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Auteur Simon BARON-COHEN |
Documents disponibles écrits par cet auteur (221)
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Exploring autistic traits in anorexia: a clinical study / Kate TCHANTURIA in Molecular Autism, (November 2013)
[article]
Titre : Exploring autistic traits in anorexia: a clinical study Type de document : Texte imprimé et/ou numérique Auteurs : Kate TCHANTURIA, Auteur ; Emma SMITH, Auteur ; Felicitas WEINECK, Auteur ; Eliz FIDANBOYLU, Auteur ; Nikola KERN, Auteur ; Janet TREASURE, Auteur ; Simon BARON-COHEN, Auteur Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : The objectives of this study were to explore associations between autistic traits and self-reported clinical symptoms in a population with anorexia nervosa (AN). Experimental and self-report evidence reveals similarities between AN and autism spectrum condition (ASC) populations in socio-emotional and cognitive domains; this includes difficulties with empathy, set-shifting and global processing. Focusing on these similarities may lead to better tailored interventions for both conditions. A cross-sectional independent-groups design was employed. Participants with AN (n = 66) and typical controls (n = 66) completed self-report questionnaires including the Short (10-Item) Version Autism Spectrum Quotient (AQ-10) questionnaire (the first time this has been implemented in this population), the Eating Disorder Examination Questionnaire, the Hospital Anxiety and Depression Scale and the Work and Social Adjustment Scale. Group differences and the relationship between autistic traits and other questionnaire measures were investigated. The AN group had a significantly higher AQ-10 total score and a greater proportion scored above the clinical cut-off than the control group. Seven out of ten AQ-10 items significantly discriminated between groups. In the AN group, levels of autistic traits correlated with a greater self-reported anxiety and depression and a lower ability to maintain close relationships; however, eating disorder symptoms were not associated with autistic traits. Women with anorexia possess a greater number of autistic traits than typical women. AQ-10 items that discriminated between groups related to 'bigger picture' (global) thinking, inflexibility of thinking and problems with social interactions, suggesting that autistic traits may exacerbate factors that maintain the eating disorder rather than cause the eating disorder directly. Using screening instruments may improve understanding of patients' problems, leading to better tailoring of intervention. We conclude that further investigation of autistic traits in AN could inform new intervention approaches based on joint working between ASC and eating disorder services. En ligne : http://dx.doi.org/10.1186/2040-2392-4-44 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=227
in Molecular Autism > (November 2013)[article] Exploring autistic traits in anorexia: a clinical study [Texte imprimé et/ou numérique] / Kate TCHANTURIA, Auteur ; Emma SMITH, Auteur ; Felicitas WEINECK, Auteur ; Eliz FIDANBOYLU, Auteur ; Nikola KERN, Auteur ; Janet TREASURE, Auteur ; Simon BARON-COHEN, Auteur.
Langues : Anglais (eng)
in Molecular Autism > (November 2013)
Index. décimale : PER Périodiques Résumé : The objectives of this study were to explore associations between autistic traits and self-reported clinical symptoms in a population with anorexia nervosa (AN). Experimental and self-report evidence reveals similarities between AN and autism spectrum condition (ASC) populations in socio-emotional and cognitive domains; this includes difficulties with empathy, set-shifting and global processing. Focusing on these similarities may lead to better tailored interventions for both conditions. A cross-sectional independent-groups design was employed. Participants with AN (n = 66) and typical controls (n = 66) completed self-report questionnaires including the Short (10-Item) Version Autism Spectrum Quotient (AQ-10) questionnaire (the first time this has been implemented in this population), the Eating Disorder Examination Questionnaire, the Hospital Anxiety and Depression Scale and the Work and Social Adjustment Scale. Group differences and the relationship between autistic traits and other questionnaire measures were investigated. The AN group had a significantly higher AQ-10 total score and a greater proportion scored above the clinical cut-off than the control group. Seven out of ten AQ-10 items significantly discriminated between groups. In the AN group, levels of autistic traits correlated with a greater self-reported anxiety and depression and a lower ability to maintain close relationships; however, eating disorder symptoms were not associated with autistic traits. Women with anorexia possess a greater number of autistic traits than typical women. AQ-10 items that discriminated between groups related to 'bigger picture' (global) thinking, inflexibility of thinking and problems with social interactions, suggesting that autistic traits may exacerbate factors that maintain the eating disorder rather than cause the eating disorder directly. Using screening instruments may improve understanding of patients' problems, leading to better tailoring of intervention. We conclude that further investigation of autistic traits in AN could inform new intervention approaches based on joint working between ASC and eating disorder services. En ligne : http://dx.doi.org/10.1186/2040-2392-4-44 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=227 Exploring the Underdiagnosis and Prevalence of Autism Spectrum Conditions in Beijing / Xiang SUN in Autism Research, 8-3 (June 2015)
[article]
Titre : Exploring the Underdiagnosis and Prevalence of Autism Spectrum Conditions in Beijing Type de document : Texte imprimé et/ou numérique Auteurs : Xiang SUN, Auteur ; Carrie ALLISON, Auteur ; Fiona E. MATTHEWS, Auteur ; Zhixiang ZHANG, Auteur ; Bonnie AUYEUNG, Auteur ; Simon BARON-COHEN, Auteur ; Carol BRAYNE, Auteur Article en page(s) : p.250-260 Langues : Anglais (eng) Mots-clés : autism prevalence screening diagnosis CAST China Index. décimale : PER Périodiques Résumé : Previous studies reported that the prevalence of Autism Spectrum Conditions (ASC) in mainland China is much lower than estimates from developed countries (around 1%). The aim of the study is to apply current screening and standardized diagnostic instruments to a Chinese population to establish a prevalence estimate of ASC in an undiagnosed population in mainland China. We followed the design development used previously in the UK published in 2009 by Baron-Cohen and colleagues. The Mandarin Childhood Autism Spectrum Test (CAST) was validated by screening primary school pupils (n?=?737 children age 6–10 years old) in Beijing and by conducting diagnostic assessments using the Autism Diagnostic Observation Schedule and the Autism Diagnostic Interview-Revised. The prevalence estimate was generated after adjusting and imputing for missing values using the inverse probability weighting. Response was high (97%). Using the UK cutoff (?15), CAST performance has 84% sensitivity and 96% specificity (95% confidence interval [CI]: 46, 98, and 96, 97, respectively). Six out of 103 children, not previously diagnosed, were found to the meet diagnostic criteria (8.5 after adjustment, 95% CI: 1.6, 15.4). The preliminary prevalence in an undiagnosed primary school population in mainland China was 119 per 10,000 (95% CI: 53, 265). The utility of CAST is acceptable as a screening instrument for ASC in large epidemiological studies in China. Using a comparable method, the preliminary prevalence estimate of ASC in mainland China is similar to that of those from developed countries. En ligne : http://dx.doi.org/10.1002/aur.1441 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=261
in Autism Research > 8-3 (June 2015) . - p.250-260[article] Exploring the Underdiagnosis and Prevalence of Autism Spectrum Conditions in Beijing [Texte imprimé et/ou numérique] / Xiang SUN, Auteur ; Carrie ALLISON, Auteur ; Fiona E. MATTHEWS, Auteur ; Zhixiang ZHANG, Auteur ; Bonnie AUYEUNG, Auteur ; Simon BARON-COHEN, Auteur ; Carol BRAYNE, Auteur . - p.250-260.
Langues : Anglais (eng)
in Autism Research > 8-3 (June 2015) . - p.250-260
Mots-clés : autism prevalence screening diagnosis CAST China Index. décimale : PER Périodiques Résumé : Previous studies reported that the prevalence of Autism Spectrum Conditions (ASC) in mainland China is much lower than estimates from developed countries (around 1%). The aim of the study is to apply current screening and standardized diagnostic instruments to a Chinese population to establish a prevalence estimate of ASC in an undiagnosed population in mainland China. We followed the design development used previously in the UK published in 2009 by Baron-Cohen and colleagues. The Mandarin Childhood Autism Spectrum Test (CAST) was validated by screening primary school pupils (n?=?737 children age 6–10 years old) in Beijing and by conducting diagnostic assessments using the Autism Diagnostic Observation Schedule and the Autism Diagnostic Interview-Revised. The prevalence estimate was generated after adjusting and imputing for missing values using the inverse probability weighting. Response was high (97%). Using the UK cutoff (?15), CAST performance has 84% sensitivity and 96% specificity (95% confidence interval [CI]: 46, 98, and 96, 97, respectively). Six out of 103 children, not previously diagnosed, were found to the meet diagnostic criteria (8.5 after adjustment, 95% CI: 1.6, 15.4). The preliminary prevalence in an undiagnosed primary school population in mainland China was 119 per 10,000 (95% CI: 53, 265). The utility of CAST is acceptable as a screening instrument for ASC in large epidemiological studies in China. Using a comparable method, the preliminary prevalence estimate of ASC in mainland China is similar to that of those from developed countries. En ligne : http://dx.doi.org/10.1002/aur.1441 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=261 Face individual identity recognition: a potential endophenotype in autism / Ilaria MINIO-PALUELLO in Molecular Autism, 11 (2020)
[article]
Titre : Face individual identity recognition: a potential endophenotype in autism Type de document : Texte imprimé et/ou numérique Auteurs : Ilaria MINIO-PALUELLO, Auteur ; Giuseppina PORCIELLO, Auteur ; Alvaro PASCUAL-LEONE, Auteur ; Simon BARON-COHEN, Auteur Article en page(s) : 81 p. Langues : Anglais (eng) Mots-clés : Autism Emotion recognition Endophenotype Face memory Heterogeneity Individual identity recognition Prosopagnosia Social memory Theory of mind Neuroelectrics, Neosync, NovaVision, Magstim, and Cognito and is listed as an inventor on several issued and pending patents on the real-time integration of transcranial magnetic stimulation with electroencephalography and magnetic resonance imaging. The other authors declare no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Face individual identity recognition skill is heritable and independent of intellectual ability. Difficulties in face individual identity recognition are present in autistic individuals and their family members and are possibly linked to oxytocin polymorphisms in families with an autistic child. While it is reported that developmental prosopagnosia (i.e., impaired face identity recognition) occurs in 2-3% of the general population, no prosopagnosia prevalence estimate is available for autism. Furthermore, an autism within-group approach has not been reported towards characterizing impaired face memory and to investigate its possible links to social and communication difficulties. METHODS: The present study estimated the prevalence of prosopagnosia in 80 autistic adults with no intellectual disability, investigated its cognitive characteristics and links to autism symptoms' severity, personality traits, and mental state understanding from the eye region by using standardized tests and questionnaires. RESULTS: More than one third of autistic participants showed prosopagnosia. Their face memory skill was not associated with their symptom's severity, empathy, alexithymia, or general intelligence. Face identity recognition was instead linked to mental state recognition from the eye region only in autistic individuals who had prosopagnosia, and this relationship did not depend on participants' basic face perception skills. Importantly, we found that autistic participants were not aware of their face memory skills. LIMITATIONS: We did not test an epidemiological sample, and additional work is necessary to establish whether these results generalize to the entire autism spectrum. CONCLUSIONS: Impaired face individual identity recognition meets the criteria to be a potential endophenotype in autism. In the future, testing for face memory could be used to stratify autistic individuals into genetically meaningful subgroups and be translatable to autism animal models. En ligne : http://dx.doi.org/10.1186/s13229-020-00371-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=433
in Molecular Autism > 11 (2020) . - 81 p.[article] Face individual identity recognition: a potential endophenotype in autism [Texte imprimé et/ou numérique] / Ilaria MINIO-PALUELLO, Auteur ; Giuseppina PORCIELLO, Auteur ; Alvaro PASCUAL-LEONE, Auteur ; Simon BARON-COHEN, Auteur . - 81 p.
Langues : Anglais (eng)
in Molecular Autism > 11 (2020) . - 81 p.
Mots-clés : Autism Emotion recognition Endophenotype Face memory Heterogeneity Individual identity recognition Prosopagnosia Social memory Theory of mind Neuroelectrics, Neosync, NovaVision, Magstim, and Cognito and is listed as an inventor on several issued and pending patents on the real-time integration of transcranial magnetic stimulation with electroencephalography and magnetic resonance imaging. The other authors declare no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Face individual identity recognition skill is heritable and independent of intellectual ability. Difficulties in face individual identity recognition are present in autistic individuals and their family members and are possibly linked to oxytocin polymorphisms in families with an autistic child. While it is reported that developmental prosopagnosia (i.e., impaired face identity recognition) occurs in 2-3% of the general population, no prosopagnosia prevalence estimate is available for autism. Furthermore, an autism within-group approach has not been reported towards characterizing impaired face memory and to investigate its possible links to social and communication difficulties. METHODS: The present study estimated the prevalence of prosopagnosia in 80 autistic adults with no intellectual disability, investigated its cognitive characteristics and links to autism symptoms' severity, personality traits, and mental state understanding from the eye region by using standardized tests and questionnaires. RESULTS: More than one third of autistic participants showed prosopagnosia. Their face memory skill was not associated with their symptom's severity, empathy, alexithymia, or general intelligence. Face identity recognition was instead linked to mental state recognition from the eye region only in autistic individuals who had prosopagnosia, and this relationship did not depend on participants' basic face perception skills. Importantly, we found that autistic participants were not aware of their face memory skills. LIMITATIONS: We did not test an epidemiological sample, and additional work is necessary to establish whether these results generalize to the entire autism spectrum. CONCLUSIONS: Impaired face individual identity recognition meets the criteria to be a potential endophenotype in autism. In the future, testing for face memory could be used to stratify autistic individuals into genetically meaningful subgroups and be translatable to autism animal models. En ligne : http://dx.doi.org/10.1186/s13229-020-00371-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=433 Facial expression recognition is linked to clinical and neurofunctional differences in autism / Hannah MEYER-LINDENBERG in Molecular Autism, 13 (2022)
[article]
Titre : Facial expression recognition is linked to clinical and neurofunctional differences in autism Type de document : Texte imprimé et/ou numérique Auteurs : Hannah MEYER-LINDENBERG, Auteur ; Carolin MOESSNANG, Auteur ; Bethany OAKLEY, Auteur ; Jumana AHMAD, Auteur ; Luke MASON, Auteur ; Emily J. H. JONES, Auteur ; Hannah L. HAYWARD, Auteur ; Jennifer COOKE, Auteur ; Daisy CRAWLEY, Auteur ; Rosemary HOLT, Auteur ; Julian TILLMANN, Auteur ; Tony CHARMAN, Auteur ; Simon BARON-COHEN, Auteur ; Tobias BANASCHEWSKI, Auteur ; Christian BECKMANN, Auteur ; Heike TOST, Auteur ; Andreas MEYER-LINDENBERG, Auteur ; Jan K. BUITELAAR, Auteur ; Declan G. MURPHY, Auteur ; Michael J. BRAMMER, Auteur ; Eva LOTH, Auteur Article en page(s) : 43 p. Langues : Anglais (eng) Mots-clés : Humans Facial Recognition Autistic Disorder/diagnostic imaging Emotions Magnetic Resonance Imaging/methods Biomarkers Autism Spectrum Disorder Facial Expression Autism Autism spectrum disorder Clustering analysis Development Facial expression recognition Multi-site Social brain Stratification biomarkers fMRI consultant to F. Hoffmann-La Roche Ltd. and Servier and has received royalties from Sage Publications and Guilford Publications. TB served in an advisory or consultancy role for Lundbeck, Medice, Neurim Pharmaceuticals, Oberberg GmbH, Takeda, and Infectopharm. He received conference support or speaker’s fee by Lilly, Medice, and Takeda. He received royalties from Hogrefe, Kohlhammer, CIP Medien, Oxford University Press the present work is unrelated to these relationships. AM-L has received consultant fees in the past two years from Boehringer Ingelheim, Elsevier, Lundbeck Int. Neuroscience Foundation, Lundbeck AS, The Wolfson Foundation, Thieme Verlag, Sage Therapeutics, von Behring Stiftung, Fondation FondaMental, Janssen-Cilag GmbH, MedinCell, Brain Mind Institute, CISSN. Furthermore, he has received speaker fees from Italian Society of biological Psychiatry, Merz-Stiftung, Forum Werkstatt Karlsruhe, Lundbeck SAS France, BAG Psychiatrie Oberbayern. JB has been in the past 3 years a consultant to/member of advisory board of/and/or speaker for Takeda/Shire, Roche, Medice, Angelini, Janssen, and Servier. He is not an employee of any of these companies, and not a stock shareholder of any of these companies. He has no other financial or material support, including expert testimony, patents, royalties. EL is an Associate Editor at Molecular Autism. DM has been paid for advisory board work by F. Hoffmann-La Roche Ltd. and Servier, and for editorial work by Springer. The other authors declare that they have no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Difficulties in social communication are a defining clinical feature of autism. However, the underlying neurobiological heterogeneity has impeded targeted therapies and requires new approaches to identifying clinically relevant bio-behavioural subgroups. In the largest autism cohort to date, we comprehensively examined difficulties in facial expression recognition, a key process in social communication, as a bio-behavioural stratification biomarker, and validated them against clinical features and neurofunctional responses. METHODS: Between 255 and 488 participants aged 6-30 years with autism, typical development and/or mild intellectual disability completed the Karolinska Directed Emotional Faces task, the Reading the Mind in the Eyes Task and/or the Films Expression Task. We first examined mean-group differences on each test. Then, we used a novel intersection approach that compares two centroid and connectivity-based clustering methods to derive subgroups based on the combined performance across the three tasks. Measures and subgroups were then related to clinical features and neurofunctional differences measured using fMRI during a fearful face-matching task. RESULTS: We found significant mean-group differences on each expression recognition test. However, cluster analyses showed that these were driven by a low-performing autistic subgroup (~ 30% of autistic individuals who performed below 2SDs of the neurotypical mean on at least one test), while a larger subgroup (~ 70%) performed within 1SD on at least 2 tests. The low-performing subgroup also had on average significantly more social communication difficulties and lower activation in the amygdala and fusiform gyrus than the high-performing subgroup. LIMITATIONS: Findings of autism expression recognition subgroups and their characteristics require independent replication. This is currently not possible, as there is no other existing dataset that includes all relevant measures. However, we demonstrated high internal robustness (91.6%) of findings between two clustering methods with fundamentally different assumptions, which is a critical pre-condition for independent replication. CONCLUSIONS: We identified a subgroup of autistic individuals with expression recognition difficulties and showed that this related to clinical and neurobiological characteristics. If replicated, expression recognition may serve as bio-behavioural stratification biomarker and aid in the development of targeted interventions for a subgroup of autistic individuals. En ligne : http://dx.doi.org/10.1186/s13229-022-00520-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=491
in Molecular Autism > 13 (2022) . - 43 p.[article] Facial expression recognition is linked to clinical and neurofunctional differences in autism [Texte imprimé et/ou numérique] / Hannah MEYER-LINDENBERG, Auteur ; Carolin MOESSNANG, Auteur ; Bethany OAKLEY, Auteur ; Jumana AHMAD, Auteur ; Luke MASON, Auteur ; Emily J. H. JONES, Auteur ; Hannah L. HAYWARD, Auteur ; Jennifer COOKE, Auteur ; Daisy CRAWLEY, Auteur ; Rosemary HOLT, Auteur ; Julian TILLMANN, Auteur ; Tony CHARMAN, Auteur ; Simon BARON-COHEN, Auteur ; Tobias BANASCHEWSKI, Auteur ; Christian BECKMANN, Auteur ; Heike TOST, Auteur ; Andreas MEYER-LINDENBERG, Auteur ; Jan K. BUITELAAR, Auteur ; Declan G. MURPHY, Auteur ; Michael J. BRAMMER, Auteur ; Eva LOTH, Auteur . - 43 p.
Langues : Anglais (eng)
in Molecular Autism > 13 (2022) . - 43 p.
Mots-clés : Humans Facial Recognition Autistic Disorder/diagnostic imaging Emotions Magnetic Resonance Imaging/methods Biomarkers Autism Spectrum Disorder Facial Expression Autism Autism spectrum disorder Clustering analysis Development Facial expression recognition Multi-site Social brain Stratification biomarkers fMRI consultant to F. Hoffmann-La Roche Ltd. and Servier and has received royalties from Sage Publications and Guilford Publications. TB served in an advisory or consultancy role for Lundbeck, Medice, Neurim Pharmaceuticals, Oberberg GmbH, Takeda, and Infectopharm. He received conference support or speaker’s fee by Lilly, Medice, and Takeda. He received royalties from Hogrefe, Kohlhammer, CIP Medien, Oxford University Press the present work is unrelated to these relationships. AM-L has received consultant fees in the past two years from Boehringer Ingelheim, Elsevier, Lundbeck Int. Neuroscience Foundation, Lundbeck AS, The Wolfson Foundation, Thieme Verlag, Sage Therapeutics, von Behring Stiftung, Fondation FondaMental, Janssen-Cilag GmbH, MedinCell, Brain Mind Institute, CISSN. Furthermore, he has received speaker fees from Italian Society of biological Psychiatry, Merz-Stiftung, Forum Werkstatt Karlsruhe, Lundbeck SAS France, BAG Psychiatrie Oberbayern. JB has been in the past 3 years a consultant to/member of advisory board of/and/or speaker for Takeda/Shire, Roche, Medice, Angelini, Janssen, and Servier. He is not an employee of any of these companies, and not a stock shareholder of any of these companies. He has no other financial or material support, including expert testimony, patents, royalties. EL is an Associate Editor at Molecular Autism. DM has been paid for advisory board work by F. Hoffmann-La Roche Ltd. and Servier, and for editorial work by Springer. The other authors declare that they have no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Difficulties in social communication are a defining clinical feature of autism. However, the underlying neurobiological heterogeneity has impeded targeted therapies and requires new approaches to identifying clinically relevant bio-behavioural subgroups. In the largest autism cohort to date, we comprehensively examined difficulties in facial expression recognition, a key process in social communication, as a bio-behavioural stratification biomarker, and validated them against clinical features and neurofunctional responses. METHODS: Between 255 and 488 participants aged 6-30 years with autism, typical development and/or mild intellectual disability completed the Karolinska Directed Emotional Faces task, the Reading the Mind in the Eyes Task and/or the Films Expression Task. We first examined mean-group differences on each test. Then, we used a novel intersection approach that compares two centroid and connectivity-based clustering methods to derive subgroups based on the combined performance across the three tasks. Measures and subgroups were then related to clinical features and neurofunctional differences measured using fMRI during a fearful face-matching task. RESULTS: We found significant mean-group differences on each expression recognition test. However, cluster analyses showed that these were driven by a low-performing autistic subgroup (~ 30% of autistic individuals who performed below 2SDs of the neurotypical mean on at least one test), while a larger subgroup (~ 70%) performed within 1SD on at least 2 tests. The low-performing subgroup also had on average significantly more social communication difficulties and lower activation in the amygdala and fusiform gyrus than the high-performing subgroup. LIMITATIONS: Findings of autism expression recognition subgroups and their characteristics require independent replication. This is currently not possible, as there is no other existing dataset that includes all relevant measures. However, we demonstrated high internal robustness (91.6%) of findings between two clustering methods with fundamentally different assumptions, which is a critical pre-condition for independent replication. CONCLUSIONS: We identified a subgroup of autistic individuals with expression recognition difficulties and showed that this related to clinical and neurobiological characteristics. If replicated, expression recognition may serve as bio-behavioural stratification biomarker and aid in the development of targeted interventions for a subgroup of autistic individuals. En ligne : http://dx.doi.org/10.1186/s13229-022-00520-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=491 Failure to deactivate the default mode network indicates a possible endophenotype of autism / Michael D. SPENCER in Molecular Autism, (December 2012)
[article]
Titre : Failure to deactivate the default mode network indicates a possible endophenotype of autism Type de document : Texte imprimé et/ou numérique Auteurs : Michael D. SPENCER, Auteur ; Lindsay CHURA, Auteur ; Rosemary HOLT, Auteur ; John SUCKLING, Auteur ; Andrew J. CALDER, Auteur ; Edward T. BULLMORE, Auteur ; Simon BARON-COHEN, Auteur Année de publication : 2012 Article en page(s) : 9 p. Langues : Anglais (eng) Mots-clés : Autism Default mode network Functional MRI Endophenotype Index. décimale : PER Périodiques Résumé : BACKGROUND:Reduced activity during cognitively demanding tasks has been reported in the default mode network in typically developing controls and individuals with autism. However, no study has investigated the default mode network (DMN) in first-degree relatives of those with autism (such as siblings) and it is not known whether atypical activation of the DMN is specific to autism or whether it is also present in unaffected relatives. Here we use functional magnetic resonance imaging to investigate the pattern of task-related deactivation during completion of a visual search task, the Embedded Figures Task, in teenagers with autism, their unaffected siblings and typically developing controls.FINDINGS:We identified striking reductions in deactivation during the Embedded Figures Task in unaffected siblings compared to controls in brain regions corresponding to the default mode network. Adolescents with autism and their unaffected siblings similarly failed to deactivate regions, including posterior cingulate and bilateral inferior parietal cortex.CONCLUSIONS:This suggests that a failure to deactivate these regions is a functional endophenotype of autism, related to familial risk for the condition shared between individuals with autism and their siblings. En ligne : http://dx.doi.org/10.1186/2040-2392-3-15 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=202
in Molecular Autism > (December 2012) . - 9 p.[article] Failure to deactivate the default mode network indicates a possible endophenotype of autism [Texte imprimé et/ou numérique] / Michael D. SPENCER, Auteur ; Lindsay CHURA, Auteur ; Rosemary HOLT, Auteur ; John SUCKLING, Auteur ; Andrew J. CALDER, Auteur ; Edward T. BULLMORE, Auteur ; Simon BARON-COHEN, Auteur . - 2012 . - 9 p.
Langues : Anglais (eng)
in Molecular Autism > (December 2012) . - 9 p.
Mots-clés : Autism Default mode network Functional MRI Endophenotype Index. décimale : PER Périodiques Résumé : BACKGROUND:Reduced activity during cognitively demanding tasks has been reported in the default mode network in typically developing controls and individuals with autism. However, no study has investigated the default mode network (DMN) in first-degree relatives of those with autism (such as siblings) and it is not known whether atypical activation of the DMN is specific to autism or whether it is also present in unaffected relatives. Here we use functional magnetic resonance imaging to investigate the pattern of task-related deactivation during completion of a visual search task, the Embedded Figures Task, in teenagers with autism, their unaffected siblings and typically developing controls.FINDINGS:We identified striking reductions in deactivation during the Embedded Figures Task in unaffected siblings compared to controls in brain regions corresponding to the default mode network. Adolescents with autism and their unaffected siblings similarly failed to deactivate regions, including posterior cingulate and bilateral inferior parietal cortex.CONCLUSIONS:This suggests that a failure to deactivate these regions is a functional endophenotype of autism, related to familial risk for the condition shared between individuals with autism and their siblings. En ligne : http://dx.doi.org/10.1186/2040-2392-3-15 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=202 Foetal testosterone and autistic traits in 18 to 24-month-old children / Bonnie AUYEUNG in Molecular Autism, (July 2010)
PermalinkFrom molecules to neural morphology: understanding neuroinflammation in autism spectrum condition / A. M. YOUNG in Molecular Autism, 7 (2016)
PermalinkGender differences in self-reported camouflaging in autistic and non-autistic adults / Laura HULL in Autism, 24-2 (February 2020)
PermalinkGenes related to sex steroids, neural growth, and social-emotional behavior are associated with autistic traits, empathy, and Asperger syndrome / Bhismadev CHAKRABARTI in Autism Research, 2-3 (June 2009)
PermalinkGenetic variant rs17225178 in the ARNT2 gene is associated with Asperger Syndrome / Agnese DI NAPOLI in Molecular Autism, (February 2015)
PermalinkGenetic variation in GABRB3 is associated with Asperger syndrome and multiple endophenotypes relevant to autism / Varun WARRIER in Molecular Autism, (December 2013)
PermalinkGenetic variation in the oxytocin receptor (OXTR) gene is associated with Asperger Syndrome / Agnese DI NAPOLI in Molecular Autism, (September 2014)
PermalinkGenetics in psychiatry: common variant association studies / Joseph D. BUXBAUM in Molecular Autism, (March 2010)
PermalinkGiving Cambridge University students with Asperger syndrome a voice: a qualitative, interview-based study towards developing a model of best practice / Joanna HASTWELL in Good Autism Practice - GAP, 13-1 (May 2012)
PermalinkGray matter covariations and core symptoms of autism: the EU-AIMS Longitudinal European Autism Project / Ting MEI in Molecular Autism, 11 (2020)
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