Scanpath similarity measure reveals not only a decreased social preference, but also an increased nonsocial preference in individuals with autism

Autism ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 374-386
Author(s):  
Magdalena Ewa Król ◽  
Michał Król

We compared scanpath similarity in response to repeated presentations of social and nonsocial images representing natural scenes in a sample of 30 participants with autism spectrum disorder and 32 matched typically developing individuals. We used scanpath similarity (calculated using ScanMatch) as a novel measure of attentional bias or preference, which constrains eye-movement patterns by directing attention to specific visual or semantic features of the image. We found that, compared with the control group, scanpath similarity of participants with autism was significantly higher in response to nonsocial images, and significantly lower in response to social images. Moreover, scanpaths of participants with autism were more similar to scanpaths of other participants with autism in response to nonsocial images, and less similar in response to social images. Finally, we also found that in response to nonsocial images, scanpath similarity of participants with autism did not decline with stimulus repetition to the same extent as in the control group, which suggests more perseverative attention in the autism spectrum disorder group. These results show a preferential fixation on certain elements of social stimuli in typically developing individuals compared with individuals with autism, and on certain elements of nonsocial stimuli in the autism spectrum disorder group, compared with the typically developing group.

Autism ◽  
2018 ◽  
Vol 23 (2) ◽  
pp. 424-435 ◽  
Author(s):  
Kristen Bottema-Beutel ◽  
Tiffany Woynaroski ◽  
Rebecca Louick ◽  
Elizabeth Stringer Keefe ◽  
Linda R Watson ◽  
...  

We examined differences between children with autism spectrum disorder and typically developing children over an 8-month period in: (a) longitudinal associations between expressive and receptive vocabulary and (b) the extent to which caregiver utterances provided within an “optimal” engagement state mediated the pathway from early expressive to later receptive vocabulary. In total, 59 children (28–53 months at Time 1) comprised the autism spectrum disorder group and 46 children (8–24 months at Time 1) comprised the typically developing group. Groups were matched on initial vocabulary sizes. Results showed that the association between early expressive and later receptive vocabulary was moderated by group. A moderated mediation effect was also found, indicating linguistic input provided within an optimal engagement state only mediated associations for the autism spectrum disorder group.


Autism ◽  
2020 ◽  
Vol 24 (4) ◽  
pp. 941-953 ◽  
Author(s):  
Carla A Mazefsky ◽  
Amanda Collier ◽  
Josh Golt ◽  
Greg J Siegle

Emotion dysregulation is common in autism spectrum disorder; a better understanding of the underlying neural mechanisms could inform treatment development. The tendency toward repetitive cognition in autism spectrum disorder may also increase susceptibility to perseverate on distressing stimuli, which may then increase emotion dysregulation. Therefore, this study investigated the mechanisms of sustained processing of negative information in brain activity using functional magnetic resonance imaging. We used an event-related task that alternated between emotional processing of personally relevant negative words, neutral words, and a non-emotional task. A priori criteria were developed to define heightened and sustained emotional processing, and feature conjunction analysis was conducted to identify all regions satisfying these criteria. Participants included 25 adolescents with autism spectrum disorder and 23 IQ-, age-, and gender-matched typically developing controls. Regions satisfying all a priori criteria included areas in the salience network and the prefrontal dorsolateral cortex, which are areas implicated in emotion regulation outside of autism spectrum disorder. Collectively, activity in the identified regions accounted for a significant amount of variance in emotion dysregulation in the autism spectrum disorder group. Overall, these results may provide a potential neural mechanism to explain emotion dysregulation in autism spectrum disorder, which is a significant risk factor for poor mental health. Lay abstract Many individuals with autism spectrum disorder struggle with emotions that are intense and interfering, which is referred to as emotion dysregulation. Prior research has established that individuals with autism may be more likely than individuals who are not autistic to have repetitive thoughts. It is possible that persistent thoughts about negative or distressing stimuli may contribute to emotion dysregulation in autism spectrum disorder. This study aimed to identify areas of the brain with evidence of persistent processing of negative information via functional magnetic resonance neuroimaging. We used a task that alternated between emotional processing of personally relevant negative words, neutral words, and a non-emotional task. Criteria were developed to define heightened and persistent emotional processing, and analyses were conducted to identify all brain regions satisfying these criteria. Participants included 25 adolescents with autism spectrum disorder and 23 typically developing adolescents who were similar to the autism spectrum disorder group in IQ, age, and gender ratios. Brain regions identified as having greater and continued processing following negative stimuli in the autism spectrum disorder group as compared with the typically developing group included the salience network and the prefrontal dorsolateral cortex. These areas have been previously implicated in emotion dysregulation outside of autism spectrum disorder. Collectively, brain activity in the identified regions was associated with parent-reported emotion dysregulation in the autism spectrum disorder group. These results help to identify a potential process in the brain associated with emotion dysregulation in autism spectrum disorder. This information may be useful for the development of treatments to decrease emotion dysregulation in autism spectrum disorder.


2021 ◽  
pp. 102-105
Author(s):  
Avni Gupta ◽  
Aakanksha Kharb ◽  
Sujata Sethi

INTRODUCTION: Autism Spectrum Disorder is a neurodevelopmental disorder characterized mainly by deficits in social and communication patterns. Aberrant gene environment interactions during fetal development leads to formation of minor physical anomalies such as abnormal palmar creases commonly seen in autism spectrum disorder. AIM: To compare the prevalence of abnormal palmar creases in children with autism spectrum disorder and typically developing children. METHODOLOGY:It was a case controlled cross sectional study conducted in departments of Psychiatry and Pediatrics of Pt. B.D. Sharma, PGIMS Rohtak. Fifty children of age 4-16 years with diagnosis of autism spectrum disorder (case group) and fifty typically developing children (control group) were recruited. A digital camera of 13 megapixels was used to click photographs of the palms of children. Palmar crease patterns of fifty children with diagnosis of autism spectrum disorder were compared with the control group. RESULTS:The prevalence of abnormal palmar creases in case group was higher (47%) than in control group (14%).The prevalence of Simian crease in case group was double (22%) as compared to one in control group i.e. 11%. The prevalence of Sydney crease in case group was 21%, while in control group it was only 3%. The prevalence of Suwon crease in case group was 4%,while it was not seen in control group. CONCLUSION:Children with abnormal palmar creases help in early screening of neurodevelopmental disorders such as autism spectrum disorder helping in early management of these children leading to better outcomes and alleviation of parental stress and burden


Autism ◽  
2021 ◽  
pp. 136236132110421
Author(s):  
Ariel Zucker ◽  
Yookyung Chang ◽  
Reena Maharaj ◽  
Wei Wang ◽  
Theresa Fiani ◽  
...  

When one sibling has autism spectrum disorder, the sibling relationship is often characterized by poorer quality with fewer interactions. Because sibling relationships provide a vital social framework for development, they have the capacity to be a risk or protective factor, depending on the quality of the relationship. One way to improve the quality of the sibling relationship is through typically developing sibling participation in a support group. In this study, researchers randomly assigned typically developing siblings to a 10-week support group or attention-only control group. Typically developing siblings in the support group showed significant improvements in the quality of their sibling relationship and interactions with their sibling with autism spectrum disorder compared to the control group. Autism spectrum disorder severity and externalizing behavior moderated the effects of the support group on positive affect. Findings suggest the positive impact of a support group on sibling relationships, a relationship that has the potential to be protective. Lay abstract The sibling relationship can be negatively impacted when one child has autism spectrum disorder. One way to improve the quality of that relationship is through typically developing sibling participation in a support group in which they learn about autism spectrum disorder and coping skills, develop a peer network, and discuss their feelings. Compared to participating in a similar group without a focus on autism spectrum disorder, siblings in the support group showed improvements in the quality of the sibling relationship. Findings suggest that sibling support groups can be a valuable resource to improve sibling relationship quality when one sibling has autism spectrum disorder.


2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
My Blomqvist ◽  
Göran Dahllöf ◽  
Susanne Bejerot

Dental anxiety is associated with previous distressing dental experiences, such as lack of understanding of the dentist intentions, perceptions of uncontrollability and experiences of pain during dental treatment. People with autism spectrum disorder (ASD) are impaired in building flexible predictions and expectations, which is very much needed during a dental visit. The aims of the study were to investigate if people with ASD have more negative dental experiences and a higher level of dental anxiety compared to a matched control group. Forty-seven adults with ASD and of normal intellectual performance, and 69 age- and sex-matched typically developing controls completed questionnaires on previous dental experiences and dental anxiety, the Dental Anxiety Scale, and the Dental Beliefs Survey. The ASD group experienced pain during dental treatments more often than the controls and 22% had repeatedly experienced being forced to dental treatment they were not prepared for, compared to 3% of the controls. A higher level of dental anxiety was reported by the ASD group. Dental treatment and methods for supporting the communication with patients with ASD need to be developed, in order to reduce the negative dental experiences and dental anxiety in people with ASD.


2019 ◽  
Vol 83 (2) ◽  
pp. 78-87 ◽  
Author(s):  
Liron Lamash ◽  
Gary Bedell ◽  
Naomi Josman

Introduction Although participation is an important outcome of rehabilitation interventions and a critical indicator of quality of life, few studies have focused on the participation patterns of adolescents with autism spectrum disorder in their daily activities or the environmental factors that influence such participation. This study aims to describe the participation characteristics of adolescents with autism spectrum disorder compared with typically developing peers in home, school and community and to identify supporting or hindering environmental features. Method The Participation and Environment Measure for Children and Youth was administered to 59 parents of adolescents ( M = 14.51 years) with autism spectrum disorder and a control group of 188 parents of typically developing adolescents in Israel, and the results were compared. Results Adolescents with autism spectrum disorder showed lower participation levels at home and school, and much lower levels in the community, preferring solitary activities that involve technology. Their typically developing peers participated in more activities that involved social interaction skill. In addition, parents of adolescents with autism spectrum disorder rated more environmental factors as barriers in all environments. Conclusion Participation gaps between adolescents with autism spectrum disorder and their typically developing peers should be considered when developing interventions, allocating services and creating policies to meet the unique needs of adolescents with autism spectrum disorder.


Author(s):  
Molly B. D. Prigge ◽  
Erin D. Bigler ◽  
Nicholas Lange ◽  
Jubel Morgan ◽  
Alyson Froehlich ◽  
...  

AbstractIntelligence (IQ) scores are used in educational and vocational planning for individuals with autism spectrum disorder (ASD) yet little is known about the stability of IQ throughout development. We examined longitudinal age-related IQ stability in 119 individuals with ASD (3–36 years of age at first visit) and 128 typically developing controls. Intelligence measures were collected over a 20-year period. In ASD, Full Scale (FSIQ) and Verbal (VIQ) Intelligence started lower in childhood and increased at a greater rate with age relative to the control group. By early adulthood, VIQ and working memory stabilized, whereas nonverbal and perceptual scores continued to change. Our results suggest that in individuals with ASD, IQ estimates may be dynamic in childhood and young adulthood.


Autism ◽  
2016 ◽  
Vol 21 (6) ◽  
pp. 738-748 ◽  
Author(s):  
Ewa Pisula ◽  
Monika Pudło ◽  
Monika Słowińska ◽  
Rafał Kawa ◽  
Magdalena Strząska ◽  
...  

The purpose of this study was to investigate sex differences in behavioral and emotional problems in high-functioning girls and boys with autism spectrum disorder. The results obtained by adolescents with autism spectrum disorder were compared with those of typically developing girls and boys. Correlations between parents’ and adolescents’ ratings were also analyzed. Participants were 35 girls and 35 boys with autism spectrum disorder, aged 11–18 years, matched for chronological age and full-scale IQ. The control group consisted of 24 typically developing girls and 24 boys of the same age and IQ. The parents of adolescent participants were also included in the study. The measures used were the Child Behavior Checklist (4–18) completed by parents and Youth Self-Report (11–18) completed by adolescents. The adolescents with autism spectrum disorder presented higher levels of behavioral and emotional problems than the control group, according to both the parents’ reports and the adolescents’ self-reports. No sex differences were found in that respect. More differences between the assessments of adolescents and their parents occurred in the control group, and the effect size was larger.


Autism ◽  
2017 ◽  
Vol 22 (5) ◽  
pp. 597-608 ◽  
Author(s):  
Paul A Constable ◽  
Melanie Ring ◽  
Sebastian B Gaigg ◽  
Dermot M Bowler

The Vygotsky Blocks Test assesses problem-solving styles within a theoretical framework for the development of higher mental processes devised by Vygotsky. Because both the theory and the associated test situate cognitive development within the child’s social and linguistic context, they address conceptual issues around the developmental relation between language and thought that are pertinent to development in autism. Our aim was to document the performance of adults with autism spectrum disorder on the Vygotsky Blocks Test, and our results showed that they made more errors than the typically developing participants and that these errors correlated with performance IQ. The autism spectrum disorder group also required more cues than the typically developing group to discern the conceptual structure of the blocks, a pattern that correlated with Autism Diagnostic Observational Schedule–Communication and Imagination/Creativity sub-scales. When asked to categorize the blocks in new ways, the autism spectrum disorder participants developed fewer principles on which to base new categorizations, which in contrast to the typically developing group correlated with verbal IQ and with the Imagination/Creativity sub-scale of the ADOS. These results are in line with a number of existing findings in the autism spectrum disorder literature and confirm that conceptualization in autism spectrum disorder seems to rely more on non-verbal and less on imaginative processes than in typically developing individuals. The findings represent first steps to the possibility of outlining a testable account of psychological development in autism spectrum disorder that integrates verbal, non-verbal and social factors into the transition from elementary to higher level processes.


Autism ◽  
2021 ◽  
pp. 136236132110037
Author(s):  
Patsy PS Wong ◽  
Veronica CM Wai ◽  
Raymond WS Chan ◽  
Cecilia NW Leung ◽  
Patrick WL Leung

The Hong Kong Chinese version of the Autism-Spectrum Quotient-Child and Autism-Spectrum Quotient-Adolescent were examined for their psychometric properties and specificity on screening autism spectrum disorder against attention-deficit/hyperactivity disorder. This study recruited three groups of participants: typically developing children; children with autism spectrum disorder and children with attention-deficit/hyperactivity disorder. Both the Autism-Spectrum Quotient questionnaires demonstrated satisfactory psychometric properties in terms of internal consistency, test–retest reliability and area under receiver operating characteristics curve in discriminating the autism spectrum disorder group from the attention-deficit/hyperactivity disorder and typically developing groups, separately and jointly. The optimal cutoff scores for both the Autism-Spectrum Quotient questionnaires were identified to be 76, with satisfactory sensitivity and specificity, for differentiating the autism spectrum disorder group from the typically developing group and from the typically developing and attention-deficit/hyperactivity disorder groups combined. On the contrary, both Autism-Spectrum Quotient questionnaires could not effectively differentiate the attention-deficit/hyperactivity disorder group from the typically developing group, or in other words, they did not misclassify attention-deficit/hyperactivity disorder as autism spectrum disorder because of their phenotypic overlap in social difficulties. These findings supported that both the Autism-Spectrum Quotient questionnaires were not general measures of child and adolescent psychopathology, but could claim to be more specific measures of autism spectrum disorder, given their success in identifying the autism spectrum disorder group from the attention-deficit/hyperactivity disorder/typically developing groups, while failing to differentiate the latter two groups. Lay abstract The Autism-Spectrum Quotient is a 50-item questionnaire developed to assess autistic symptoms in adults, adolescents and children. Its original version and others in different countries are known to be effective tools in identifying individuals with autism spectrum disorder. This study examined whether the Hong Kong Chinese versions of the Autism-Spectrum Quotient-Child and Autism-Spectrum Quotient-Adolescent were effective in identifying autism spectrum disorder children and adolescents. On top of comparing them with their typically developing peers, this study also included a group of children/adolescents with attention deficit/hyperactivity disorder, a disorder with similar social difficulties as autism spectrum disorder. Results showed that both the Autism-Spectrum Quotient questionnaires were effective in differentiating the autism spectrum disorder group from the typically developing and attention-deficit/hyperactivity disorder groups, separately and jointly. On the contrary, they could not identify the attention-deficit/hyperactivity disorder group from the typically developing group so that they were not misclassifying attention-deficit/hyperactivity disorder as autism spectrum disorder. These findings supported that both the Autism-Spectrum Quotient-Child and Autism-Spectrum Quotient-Adolescent were not general measures of child and adolescent psychopathology, but could claim to be specific measures of autism spectrum disorder. Such capability would enormously enhance their utility in clinical practice for identifying autism spectrum disorder children/adolescents from their typically developing peers and from those with attention-deficit/hyperactivity disorder. This is because, the latter is a common neurodevelopmental disorder frequently presented to child psychiatric clinics alongside with autism spectrum disorder.


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