism spectrum disorder, relatively few have evaluated the subsequent effects of RIRD. We evaluated the immediate (when a change agent implemented RIRD) and subsequent (after a change agent discontinued RIRD) effects of RIRD on two participants' vocal stereotypy using a nonconcurrent multiple baseline design with an embedded reversal design combined with a multiple schedule. As a part of the analysis, we conducted the fourth component 25 min after the third component. In addition, we compared the effects of RIRD with 5-min and 20-min components on both participants' vocal stereotypy. Results show that (a) RIRD during either 5-min or 20-min components decreased each participant's immediate engagement in vocal stereotypy, (b) only RIRD during 20-min components decreased each participant's subsequent engagement in vocal stereotypy relative to the no intervention component, and (c) the subsequent effects of RIRD did not extend into the fourth component for either participant.