Statistical persistence and timing characteristics of repetitive circle drawing in children with ASD

Fleury, Amanda; Kushki, Azadeh; Tanel, Nadia; Anagnostou, Evdokia; Chau, Tom

doi:10.3109/17518423.2012.758184

Cited by 18 publications

(25 citation statements)

References 59 publications

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“…The axial pressure of handwriting in ASD was rarely reported in previous studies. The present finding as to the mean axial pressure was conflict with a previous exploration by which reported a significantly lower value of axial force in ASD group [16] . Whereas, our results revealed a similar performance in axial force of children with ASD when compared to TD controls.…”

Section: Discussioncontrasting

confidence: 99%

Handwriting Movements of Chinese Children with Autism Spectrum Disorder: A Digitized Analysis Using Arabic Numeral Writing Assignments

2017

Proceedings of 2017 the 7th International Workshop on Computer Science and Engineering

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The study analyzed handwriting characteristics of Chinese autism spectrum disorders (ASD) children using Arabic numeral handwriting tasks. 10 children with ASD and 11 matched typical developing (TD) subjects were required to write Arabic numeral sequence from 0 to 9 and write the numeral 3 repetitively. Measures in spatial, kinematic and dynamic aspects were extracted. Besides, dynamic time warping (DTW) algorithm was explored to analyze the shape feature in repetitive writing task. The results indicated that the ASD children wrote with significantly larger size, higher velocity and higher acceleration in the Arabic numeral sequence task. In repetitive writing of the numeral 3, the ability in keeping similar number shapes was significantly worse for ASD children, as measured by the DTW distance. The results suggest that the designed Arabic numeral handwriting tasks are effective in evaluating handwriting skills of ASD, which would offer a reference for further research and thus contribute to targeted intervention in ASD.

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Section: Discussioncontrasting

confidence: 99%

Handwriting Movements of Chinese Children with Autism Spectrum Disorder: A Digitized Analysis Using Arabic Numeral Writing Assignments

2017

Proceedings of 2017 the 7th International Workshop on Computer Science and Engineering

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“…The lack of any group differences for drumming actions could be possibly because even TD children found the drumming actions hard; in fact, the complex drumming action was the most variable across all three groups (see Figure 4). Past studies have also reported greater movement variability during rhythmic upper- and lower-limb tasks such as drumming, maraca shaking, and walking (Fleury et al, 2013; Isenhower et al, 2012; Kaur et al, 2013; Nayate et al, 2012) as well as during discrete discontinuous actions (Fleury et al, 2013). Interestingly, Fleury et al, (2013) found that children with ASD demonstrated greater movement variability during discontinuous/discrete circle drawing but not during continuous circle drawing.…”

Section: Discussionmentioning

confidence: 97%

“…These differences in findings may be due to differences in task-specific demands across the two studies. We asked children to perform whole body gross motor movements to a metronome beat, whereas Fleury and colleagues assessed a fine motor action without additional temporal demands of synchronization with an external beat (Fleury et al, 2013). In terms of movement rates, in line with our findings, slower movement rates have been reported in children and adolescents with ASD during motor tasks such as drumming and repetitive hand movements (Biscaldi et al, 2014; Isenhower et al, 2012; Jansiewicz et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Comparing motor performance, praxis, coordination, and interpersonal synchrony between children with and without Autism Spectrum Disorder (ASD)

Kaur

Srinivasan

Bhat

2018

Research in Developmental Disabilities

218

134

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Children with Autism Spectrum Disorder (ASD) have basic motor impairments in balance, gait, and coordination as well as autism-specific impairments in praxis/motor planning and interpersonal synchrony. Majority of the current literature focuses on isolated motor behaviors or domains. Additionally, the relationship between cognition, symptom severity, and motor performance in ASD is unclear. We used a comprehensive set of measures to compare gross and fine motor, praxis/imitation, motor coordination, and interpersonal synchrony skills across three groups of children between 5 and 12 years of age: children with ASD with high IQ (HASD), children with ASD with low IQ (LASD), and typically developing (TD) children. We used the Bruininks-Oseretsky Test of Motor Proficiency and the Bilateral Motor Coordination subtest of the Sensory Integration and Praxis Tests to assess motor performance and praxis skills respectively. Children were also examined while performing simple and complex rhythmic upper and lower limb actions on their own (solo context) and with a social partner (social context). Both ASD groups had lower gross and fine motor scores, greater praxis errors in total and within various error types, lower movement rates, greater movement variability, and weaker interpersonal synchrony compared to the TD group. In addition, the LASD group had lower gross motor scores and greater mirroring errors compared to the HASD group. Overall, a variety of motor impairments are present across the entire spectrum of children with ASD, regardless of their IQ scores. Both, fine and gross motor performance significantly correlated with IQ but not with autism severity; however, praxis errors (mainly, total, overflow, and rhythmicity) strongly correlated with autism severity and not IQ. Our study findings highlight the need for clinicians and therapists to include motor evaluations and interventions in the standard-of-care of children with ASD and for the broader autism community to recognize dyspraxia as an integral part of the definition of ASD.

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“…DFA exponents (α) were calculated for every time segment to assess long-range correlations 36 , 72 , with persistence indicated by α > 0.5 for time series deviations that continue in the same direction, and anti-persistence by α < 0.5 for deviations that continue in the opposite direction 72 . DFA has been used in analyses of motor control for ASD, with evidence of long-range correlations (persistence) during a drawing task 73 . .…”

Section: Methodsmentioning

confidence: 99%

Multi-level modeling with nonlinear movement metrics to classify self-injurious behaviors in autism spectrum disorder

Cantin-Garside

Srinivasan

Ranganathan

et al. 2020

Sci Rep

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Self-injurious behavior (SIB) is among the most dangerous concerns in autism spectrum disorder (ASD), often requiring detailed and tedious management methods. Sensor-based behavioral monitoring could address the limitations of these methods, though the complex problem of classifying variable behavior should be addressed first. We aimed to address this need by developing a group-level model accounting for individual variability and potential nonlinear trends in SIB, as a secondary analysis of existing data. Ten participants with ASD and SIB engaged in free play while wearing accelerometers. Movement data were collected from > 200 episodes and 18 different types of SIB. Frequency domain and linear movement variability measures of acceleration signals were extracted to capture differences in behaviors, and metrics of nonlinear movement variability were used to quantify the complexity of SIB. The multi-level logistic regression model, comprising of 12 principal components, explained > 65% of the variance, and classified SIB with > 75% accuracy. Our findings imply that frequency-domain and movement variability metrics can effectively predict SIB. Our modeling approach yielded superior accuracy than commonly used classifiers (~ 75 vs. ~ 64% accuracy) and had superior performance compared to prior reports (~ 75 vs. ~ 69% accuracy) This work provides an approach to generating an accurate and interpretable group-level model for SIB identification, and further supports the feasibility of developing a real-time SIB monitoring system.

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Statistical persistence and timing characteristics of repetitive circle drawing in children with ASD

Abstract: Results support the hypothesis that children with ASD have an intact ability to consistently produce continuous movements, but increased variability in production of discontinuous movements.

Cited by 18 publications

References 59 publications

Handwriting Movements of Chinese Children with Autism Spectrum Disorder: A Digitized Analysis Using Arabic Numeral Writing Assignments

Handwriting Movements of Chinese Children with Autism Spectrum Disorder: A Digitized Analysis Using Arabic Numeral Writing Assignments

Comparing motor performance, praxis, coordination, and interpersonal synchrony between children with and without Autism Spectrum Disorder (ASD)

Multi-level modeling with nonlinear movement metrics to classify self-injurious behaviors in autism spectrum disorder

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