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Auteur Mark H. JOHNSON |
Documents disponibles écrits par cet auteur (35)
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Social brain activation during mentalizing in a large autism cohort: the Longitudinal European Autism Project / Carolin MOESSNANG in Molecular Autism, 11 (2020)
[article]
Titre : Social brain activation during mentalizing in a large autism cohort: the Longitudinal European Autism Project Type de document : Texte imprimé et/ou numérique Auteurs : Carolin MOESSNANG, Auteur ; Sarah BAUMEISTER, Auteur ; Julian TILLMANN, Auteur ; David GOYARD, Auteur ; Tony CHARMAN, Auteur ; Sara AMBROSINO, Auteur ; Simon BARON-COHEN, Auteur ; Christian F. BECKMANN, Auteur ; Sven BÖLTE, Auteur ; Carsten BOURS, Auteur ; Daisy CRAWLEY, Auteur ; Flavio DELL'ACQUA, Auteur ; Sarah DURSTON, Auteur ; Christine ECKER, Auteur ; Vincent FROUIN, Auteur ; Hannah HAYWARD, Auteur ; Rosemary HOLT, Auteur ; Mark H. JOHNSON, Auteur ; Emily JONES, Auteur ; Meng-Chuan LAI, Auteur ; Michael V. LOMBARDO, Auteur ; Luke MASON, Auteur ; Marianne OLDENHINKEL, Auteur ; Antonio PERSICO, Auteur ; Antonia SAN JOSE CACERES, Auteur ; Will SPOOREN, Auteur ; Eva LOTH, Auteur ; Declan G. M. MURPHY, Auteur ; Jan K. BUITELAAR, Auteur ; Tobias BANASCHEWSKI, Auteur ; Daniel BRANDEIS, Auteur ; Heike TOST, Auteur ; Andreas MEYER-LINDENBERG, Auteur Article en page(s) : 17 p. Langues : Anglais (eng) Mots-clés : Animated shapes Autism Autism spectrum disorder Development Mentalizing Multi-site Social brain Theory of mind fMRI Science, Atheneum Partners, Blueprint Partnership, Boehringer Ingelheim, Daimler und Benz Stiftung, Elsevier, F. Hoffmann-La Roche, ICARE Schizophrenia, K. G. Jebsen Foundation, L.E.K Consulting, Lundbeck International Foundation (LINF), R. Adamczak, Roche Pharma, Science Foundation, Sumitomo Dainippon Pharma, Synapsis Foundation–Alzheimer Research Switzerland, and System Analytics, and has received lectures fees including travel fees from Boehringer Ingelheim, Fama Public Relations, Institut d’investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Janssen-Cilag, Klinikum Christophsbad, Göppingen, Lilly Deutschland, Luzerner Psychiatrie, LVR Klinikum Düsseldorf, LWL Psychiatrie Verbund Westfalen-Lippe, Otsuka Pharmaceuticals, Reunions i Ciencia S. L., Spanish Society of Psychiatry, Südwestrundfunk Fernsehen, Stern TV, and Vitos Klinikum Kurhessen. WM has received lecture or travel fees from Pfizer, Grünenthal, University of Zürich, International Association for the Study on Pain (IASP), and European Federation of IASP Chapters (EFIC). SB discloses that he has in the last 5?years acted as an author, consultant or lecturer for Shire, Medice, Roche, Eli Lilly, Prima Psychiatry, GLGroup, System Analytic, Ability Partner, Kompetento, Expo Medica, Clarion Healthcare, and Prophase. He receives royalties for textbooks and diagnostic tools from Huber/Hogrefe, Kohlhammer, and UTB. The other authors declare that they have no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism spectrum disorder (ASD) is a neurodevelopmental condition with key deficits in social functioning. It is widely assumed that the biological underpinnings of social impairment are neurofunctional alterations in the "social brain," a neural circuitry involved in inferring the mental state of a social partner. However, previous evidence comes from small-scale studies and findings have been mixed. We therefore carried out the to-date largest study on neural correlates of mentalizing in ASD. METHODS: As part of the Longitudinal European Autism Project, we performed functional magnetic resonance imaging at six European sites in a large, well-powered, and deeply phenotyped sample of individuals with ASD (N = 205) and typically developing (TD) individuals (N = 189) aged 6 to 30?years. We presented an animated shapes task to assess and comprehensively characterize social brain activation during mentalizing. We tested for effects of age, diagnosis, and their association with symptom measures, including a continuous measure of autistic traits. RESULTS: We observed robust effects of task. Within the ASD sample, autistic traits were moderately associated with functional activation in one of the key regions of the social brain, the dorsomedial prefrontal cortex. However, there were no significant effects of diagnosis on task performance and no effects of age and diagnosis on social brain responses. Besides a lack of mean group differences, our data provide no evidence for meaningful differences in the distribution of brain response measures. Extensive control analyses suggest that the lack of case-control differences was not due to a variety of potential confounders. CONCLUSIONS: Contrary to prior reports, this large-scale study does not support the assumption that altered social brain activation during mentalizing forms a common neural marker of ASD, at least with the paradigm we employed. Yet, autistic individuals show socio-behavioral deficits. Our work therefore highlights the need to interrogate social brain function with other brain measures, such as connectivity and network-based approaches, using other paradigms, or applying complementary analysis approaches to assess individual differences in this heterogeneous condition. En ligne : http://dx.doi.org/10.1186/s13229-020-0317-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=427
in Molecular Autism > 11 (2020) . - 17 p.[article] Social brain activation during mentalizing in a large autism cohort: the Longitudinal European Autism Project [Texte imprimé et/ou numérique] / Carolin MOESSNANG, Auteur ; Sarah BAUMEISTER, Auteur ; Julian TILLMANN, Auteur ; David GOYARD, Auteur ; Tony CHARMAN, Auteur ; Sara AMBROSINO, Auteur ; Simon BARON-COHEN, Auteur ; Christian F. BECKMANN, Auteur ; Sven BÖLTE, Auteur ; Carsten BOURS, Auteur ; Daisy CRAWLEY, Auteur ; Flavio DELL'ACQUA, Auteur ; Sarah DURSTON, Auteur ; Christine ECKER, Auteur ; Vincent FROUIN, Auteur ; Hannah HAYWARD, Auteur ; Rosemary HOLT, Auteur ; Mark H. JOHNSON, Auteur ; Emily JONES, Auteur ; Meng-Chuan LAI, Auteur ; Michael V. LOMBARDO, Auteur ; Luke MASON, Auteur ; Marianne OLDENHINKEL, Auteur ; Antonio PERSICO, Auteur ; Antonia SAN JOSE CACERES, Auteur ; Will SPOOREN, Auteur ; Eva LOTH, Auteur ; Declan G. M. MURPHY, Auteur ; Jan K. BUITELAAR, Auteur ; Tobias BANASCHEWSKI, Auteur ; Daniel BRANDEIS, Auteur ; Heike TOST, Auteur ; Andreas MEYER-LINDENBERG, Auteur . - 17 p.
Langues : Anglais (eng)
in Molecular Autism > 11 (2020) . - 17 p.
Mots-clés : Animated shapes Autism Autism spectrum disorder Development Mentalizing Multi-site Social brain Theory of mind fMRI Science, Atheneum Partners, Blueprint Partnership, Boehringer Ingelheim, Daimler und Benz Stiftung, Elsevier, F. Hoffmann-La Roche, ICARE Schizophrenia, K. G. Jebsen Foundation, L.E.K Consulting, Lundbeck International Foundation (LINF), R. Adamczak, Roche Pharma, Science Foundation, Sumitomo Dainippon Pharma, Synapsis Foundation–Alzheimer Research Switzerland, and System Analytics, and has received lectures fees including travel fees from Boehringer Ingelheim, Fama Public Relations, Institut d’investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Janssen-Cilag, Klinikum Christophsbad, Göppingen, Lilly Deutschland, Luzerner Psychiatrie, LVR Klinikum Düsseldorf, LWL Psychiatrie Verbund Westfalen-Lippe, Otsuka Pharmaceuticals, Reunions i Ciencia S. L., Spanish Society of Psychiatry, Südwestrundfunk Fernsehen, Stern TV, and Vitos Klinikum Kurhessen. WM has received lecture or travel fees from Pfizer, Grünenthal, University of Zürich, International Association for the Study on Pain (IASP), and European Federation of IASP Chapters (EFIC). SB discloses that he has in the last 5?years acted as an author, consultant or lecturer for Shire, Medice, Roche, Eli Lilly, Prima Psychiatry, GLGroup, System Analytic, Ability Partner, Kompetento, Expo Medica, Clarion Healthcare, and Prophase. He receives royalties for textbooks and diagnostic tools from Huber/Hogrefe, Kohlhammer, and UTB. The other authors declare that they have no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism spectrum disorder (ASD) is a neurodevelopmental condition with key deficits in social functioning. It is widely assumed that the biological underpinnings of social impairment are neurofunctional alterations in the "social brain," a neural circuitry involved in inferring the mental state of a social partner. However, previous evidence comes from small-scale studies and findings have been mixed. We therefore carried out the to-date largest study on neural correlates of mentalizing in ASD. METHODS: As part of the Longitudinal European Autism Project, we performed functional magnetic resonance imaging at six European sites in a large, well-powered, and deeply phenotyped sample of individuals with ASD (N = 205) and typically developing (TD) individuals (N = 189) aged 6 to 30?years. We presented an animated shapes task to assess and comprehensively characterize social brain activation during mentalizing. We tested for effects of age, diagnosis, and their association with symptom measures, including a continuous measure of autistic traits. RESULTS: We observed robust effects of task. Within the ASD sample, autistic traits were moderately associated with functional activation in one of the key regions of the social brain, the dorsomedial prefrontal cortex. However, there were no significant effects of diagnosis on task performance and no effects of age and diagnosis on social brain responses. Besides a lack of mean group differences, our data provide no evidence for meaningful differences in the distribution of brain response measures. Extensive control analyses suggest that the lack of case-control differences was not due to a variety of potential confounders. CONCLUSIONS: Contrary to prior reports, this large-scale study does not support the assumption that altered social brain activation during mentalizing forms a common neural marker of ASD, at least with the paradigm we employed. Yet, autistic individuals show socio-behavioral deficits. Our work therefore highlights the need to interrogate social brain function with other brain measures, such as connectivity and network-based approaches, using other paradigms, or applying complementary analysis approaches to assess individual differences in this heterogeneous condition. En ligne : http://dx.doi.org/10.1186/s13229-020-0317-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=427 Temperament in the First 2 Years of Life in Infants at High-Risk for Autism Spectrum Disorders / Sally M. CLIFFORD in Journal of Autism and Developmental Disorders, 43-3 (March 2013)
[article]
Titre : Temperament in the First 2 Years of Life in Infants at High-Risk for Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Sally M. CLIFFORD, Auteur ; Kristelle HUDRY, Auteur ; Mayada ELSABBAGH, Auteur ; Tony CHARMAN, Auteur ; Mark H. JOHNSON, Auteur Article en page(s) : p.673-686 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Broader autism phenotype High-risk siblings Temperament Index. décimale : PER Périodiques Résumé : The current study investigated early temperament in 54 infants at familial high-risk of ASD and 50 controls. Parental report of temperament was assessed around 7, 14 and 24 months of age and diagnostic assessment was conducted at 3 years. The high-risk group showed reduced Surgency at 7 and 14 months and reduced Effortful Control at 14 and 24 months, compared to controls. High-risk infants later diagnosed with ASD were distinguished from controls by a temperament profile marked by increased Perceptual Sensitivity from the first year of life, and increased Negative Affect and reduced Cuddliness in the second year of life. Temperament may be an important construct for understanding the early infant development of ASD. En ligne : http://dx.doi.org/10.1007/s10803-012-1612-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=192
in Journal of Autism and Developmental Disorders > 43-3 (March 2013) . - p.673-686[article] Temperament in the First 2 Years of Life in Infants at High-Risk for Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Sally M. CLIFFORD, Auteur ; Kristelle HUDRY, Auteur ; Mayada ELSABBAGH, Auteur ; Tony CHARMAN, Auteur ; Mark H. JOHNSON, Auteur . - p.673-686.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 43-3 (March 2013) . - p.673-686
Mots-clés : Autism spectrum disorder Broader autism phenotype High-risk siblings Temperament Index. décimale : PER Périodiques Résumé : The current study investigated early temperament in 54 infants at familial high-risk of ASD and 50 controls. Parental report of temperament was assessed around 7, 14 and 24 months of age and diagnostic assessment was conducted at 3 years. The high-risk group showed reduced Surgency at 7 and 14 months and reduced Effortful Control at 14 and 24 months, compared to controls. High-risk infants later diagnosed with ASD were distinguished from controls by a temperament profile marked by increased Perceptual Sensitivity from the first year of life, and increased Negative Affect and reduced Cuddliness in the second year of life. Temperament may be an important construct for understanding the early infant development of ASD. En ligne : http://dx.doi.org/10.1007/s10803-012-1612-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=192 Unique dynamic profiles of social attention in autistic females / Teresa DEL BIANCO in Journal of Child Psychology and Psychiatry, 63-12 (December 2022)
[article]
Titre : Unique dynamic profiles of social attention in autistic females Type de document : Texte imprimé et/ou numérique Auteurs : Teresa DEL BIANCO, Auteur ; Luke MASON, Auteur ; Meng-Chuan LAI, Auteur ; Eva LOTH, Auteur ; Julian TILLMANN, Auteur ; Tony CHARMAN, Auteur ; Hannah HAYWARD, Auteur ; Teresa GLEISSL, Auteur ; Jan K. BUITELAAR, Auteur ; Declan G. M. MURPHY, Auteur ; Simon BARON-COHEN, Auteur ; Sven BÖLTE, Auteur ; Mark H. JOHNSON, Auteur ; Emily J. H. JONES, Auteur Article en page(s) : p.1602-1614 Langues : Anglais (eng) Mots-clés : Female Humans Attention Autistic Disorder/diagnosis Cohort Studies Learning Sex Characteristics Child Adolescent Young Adult Adult Autism eye-tracking male sex differences social attention Index. décimale : PER Périodiques Résumé : BACKGROUND: Social attention affords learning opportunities across development and may contribute to individual differences in developmental trajectories, such as between male and female individuals, and in neurodevelopmental conditions, such as autism. METHODS: Using eye-tracking, we measured social attention in a large cohort of autistic (n=123) and nonautistic females (n=107), and autistic (n=330) and nonautistic males (n=204), aged 6-30 years. Using mixed Growth Curve Analysis, we modelled sex and diagnostic effects on the temporal dynamics of proportional looking time to three types of social stimuli (lean-static, naturalistic-static, and naturalistic-dynamic) and examined the link between individual differences and dimensional social and nonsocial autistic traits in autistic females and males. RESULTS: In the lean-static stimulus, average face-looking was higher in females than in males of both autistic and nonautistic groups. Differences in the dynamic pattern of face-looking were seen in autistic vs. nonautistic females, but not males, with face-looking peaking later in the trial in autistic females. In the naturalistic-dynamic stimulus, average face-looking was higher in females than in males of both groups; changes in the dynamic pattern of face looking were seen in autistic vs. nonautistic males, but not in females, with a steeper peak in nonautistic males. Lower average face-looking was associated with higher observer-measured autistic characteristics in autistic females, but not in males. CONCLUSIONS: Overall, we found stronger social attention in females to a similar degree in both autistic and nonautistic groups. Nonetheless, the dynamic profiles of social attention differed in different ways in autistic females and males compared to their nonautistic peers, and autistic traits predicted trends of average face-looking in autistic females. These findings support the role of social attention in the emergence of sex-related differences in autistic characteristics, suggesting an avenue to phenotypic stratification. En ligne : http://dx.doi.org/10.1111/jcpp.13630 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=490
in Journal of Child Psychology and Psychiatry > 63-12 (December 2022) . - p.1602-1614[article] Unique dynamic profiles of social attention in autistic females [Texte imprimé et/ou numérique] / Teresa DEL BIANCO, Auteur ; Luke MASON, Auteur ; Meng-Chuan LAI, Auteur ; Eva LOTH, Auteur ; Julian TILLMANN, Auteur ; Tony CHARMAN, Auteur ; Hannah HAYWARD, Auteur ; Teresa GLEISSL, Auteur ; Jan K. BUITELAAR, Auteur ; Declan G. M. MURPHY, Auteur ; Simon BARON-COHEN, Auteur ; Sven BÖLTE, Auteur ; Mark H. JOHNSON, Auteur ; Emily J. H. JONES, Auteur . - p.1602-1614.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 63-12 (December 2022) . - p.1602-1614
Mots-clés : Female Humans Attention Autistic Disorder/diagnosis Cohort Studies Learning Sex Characteristics Child Adolescent Young Adult Adult Autism eye-tracking male sex differences social attention Index. décimale : PER Périodiques Résumé : BACKGROUND: Social attention affords learning opportunities across development and may contribute to individual differences in developmental trajectories, such as between male and female individuals, and in neurodevelopmental conditions, such as autism. METHODS: Using eye-tracking, we measured social attention in a large cohort of autistic (n=123) and nonautistic females (n=107), and autistic (n=330) and nonautistic males (n=204), aged 6-30 years. Using mixed Growth Curve Analysis, we modelled sex and diagnostic effects on the temporal dynamics of proportional looking time to three types of social stimuli (lean-static, naturalistic-static, and naturalistic-dynamic) and examined the link between individual differences and dimensional social and nonsocial autistic traits in autistic females and males. RESULTS: In the lean-static stimulus, average face-looking was higher in females than in males of both autistic and nonautistic groups. Differences in the dynamic pattern of face-looking were seen in autistic vs. nonautistic females, but not males, with face-looking peaking later in the trial in autistic females. In the naturalistic-dynamic stimulus, average face-looking was higher in females than in males of both groups; changes in the dynamic pattern of face looking were seen in autistic vs. nonautistic males, but not in females, with a steeper peak in nonautistic males. Lower average face-looking was associated with higher observer-measured autistic characteristics in autistic females, but not in males. CONCLUSIONS: Overall, we found stronger social attention in females to a similar degree in both autistic and nonautistic groups. Nonetheless, the dynamic profiles of social attention differed in different ways in autistic females and males compared to their nonautistic peers, and autistic traits predicted trends of average face-looking in autistic females. These findings support the role of social attention in the emergence of sex-related differences in autistic characteristics, suggesting an avenue to phenotypic stratification. En ligne : http://dx.doi.org/10.1111/jcpp.13630 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=490 Using mobile health technology to assess childhood autism in low-resource community settings in India: An innovation to address the detection gap / Indu DUBEY in Autism, 28-3 (March 2024)
[article]
Titre : Using mobile health technology to assess childhood autism in low-resource community settings in India: An innovation to address the detection gap Type de document : Texte imprimé et/ou numérique Auteurs : Indu DUBEY, Auteur ; Rahul BISHAIN, Auteur ; Jayashree DASGUPTA, Auteur ; Supriya BHAVNANI, Auteur ; Matthew K. BELMONTE, Auteur ; Teodora GLIGA, Auteur ; Debarati MUKHERJEE, Auteur ; Georgia LOCKWOOD ESTRIN, Auteur ; Mark H. JOHNSON, Auteur ; Sharat CHANDRAN, Auteur ; Vikram PATEL, Auteur ; Sheffali GULATI, Auteur ; Gauri DIVAN, Auteur ; Bhismadev CHAKRABARTI, Auteur Article en page(s) : p.755-769 Langues : Anglais (eng) Mots-clés : Autism digital health global LMIC Index. décimale : PER Périodiques Résumé : A diagnosis of autism typically depends on clinical assessments by highly trained professionals. This high resource demand poses a challenge in low-resource settings. Digital assessment of neurodevelopmental symptoms by non-specialists provides a potential avenue to address this challenge. This cross-sectional case-control field study establishes proof of principle for such a digital assessment. We developed and tested an app, START, that can be administered by non-specialists to assess autism phenotypic domains (social, sensory, motor) through child performance and parent reports. N = 131 children (2-7?years old; 48 autistic, 43 intellectually disabled and 40 non-autistic typically developing) from low-resource settings in Delhi-NCR, India were assessed using START in home settings by non-specialist health workers. The two groups of children with neurodevelopmental disorders manifested lower social preference, greater sensory interest and lower fine-motor accuracy compared to their typically developing counterparts. Parent report further distinguished autistic from non-autistic children. Machine-learning analysis combining all START-derived measures demonstrated 78% classification accuracy for the three groups. Qualitative analysis of the interviews with health workers and families of the participants demonstrated high acceptability and feasibility of the app. These results provide feasibility, acceptability and proof of principle for START, and demonstrate the potential of a scalable, mobile tool for assessing neurodevelopmental conditions in low-resource settings. Lay abstract Autism is diagnosed by highly trained professionals- but most autistic people live in parts of the world that harbour few or no such autism specialists and little autism awareness. So many autistic people go undiagnosed, misdiagnosed, and misunderstood. We designed an app (START) to identify autism and related conditions in such places, in an attempt to address this global gap in access to specialists. START uses computerised games and activities for children and a questionnaire for parents to measure social, sensory, and motor skills. To check whether START can flag undiagnosed children likely to have neurodevelopmental conditions, we tested START with children whose diagnoses already were known: Non-specialist health workers with just a high-school education took START to family homes in poor neighbourhoods of Delhi, India to work with 131 two-to-seven-year-olds. Differences between typically and atypically developing children were highlighted in all three types of skills that START assesses: children with neurodevelopmental conditions preferred looking at geometric patterns rather than social scenes, were fascinated by predictable, repetitive sensory stimuli, and had more trouble with precise hand movements. Parents' responses to surveys further distinguished autistic from non-autistic children. An artificial-intelligence technique combining all these measures demonstrated that START can fairly accurately flag atypically developing children. Health workers and families endorsed START as attractive to most children, understandable to health workers, and adaptable within sometimes chaotic home and family environments. This study provides a proof of principle for START in digital screening of autism and related conditions in community settings. En ligne : https://dx.doi.org/10.1177/13623613231182801 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=523
in Autism > 28-3 (March 2024) . - p.755-769[article] Using mobile health technology to assess childhood autism in low-resource community settings in India: An innovation to address the detection gap [Texte imprimé et/ou numérique] / Indu DUBEY, Auteur ; Rahul BISHAIN, Auteur ; Jayashree DASGUPTA, Auteur ; Supriya BHAVNANI, Auteur ; Matthew K. BELMONTE, Auteur ; Teodora GLIGA, Auteur ; Debarati MUKHERJEE, Auteur ; Georgia LOCKWOOD ESTRIN, Auteur ; Mark H. JOHNSON, Auteur ; Sharat CHANDRAN, Auteur ; Vikram PATEL, Auteur ; Sheffali GULATI, Auteur ; Gauri DIVAN, Auteur ; Bhismadev CHAKRABARTI, Auteur . - p.755-769.
Langues : Anglais (eng)
in Autism > 28-3 (March 2024) . - p.755-769
Mots-clés : Autism digital health global LMIC Index. décimale : PER Périodiques Résumé : A diagnosis of autism typically depends on clinical assessments by highly trained professionals. This high resource demand poses a challenge in low-resource settings. Digital assessment of neurodevelopmental symptoms by non-specialists provides a potential avenue to address this challenge. This cross-sectional case-control field study establishes proof of principle for such a digital assessment. We developed and tested an app, START, that can be administered by non-specialists to assess autism phenotypic domains (social, sensory, motor) through child performance and parent reports. N = 131 children (2-7?years old; 48 autistic, 43 intellectually disabled and 40 non-autistic typically developing) from low-resource settings in Delhi-NCR, India were assessed using START in home settings by non-specialist health workers. The two groups of children with neurodevelopmental disorders manifested lower social preference, greater sensory interest and lower fine-motor accuracy compared to their typically developing counterparts. Parent report further distinguished autistic from non-autistic children. Machine-learning analysis combining all START-derived measures demonstrated 78% classification accuracy for the three groups. Qualitative analysis of the interviews with health workers and families of the participants demonstrated high acceptability and feasibility of the app. These results provide feasibility, acceptability and proof of principle for START, and demonstrate the potential of a scalable, mobile tool for assessing neurodevelopmental conditions in low-resource settings. Lay abstract Autism is diagnosed by highly trained professionals- but most autistic people live in parts of the world that harbour few or no such autism specialists and little autism awareness. So many autistic people go undiagnosed, misdiagnosed, and misunderstood. We designed an app (START) to identify autism and related conditions in such places, in an attempt to address this global gap in access to specialists. START uses computerised games and activities for children and a questionnaire for parents to measure social, sensory, and motor skills. To check whether START can flag undiagnosed children likely to have neurodevelopmental conditions, we tested START with children whose diagnoses already were known: Non-specialist health workers with just a high-school education took START to family homes in poor neighbourhoods of Delhi, India to work with 131 two-to-seven-year-olds. Differences between typically and atypically developing children were highlighted in all three types of skills that START assesses: children with neurodevelopmental conditions preferred looking at geometric patterns rather than social scenes, were fascinated by predictable, repetitive sensory stimuli, and had more trouble with precise hand movements. Parents' responses to surveys further distinguished autistic from non-autistic children. An artificial-intelligence technique combining all these measures demonstrated that START can fairly accurately flag atypically developing children. Health workers and families endorsed START as attractive to most children, understandable to health workers, and adaptable within sometimes chaotic home and family environments. This study provides a proof of principle for START in digital screening of autism and related conditions in community settings. En ligne : https://dx.doi.org/10.1177/13623613231182801 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=523 Visual orienting in the early broader autism phenotype: disengagement and facilitation / Mayada ELSABBAGH in Journal of Child Psychology and Psychiatry, 50-5 (May 2009)
[article]
Titre : Visual orienting in the early broader autism phenotype: disengagement and facilitation Type de document : Texte imprimé et/ou numérique Auteurs : Mayada ELSABBAGH, Auteur ; Simon BARON-COHEN, Auteur ; Gergely CSIBRA, Auteur ; Leslie TUCKER, Auteur ; Karla HOLMBOE, Auteur ; Agnes VOLEIN, Auteur ; Gillian BAIRD, Auteur ; Patrick BOLTON, Auteur ; Tony CHARMAN, Auteur ; Mark H. JOHNSON, Auteur Année de publication : 2009 Article en page(s) : p.637-642 Langues : Anglais (eng) Mots-clés : Infancy autism visual-attention gap-overlap-task disengagement Index. décimale : PER Périodiques Résumé : Background: Recent studies of infant siblings of children diagnosed with autism have allowed for a prospective approach to examine the emergence of symptoms and revealed behavioral differences in the broader autism phenotype within the early years. In the current study we focused on a set of functions associated with visual attention, previously reported to be atypical in autism.
Method: We compared performance of a group of 9–10-month-old infant siblings of children with autism to a control group with no family history of autism on the 'gap-overlap task', which measures the cost of disengaging from a central stimulus in order to fixate a peripheral one. Two measures were derived on the basis of infants' saccadic reaction times. The first is the Disengagement effect, which measures the efficiency of disengaging from a central stimulus to orient to a peripheral one. The second was a Facilitation effect, which arises when the infant is cued by a temporal gap preceding the onset of the peripheral stimulus, and would orient faster after its onset.
Results and conclusion: Infant siblings of children with autism showed longer Disengagement latencies as well as less Facilitation relative to the control group. The findings are discussed in relation to how differences in visual attention may relate to characteristics observed in autism and the broader phenotype.En ligne : http://dx.doi.org/10.1111/j.1469-7610.2008.02051.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=732
in Journal of Child Psychology and Psychiatry > 50-5 (May 2009) . - p.637-642[article] Visual orienting in the early broader autism phenotype: disengagement and facilitation [Texte imprimé et/ou numérique] / Mayada ELSABBAGH, Auteur ; Simon BARON-COHEN, Auteur ; Gergely CSIBRA, Auteur ; Leslie TUCKER, Auteur ; Karla HOLMBOE, Auteur ; Agnes VOLEIN, Auteur ; Gillian BAIRD, Auteur ; Patrick BOLTON, Auteur ; Tony CHARMAN, Auteur ; Mark H. JOHNSON, Auteur . - 2009 . - p.637-642.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 50-5 (May 2009) . - p.637-642
Mots-clés : Infancy autism visual-attention gap-overlap-task disengagement Index. décimale : PER Périodiques Résumé : Background: Recent studies of infant siblings of children diagnosed with autism have allowed for a prospective approach to examine the emergence of symptoms and revealed behavioral differences in the broader autism phenotype within the early years. In the current study we focused on a set of functions associated with visual attention, previously reported to be atypical in autism.
Method: We compared performance of a group of 9–10-month-old infant siblings of children with autism to a control group with no family history of autism on the 'gap-overlap task', which measures the cost of disengaging from a central stimulus in order to fixate a peripheral one. Two measures were derived on the basis of infants' saccadic reaction times. The first is the Disengagement effect, which measures the efficiency of disengaging from a central stimulus to orient to a peripheral one. The second was a Facilitation effect, which arises when the infant is cued by a temporal gap preceding the onset of the peripheral stimulus, and would orient faster after its onset.
Results and conclusion: Infant siblings of children with autism showed longer Disengagement latencies as well as less Facilitation relative to the control group. The findings are discussed in relation to how differences in visual attention may relate to characteristics observed in autism and the broader phenotype.En ligne : http://dx.doi.org/10.1111/j.1469-7610.2008.02051.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=732