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The purpose of this study was to examine the effects of using adapted science eBooks within shared reading on comprehension and task engagement of high school students with autism spectrum disorder (ASD). A grade-level science textbook was selected and converted into an eBook format, incorporating various visual and auditory features (e.g., text-to-speech, summarized sentences, highlighted keywords) and presented on an iPad. The shared reading intervention included before, during, and after reading strategies (i.e., pre-teaching target vocabulary words, sharing information, retelling), with direct instruction on locating literal information. The intervention effects on reading comprehension and task engagement were evaluated using a single-case multiple probe design. The results of this study indicated that all participants demonstrated improvements in reading comprehension. Despite the longer intervention sessions compared to the baseline, all participants exhibited similar or enhanced levels of task engagement during the intervention sessions. The findings of this study provide empirical evidence supporting the use of adapted eBooks within shared reading as a means to increase access to grade-level science texts for high school students with ASD while maintaining a high level of task engagement. This intervention holds promise for improving the learning outcomes for students with ASD in science content area.
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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.
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Dysregulation of the autonomic nervous system (ANS), which can be indexed by heart rate variability (HRV), has been posited to contribute to core features of autism spectrum disorder (ASD). However, the relationship between ASD and HRV remains uncertain. We assessed tonic and phasic HRV of 21 children with ASD and 21 age- and IQ-matched typically developing (TD) children and examined (1) group differences in HRV and (2) associations between HRV and ASD symptomatology. Children with ASD showed significantly lower tonic HRV, but similar phasic HRV compared to TD children. Additionally, reduced tonic HRV was associated with atypical attentional responsivity in ASD. Our findings suggest ANS dysregulation is present in ASD and may contribute to atypical attentional responses to sensory stimulation.
Assuntos
Transtorno do Espectro Autista/fisiopatologia , Frequência Cardíaca , Sistema Nervoso Autônomo/fisiopatologia , Criança , Feminino , Humanos , MasculinoRESUMO
Challenging behavior is a significant barrier in accessing the general education curriculum for students with developmental disabilities. This necessitates the identification of evidence-based practices for addressing challenging behavior in inclusive settings. The purpose of our meta-analysis is to (a) quantify the magnitude of effect of interventions targeting the reduction of challenging behavior in students with developmental disabilities in inclusive educational settings and (b) determine if participant and intervention characteristics moderate intervention effects. A systematic search of academic databases was conducted to identify studies, which were evaluated for methodological rigor and analyzed for effects using Tau-U. Results indicate a strong overall effect of .94 (95% CI [.87, 1]) and moderating variables associated with behavior topography, interventionist, and intervention components were identified.
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Currículo , Deficiências do Desenvolvimento/psicologia , Crianças com Deficiência/educação , Inclusão Escolar/métodos , Criança , Crianças com Deficiência/psicologia , Humanos , Comportamento ProblemaRESUMO
The purpose of this study was to investigate the effects of a shared reading intervention on narrative story comprehension and task engagement of students with autism spectrum disorder (ASD). A single-case multiple baseline design was used, and three elementary-aged students with ASD participated in this study. The shared reading intervention included before, during, and after reading strategies (i.e., topic anticipation, dynamic reading, story retelling). Results of this study indicated that all participants demonstrated noticeable improvements in reading comprehension. Despite the longer duration of intervention sessions as compared to baseline sessions, participants showed similar or better task engagement with intervention. Improved reading outcomes were maintained at follow up for all participants. Implications for practical implementation and future research were discussed.