How to Test the Extreme Male Brain Theory of Autism in Terms of Foetal Androgens? / Rebecca C. KNICKMEYER in Journal of Autism and Developmental Disorders, 38-5 (May 2008)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 38-5 (May 2008) . - p.995-996 Titre : How to Test the Extreme Male Brain Theory of Autism in Terms of Foetal Androgens? Type de document : texte imprimé Auteurs : Rebecca C. KNICKMEYER, Auteur ; Simon BARON-COHEN, Auteur ; Bonnie AUYEUNG, Auteur ; Emma ASHWIN, Auteur Année de publication : 2008 Article en page(s) : p.995-996 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1007/s10803-008-0553-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=418 [article] How to Test the Extreme Male Brain Theory of Autism in Terms of Foetal Androgens? [texte imprimé] / Rebecca C. KNICKMEYER, Auteur ; Simon BARON-COHEN, Auteur ; Bonnie AUYEUNG, Auteur ; Emma ASHWIN, Auteur . - 2008 . - p.995-996. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 38-5 (May 2008) . - p.995-996 Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1007/s10803-008-0553-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=418

Longitudinal associations between the infant gut microbiome and negative affect in toddlerhood / Sarah C. VOGEL in Development and Psychopathology, 38-1 (February 2026)  

Public ISBD [article]  inDevelopment and Psychopathology > 38-1 (February 2026) . - p.301-313 Titre : Longitudinal associations between the infant gut microbiome and negative affect in toddlerhood Type de document : texte imprimé Auteurs : Sarah C. VOGEL, Auteur ; Nicolas MURGUEITIO, Auteur ; Nicole HUTH, Auteur ; Kathy SEM, Auteur ; Rebecca C. KNICKMEYER, Auteur ; Sarah J. SHORT, Auteur ; Roger MILLS-KOONCE, Auteur ; Cathi PROPPER, Auteur ; Nicholas J. WAGNER, Auteur Article en page(s) : p.301-313 Langues : Anglais (eng) Mots-clés : Gut microbiome infancy microbiome-gut-brain axis negative affect sensitive periods Index. décimale : PER Périodiques Résumé : The role of the gut microbiome in infant development has gained increasing interest in recent years. Most research on this topic has focused on the first three to four years of life because this is a critical period for developing gut-brain connections. Prior studies have identified associations between the composition and diversity of the gut microbiome in infancy and markers of temperament, including negative affect. However, the specific microbes affected, and the directionality of these associations have differed between studies, likely due to differences in the developmental period of focus and assessment approaches. In the current preregistered study, we examined connections between the gut microbiome, assessed at two time points in infancy (2 weeks and 18 months), and negative affect measured at 30 months of age in a longitudinal study of infants and their caregivers. We found that infants with higher gut microbiome diversity at 2 weeks showed more observed negative affect during a study visit at 30 months. We also found evidence for associations between specific genera of bacteria in infancy and negative affect. These results suggest associations between specific features of the gut microbiome and child behavior may differ based on timing of gut microbiome measurement. En ligne : https://dx.doi.org/10.1017/S0954579425100229 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=579 [article] Longitudinal associations between the infant gut microbiome and negative affect in toddlerhood [texte imprimé] / Sarah C. VOGEL, Auteur ; Nicolas MURGUEITIO, Auteur ; Nicole HUTH, Auteur ; Kathy SEM, Auteur ; Rebecca C. KNICKMEYER, Auteur ; Sarah J. SHORT, Auteur ; Roger MILLS-KOONCE, Auteur ; Cathi PROPPER, Auteur ; Nicholas J. WAGNER, Auteur . - p.301-313. Langues : Anglais (eng) in Development and Psychopathology > 38-1 (February 2026) . - p.301-313 Mots-clés : Gut microbiome infancy microbiome-gut-brain axis negative affect sensitive periods Index. décimale : PER Périodiques Résumé : The role of the gut microbiome in infant development has gained increasing interest in recent years. Most research on this topic has focused on the first three to four years of life because this is a critical period for developing gut-brain connections. Prior studies have identified associations between the composition and diversity of the gut microbiome in infancy and markers of temperament, including negative affect. However, the specific microbes affected, and the directionality of these associations have differed between studies, likely due to differences in the developmental period of focus and assessment approaches. In the current preregistered study, we examined connections between the gut microbiome, assessed at two time points in infancy (2 weeks and 18 months), and negative affect measured at 30 months of age in a longitudinal study of infants and their caregivers. We found that infants with higher gut microbiome diversity at 2 weeks showed more observed negative affect during a study visit at 30 months. We also found evidence for associations between specific genera of bacteria in infancy and negative affect. These results suggest associations between specific features of the gut microbiome and child behavior may differ based on timing of gut microbiome measurement. En ligne : https://dx.doi.org/10.1017/S0954579425100229 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=579

Sex-typical Play: Masculinization/Defeminization in Girls with an Autism Spectrum Condition / Rebecca C. KNICKMEYER in Journal of Autism and Developmental Disorders, 38-6 (July 2008)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 38-6 (July 2008) . - p.1028-1035 Titre : Sex-typical Play: Masculinization/Defeminization in Girls with an Autism Spectrum Condition Type de document : texte imprimé Auteurs : Rebecca C. KNICKMEYER, Auteur ; Simon BARON-COHEN, Auteur ; Sally WHEELWRIGHT, Auteur Année de publication : 2008 Article en page(s) : p.1028-1035 Langues : Anglais (eng) Mots-clés : Autism Sex-differences Play Fetal-testosterone Index. décimale : PER Périodiques Résumé : We tested the hypothesis that prenatal masculinization of the brain by androgens increases risk of developing an autism spectrum condition (ASC). Sex-typical play was measured in n = 66 children diagnosed with an ASC and n = 55 typically developing age-matched controls. Consistent with the hypothesis, girls with autism did not show the female-typical play preferences, though this was only seen on non-pretence items. Boys with autism showed a preference for male play on non-pretence items, in keeping with their sex. Girls with autism engaged in more pretend play than boys with autism, suggesting that pretence is relatively more protected in females with autism. We conclude that play preference studies in ASC provide partial support for the fetal androgen theory. En ligne : http://dx.doi.org/10.1007/s10803-007-0475-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=473 [article] Sex-typical Play: Masculinization/Defeminization in Girls with an Autism Spectrum Condition [texte imprimé] / Rebecca C. KNICKMEYER, Auteur ; Simon BARON-COHEN, Auteur ; Sally WHEELWRIGHT, Auteur . - 2008 . - p.1028-1035. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 38-6 (July 2008) . - p.1028-1035 Mots-clés : Autism Sex-differences Play Fetal-testosterone Index. décimale : PER Périodiques Résumé : We tested the hypothesis that prenatal masculinization of the brain by androgens increases risk of developing an autism spectrum condition (ASC). Sex-typical play was measured in n = 66 children diagnosed with an ASC and n = 55 typically developing age-matched controls. Consistent with the hypothesis, girls with autism did not show the female-typical play preferences, though this was only seen on non-pretence items. Boys with autism showed a preference for male play on non-pretence items, in keeping with their sex. Girls with autism engaged in more pretend play than boys with autism, suggesting that pretence is relatively more protected in females with autism. We conclude that play preference studies in ASC provide partial support for the fetal androgen theory. En ligne : http://dx.doi.org/10.1007/s10803-007-0475-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=473

The Extreme Male Brain Theory of Autism: The Role of Fetal Androgens / Simon BARON-COHEN

Public ISBD in Autism Spectrum Disorders / David G. AMARAL Titre : The Extreme Male Brain Theory of Autism: The Role of Fetal Androgens Type de document : texte imprimé Auteurs : Simon BARON-COHEN, Auteur ; Bonnie AUYEUNG, Auteur ; Emma ASHWIN, Auteur ; Rebecca C. KNICKMEYER, Auteur ; Michael V. LOMBARDO, Auteur ; Bhismadev CHAKRABARTI, Auteur Année de publication : 2011 Importance : p.991-998 Langues : Anglais (eng) Index. décimale : AUT-B AUT-B - L'Autisme - Ouvrages généraux et scientifiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=140 in Autism Spectrum Disorders / David G. AMARAL The Extreme Male Brain Theory of Autism: The Role of Fetal Androgens [texte imprimé] / Simon BARON-COHEN, Auteur ; Bonnie AUYEUNG, Auteur ; Emma ASHWIN, Auteur ; Rebecca C. KNICKMEYER, Auteur ; Michael V. LOMBARDO, Auteur ; Bhismadev CHAKRABARTI, Auteur . - 2011 . - p.991-998. Langues : Anglais (eng) Index. décimale : AUT-B AUT-B - L'Autisme - Ouvrages généraux et scientifiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=140

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Turner syndrome and sexual differentiation of the brain: implications for understanding male-biased neurodevelopmental disorders / Rebecca Christine KNICKMEYER in Journal of Neurodevelopmental Disorders, 3-4 (December 2011)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 3-4 (December 2011) . - p.293-306 Titre : Turner syndrome and sexual differentiation of the brain: implications for understanding male-biased neurodevelopmental disorders Type de document : texte imprimé Auteurs : Rebecca Christine KNICKMEYER, Auteur ; Marsha DAVENPORT, Auteur Article en page(s) : p.293-306 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Turner syndrome (TS) is one of the most common sex chromosome abnormalities. Affected individuals often show a unique pattern of cognitive strengths and weaknesses and are at increased risk for a number of other neurodevelopmental conditions, many of which are more common in typical males than typical females (e.g., autism and attention-deficit hyperactivity disorder). This phenotype may reflect gonadal steroid deficiency, haploinsufficiency of X chromosome genes, failure to express parentally imprinted genes, and the uncovering of X chromosome mutations. Understanding the contribution of these different mechanisms to outcome has the potential to improve clinical care for individuals with TS and to better our understanding of the differential vulnerability to and expression of neurodevelopmental disorders in males and females. In this paper, we review what is currently known about cognition and brain development in individuals with TS, discuss underlying mechanisms and their relevance to understanding male-biased neurodevelopmental conditions, and suggest directions for future research. En ligne : http://dx.doi.org/10.1007/s11689-011-9089-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=343 [article] Turner syndrome and sexual differentiation of the brain: implications for understanding male-biased neurodevelopmental disorders [texte imprimé] / Rebecca Christine KNICKMEYER, Auteur ; Marsha DAVENPORT, Auteur . - p.293-306. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 3-4 (December 2011) . - p.293-306 Index. décimale : PER Périodiques Résumé : Turner syndrome (TS) is one of the most common sex chromosome abnormalities. Affected individuals often show a unique pattern of cognitive strengths and weaknesses and are at increased risk for a number of other neurodevelopmental conditions, many of which are more common in typical males than typical females (e.g., autism and attention-deficit hyperactivity disorder). This phenotype may reflect gonadal steroid deficiency, haploinsufficiency of X chromosome genes, failure to express parentally imprinted genes, and the uncovering of X chromosome mutations. Understanding the contribution of these different mechanisms to outcome has the potential to improve clinical care for individuals with TS and to better our understanding of the differential vulnerability to and expression of neurodevelopmental disorders in males and females. In this paper, we review what is currently known about cognition and brain development in individuals with TS, discuss underlying mechanisms and their relevance to understanding male-biased neurodevelopmental conditions, and suggest directions for future research. En ligne : http://dx.doi.org/10.1007/s11689-011-9089-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=343

Turner syndrome: language profile of young girls at 12 and 24 months of age / Debra B. REINHARTSEN in Journal of Neurodevelopmental Disorders, 13 (2021)  

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