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Auteur Marion LEBOYER |
Documents disponibles écrits par cet auteur (34)
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Tackling hypo and hyper sensory processing heterogeneity in autism: From clinical stratification to genetic pathways / Julian TILLMANN ; Freddy CLIQUET ; Frédérique AMSELLEM ; Anna MARUANI ; Claire LEBLOND ; Anita BEGGIATO ; David GERMANAUD ; Anouck AMESTOY ; Myriam LY-LE MOAL ; Daniel UMBRICHT ; Christopher CHATHAM ; Lorraine MURTAGH ; Manuel BOUVARD ; Marion LEBOYER ; Tony CHARMAN ; Thomas BOURGERON ; Richard DELORME ; Guillaume DUMAS ; EU-AIMS LEAP Group in Autism Research, 16-2 (February 2023)
[article]
Titre : Tackling hypo and hyper sensory processing heterogeneity in autism: From clinical stratification to genetic pathways Type de document : Texte imprimé et/ou numérique Auteurs : Julian TILLMANN, Auteur ; Freddy CLIQUET, Auteur ; Frédérique AMSELLEM, Auteur ; Anna MARUANI, Auteur ; Claire LEBLOND, Auteur ; Anita BEGGIATO, Auteur ; David GERMANAUD, Auteur ; Anouck AMESTOY, Auteur ; Myriam LY-LE MOAL, Auteur ; Daniel UMBRICHT, Auteur ; Christopher CHATHAM, Auteur ; Lorraine MURTAGH, Auteur ; Manuel BOUVARD, Auteur ; Marion LEBOYER, Auteur ; Tony CHARMAN, Auteur ; Thomas BOURGERON, Auteur ; Richard DELORME, Auteur ; Guillaume DUMAS, Auteur ; EU-AIMS LEAP Group, Auteur Article en page(s) : p.364-378 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Abstract As an integral part of autism spectrum symptoms, sensory processing issues including both hypo and hyper sensory sensitivities. These sensory specificities may result from an excitation/inhibition imbalance with a poorly understood of their level of convergence with genetic alterations in GABA-ergic and glutamatergic pathways. In our study, we aimed to characterize the hypo/hyper-sensory profile among autistic individuals. We then explored its link with the burden of deleterious mutations in a subset of individuals with available whole-genome sequencing data. To characterize the hypo/hyper-sensory profile, the differential Short Sensory Profile (dSSP) was defined as a normalized and centralized hypo/hypersensitivity ratio from the Short Sensory Profile (SSP). Including 1136 participants (533 autistic individuals, 210 first-degree relatives, and 267 controls) from two independent study samples (PARIS and LEAP), we observed a statistically significant dSSP mean difference between autistic individuals and controls, driven mostly by a high dSSP variability, with an intermediated profile represented by relatives. Our genetic analysis tended to associate the dSSP and the hyposensitivity with mutations of the GABAergic pathway. The major limitation was the dSSP difficulty to discriminate subjects with a similar quantum of hypo- and hyper-sensory symptoms to those with no such symptoms, resulting both in a similar ratio score of 0. However, the dSSP could be a relevant clinical score, and combined with additional sensory descriptions, genetics and endophenotypic substrates, will improve the exploration of the underlying neurobiological mechanisms of sensory processing differences in autism spectrum. En ligne : https://doi.org/10.1002/aur.2861 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=496
in Autism Research > 16-2 (February 2023) . - p.364-378[article] Tackling hypo and hyper sensory processing heterogeneity in autism: From clinical stratification to genetic pathways [Texte imprimé et/ou numérique] / Julian TILLMANN, Auteur ; Freddy CLIQUET, Auteur ; Frédérique AMSELLEM, Auteur ; Anna MARUANI, Auteur ; Claire LEBLOND, Auteur ; Anita BEGGIATO, Auteur ; David GERMANAUD, Auteur ; Anouck AMESTOY, Auteur ; Myriam LY-LE MOAL, Auteur ; Daniel UMBRICHT, Auteur ; Christopher CHATHAM, Auteur ; Lorraine MURTAGH, Auteur ; Manuel BOUVARD, Auteur ; Marion LEBOYER, Auteur ; Tony CHARMAN, Auteur ; Thomas BOURGERON, Auteur ; Richard DELORME, Auteur ; Guillaume DUMAS, Auteur ; EU-AIMS LEAP Group, Auteur . - p.364-378.
Langues : Anglais (eng)
in Autism Research > 16-2 (February 2023) . - p.364-378
Index. décimale : PER Périodiques Résumé : Abstract As an integral part of autism spectrum symptoms, sensory processing issues including both hypo and hyper sensory sensitivities. These sensory specificities may result from an excitation/inhibition imbalance with a poorly understood of their level of convergence with genetic alterations in GABA-ergic and glutamatergic pathways. In our study, we aimed to characterize the hypo/hyper-sensory profile among autistic individuals. We then explored its link with the burden of deleterious mutations in a subset of individuals with available whole-genome sequencing data. To characterize the hypo/hyper-sensory profile, the differential Short Sensory Profile (dSSP) was defined as a normalized and centralized hypo/hypersensitivity ratio from the Short Sensory Profile (SSP). Including 1136 participants (533 autistic individuals, 210 first-degree relatives, and 267 controls) from two independent study samples (PARIS and LEAP), we observed a statistically significant dSSP mean difference between autistic individuals and controls, driven mostly by a high dSSP variability, with an intermediated profile represented by relatives. Our genetic analysis tended to associate the dSSP and the hyposensitivity with mutations of the GABAergic pathway. The major limitation was the dSSP difficulty to discriminate subjects with a similar quantum of hypo- and hyper-sensory symptoms to those with no such symptoms, resulting both in a similar ratio score of 0. However, the dSSP could be a relevant clinical score, and combined with additional sensory descriptions, genetics and endophenotypic substrates, will improve the exploration of the underlying neurobiological mechanisms of sensory processing differences in autism spectrum. En ligne : https://doi.org/10.1002/aur.2861 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=496 The Role of Causal and Intentional Judgments in Moral Reasoning in Individuals with High Functioning Autism / Marine BUON in Journal of Autism and Developmental Disorders, 43-2 (February 2013)
[article]
Titre : The Role of Causal and Intentional Judgments in Moral Reasoning in Individuals with High Functioning Autism Type de document : Texte imprimé et/ou numérique Auteurs : Marine BUON, Auteur ; Emmanuel DUPOUX, Auteur ; Pierre JACOB, Auteur ; Pauline CHASTE, Auteur ; Marion LEBOYER, Auteur ; Tiziana ZALLA, Auteur Année de publication : 2013 Article en page(s) : p.458-470 Langues : (Eng) Mots-clés : Moral judgment Theory of mind Causal reasoning Autism Index. décimale : PER Périodiques Résumé : In the present study, we investigated the ability to assign moral responsibility and punishment in adults with high functioning autism or Asperger Syndrome (HFA/AS), using non-verbal cartoons depicting an aggression, an accidental harm or a mere coincidence. Participants were asked to evaluate the agent's causal and intentional roles, his responsibility and the punishment he deserves for his action. Adults with HFA/AS did not differ in judgments of suffering and causality from adults with typical development. However, subtle difficulties with judgments of intentional action and moral judgments were observed in participants with HFA/AS. These results are discussed in the light of emerging studies that deal with integrity of moral reasoning in individuals with autism spectrum disorders. En ligne : http://dx.doi.org/10.1007/s10803-012-1588-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=188
in Journal of Autism and Developmental Disorders > 43-2 (February 2013) . - p.458-470[article] The Role of Causal and Intentional Judgments in Moral Reasoning in Individuals with High Functioning Autism [Texte imprimé et/ou numérique] / Marine BUON, Auteur ; Emmanuel DUPOUX, Auteur ; Pierre JACOB, Auteur ; Pauline CHASTE, Auteur ; Marion LEBOYER, Auteur ; Tiziana ZALLA, Auteur . - 2013 . - p.458-470.
Langues : (Eng)
in Journal of Autism and Developmental Disorders > 43-2 (February 2013) . - p.458-470
Mots-clés : Moral judgment Theory of mind Causal reasoning Autism Index. décimale : PER Périodiques Résumé : In the present study, we investigated the ability to assign moral responsibility and punishment in adults with high functioning autism or Asperger Syndrome (HFA/AS), using non-verbal cartoons depicting an aggression, an accidental harm or a mere coincidence. Participants were asked to evaluate the agent's causal and intentional roles, his responsibility and the punishment he deserves for his action. Adults with HFA/AS did not differ in judgments of suffering and causality from adults with typical development. However, subtle difficulties with judgments of intentional action and moral judgments were observed in participants with HFA/AS. These results are discussed in the light of emerging studies that deal with integrity of moral reasoning in individuals with autism spectrum disorders. En ligne : http://dx.doi.org/10.1007/s10803-012-1588-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=188 Towards a Cognitive Phenotype for Autism: Increased Prevalence of Executive Dysfunction and Superior Spatial Span amongst Siblings of Children with Autism / Claire HUGHES in Journal of Child Psychology and Psychiatry, 40-5 (July 1999)
[article]
Titre : Towards a Cognitive Phenotype for Autism: Increased Prevalence of Executive Dysfunction and Superior Spatial Span amongst Siblings of Children with Autism Type de document : Texte imprimé et/ou numérique Auteurs : Claire HUGHES, Auteur ; Marie-Hélène PLUMET, Auteur ; Marion LEBOYER, Auteur Année de publication : 1999 Article en page(s) : p.705-718 Langues : Anglais (eng) Mots-clés : Autism siblings executive function spatial span Index. décimale : PER Périodiques Résumé : Two studies were conducted to examine executive function skills in siblings of children with autism. In Study 1, four computerised tasks (three executive tasks: the ID/ED set-shifting task; a spatial working memory task; and the Tower of London planning task; and a control spatial span task) from the CANTAB battery were used to compare 31 siblings of children with autism with 32 siblings of children with developmental delay and 32 children from unaffected families. In Study 2, the two sibling groups were compared on two manually administered executive tasks (verbal fluency and list recall). As a group, autism siblings showed superior spatial and verbal span, but a greater than expected number performed poorly on the set-shifting, planning, and verbal fluency tasks. There were no group differences in working memory performance. The implications of these findings for the broader phenotype of autism is discussed. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=124
in Journal of Child Psychology and Psychiatry > 40-5 (July 1999) . - p.705-718[article] Towards a Cognitive Phenotype for Autism: Increased Prevalence of Executive Dysfunction and Superior Spatial Span amongst Siblings of Children with Autism [Texte imprimé et/ou numérique] / Claire HUGHES, Auteur ; Marie-Hélène PLUMET, Auteur ; Marion LEBOYER, Auteur . - 1999 . - p.705-718.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 40-5 (July 1999) . - p.705-718
Mots-clés : Autism siblings executive function spatial span Index. décimale : PER Périodiques Résumé : Two studies were conducted to examine executive function skills in siblings of children with autism. In Study 1, four computerised tasks (three executive tasks: the ID/ED set-shifting task; a spatial working memory task; and the Tower of London planning task; and a control spatial span task) from the CANTAB battery were used to compare 31 siblings of children with autism with 32 siblings of children with developmental delay and 32 children from unaffected families. In Study 2, the two sibling groups were compared on two manually administered executive tasks (verbal fluency and list recall). As a group, autism siblings showed superior spatial and verbal span, but a greater than expected number performed poorly on the set-shifting, planning, and verbal fluency tasks. There were no group differences in working memory performance. The implications of these findings for the broader phenotype of autism is discussed. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=124 Understanding the relationship between cerebellar structure and social abilities / Dorothea L. FLORIS ; Pierrick COUPÉ ; Edouard DUCHESNAY ; Angeline MIHAILOV ; Antoine GRIGIS ; Indrit BÈGUE ; Julie VICTOR ; Vincent FROUIN ; Marion LEBOYER ; Josselin HOUENOU ; Charles LAIDI in Molecular Autism, 14 (2023)
[article]
Titre : Understanding the relationship between cerebellar structure and social abilities Type de document : Texte imprimé et/ou numérique Auteurs : Dorothea L. FLORIS, Auteur ; Pierrick COUPÉ, Auteur ; Edouard DUCHESNAY, Auteur ; Angeline MIHAILOV, Auteur ; Antoine GRIGIS, Auteur ; Indrit BÈGUE, Auteur ; Julie VICTOR, Auteur ; Vincent FROUIN, Auteur ; Marion LEBOYER, Auteur ; Josselin HOUENOU, Auteur ; Charles LAIDI, Auteur Article en page(s) : 18 p. Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : BACKGROUND: The cerebellum contains more than 50% of all neurons in the brain and is involved in a broad range of cognitive functions, including social communication and social cognition. Inconsistent atypicalities in the cerebellum have been reported in individuals with autism compared to controls suggesting the limits of categorical case control comparisons. Alternatively, investigating how clinical dimensions are related to neuroanatomical features, in line with the Research Domain Criteria approach, might be more relevant. We hypothesized that the volume of the "cognitive" lobules of the cerebellum would be associated with social difficulties. METHODS: We analyzed structural MRI data from a large pediatric and transdiagnostic sample (Healthy Brain Network). We performed cerebellar parcellation with a well-validated automated segmentation pipeline (CERES). We studied how social communication abilities-assessed with the social component of the Social Responsiveness Scale (SRS)-were associated with the cerebellar structure, using linear mixed models and canonical correlation analysis. RESULTS: In 850 children and teenagers (mean age 10.8?+?3 years; range 5-18 years), we found a significant association between the cerebellum, IQ and social communication performance in our canonical correlation model. LIMITATIONS: Cerebellar parcellation relies on anatomical boundaries, which does not overlap with functional anatomy. The SRS was originally designed to identify social impairments associated with autism spectrum disorders. CONCLUSION: Our results unravel a complex relationship between cerebellar structure, social performance and IQ and provide support for the involvement of the cerebellum in social and cognitive processes. En ligne : http://dx.doi.org/10.1186/s13229-023-00551-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=513
in Molecular Autism > 14 (2023) . - 18 p.[article] Understanding the relationship between cerebellar structure and social abilities [Texte imprimé et/ou numérique] / Dorothea L. FLORIS, Auteur ; Pierrick COUPÉ, Auteur ; Edouard DUCHESNAY, Auteur ; Angeline MIHAILOV, Auteur ; Antoine GRIGIS, Auteur ; Indrit BÈGUE, Auteur ; Julie VICTOR, Auteur ; Vincent FROUIN, Auteur ; Marion LEBOYER, Auteur ; Josselin HOUENOU, Auteur ; Charles LAIDI, Auteur . - 18 p.
Langues : Anglais (eng)
in Molecular Autism > 14 (2023) . - 18 p.
Index. décimale : PER Périodiques Résumé : BACKGROUND: The cerebellum contains more than 50% of all neurons in the brain and is involved in a broad range of cognitive functions, including social communication and social cognition. Inconsistent atypicalities in the cerebellum have been reported in individuals with autism compared to controls suggesting the limits of categorical case control comparisons. Alternatively, investigating how clinical dimensions are related to neuroanatomical features, in line with the Research Domain Criteria approach, might be more relevant. We hypothesized that the volume of the "cognitive" lobules of the cerebellum would be associated with social difficulties. METHODS: We analyzed structural MRI data from a large pediatric and transdiagnostic sample (Healthy Brain Network). We performed cerebellar parcellation with a well-validated automated segmentation pipeline (CERES). We studied how social communication abilities-assessed with the social component of the Social Responsiveness Scale (SRS)-were associated with the cerebellar structure, using linear mixed models and canonical correlation analysis. RESULTS: In 850 children and teenagers (mean age 10.8?+?3 years; range 5-18 years), we found a significant association between the cerebellum, IQ and social communication performance in our canonical correlation model. LIMITATIONS: Cerebellar parcellation relies on anatomical boundaries, which does not overlap with functional anatomy. The SRS was originally designed to identify social impairments associated with autism spectrum disorders. CONCLUSION: Our results unravel a complex relationship between cerebellar structure, social performance and IQ and provide support for the involvement of the cerebellum in social and cognitive processes. En ligne : http://dx.doi.org/10.1186/s13229-023-00551-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=513