Neural correlates of face familiarity in institutionalised children and links to attachment disordered behaviour / Paula S. OLIVEIRA in Journal of Child Psychology and Psychiatry, 64-5 (May 2023)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 64-5 (May 2023) . - p.736-746 Titre : Neural correlates of face familiarity in institutionalised children and links to attachment disordered behaviour Type de document : Texte imprimé et/ou numérique Auteurs : Paula S. OLIVEIRA, Auteur ; Pasco FEARON, Auteur ; Jay BELSKY, Auteur ; Ana R. MESQUITA, Auteur ; Adriana SAMPAIO, Auteur ; Diego PINAL, Auteur ; Isabel SOARES, Auteur Article en page(s) : p.736-746 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Background One of the most well-documented sequelae of early maltreatment and institutionalisation is attachment problems, including behaviours under the labels of reactive attachment disorder (RAD) and disinhibited social engagement disorder (DSED). Despite growing evidence of the neurobiological effects of institutionalisation, the neural correlates of these behavioural patterns are largely unknown. Methods The current study examined effects of both institutionalisation in general and attachment disordered behaviour, in particular, on brain-based markers of face processing, in 100 Portuguese children (70 currently institutionalised, 30 continuously raised by their families). Children's neural processing of caregiver's and stranger's faces was assessed with Event-Related Potentials (ERPs). Results Compared to children from the community, institutionalised children showed smaller amplitudes in the N170, to both stranger and caregiver faces. Amongst the institutionalised group, living in a setting with a higher children-to-caregivers' ratio was associated with smaller P400 amplitudes. The display of DSED symptoms was associated with a smaller P1 to both faces, as well as a reduced differentiation between faces in P400 amplitudes and smaller P400 to the stranger's face. In contrast, RAD symptoms were not associated with any ERP measures. Conclusions Results replicate previously reported hypoactivation in institutionalised children, in a less-globally deprived setting than past work, indicating that such a pattern is associated with lack of individualised care and increased symptoms of DSED. En ligne : https://doi.org/10.1111/jcpp.13728 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=501 [article] Neural correlates of face familiarity in institutionalised children and links to attachment disordered behaviour [Texte imprimé et/ou numérique] / Paula S. OLIVEIRA, Auteur ; Pasco FEARON, Auteur ; Jay BELSKY, Auteur ; Ana R. MESQUITA, Auteur ; Adriana SAMPAIO, Auteur ; Diego PINAL, Auteur ; Isabel SOARES, Auteur . - p.736-746. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 64-5 (May 2023) . - p.736-746 Index. décimale : PER Périodiques Résumé : Background One of the most well-documented sequelae of early maltreatment and institutionalisation is attachment problems, including behaviours under the labels of reactive attachment disorder (RAD) and disinhibited social engagement disorder (DSED). Despite growing evidence of the neurobiological effects of institutionalisation, the neural correlates of these behavioural patterns are largely unknown. Methods The current study examined effects of both institutionalisation in general and attachment disordered behaviour, in particular, on brain-based markers of face processing, in 100 Portuguese children (70 currently institutionalised, 30 continuously raised by their families). Children's neural processing of caregiver's and stranger's faces was assessed with Event-Related Potentials (ERPs). Results Compared to children from the community, institutionalised children showed smaller amplitudes in the N170, to both stranger and caregiver faces. Amongst the institutionalised group, living in a setting with a higher children-to-caregivers' ratio was associated with smaller P400 amplitudes. The display of DSED symptoms was associated with a smaller P1 to both faces, as well as a reduced differentiation between faces in P400 amplitudes and smaller P400 to the stranger's face. In contrast, RAD symptoms were not associated with any ERP measures. Conclusions Results replicate previously reported hypoactivation in institutionalised children, in a less-globally deprived setting than past work, indicating that such a pattern is associated with lack of individualised care and increased symptoms of DSED. En ligne : https://doi.org/10.1111/jcpp.13728 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=501

Touch Processing and Social Behavior in ASD / Helga O. MIGUEL in Journal of Autism and Developmental Disorders, 47-8 (August 2017)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 47-8 (August 2017) . - p.2425-2433 Titre : Touch Processing and Social Behavior in ASD Type de document : Texte imprimé et/ou numérique Auteurs : Helga O. MIGUEL, Auteur ; Adriana SAMPAIO, Auteur ; Rocío MARTÍNEZ-REGUEIRO, Auteur ; Lorena GÓMEZ-GUERRERO, Auteur ; Cristina Gutiérrez LÓPEZ-DÓRIGA, Auteur ; Sonia GÓMEZ, Auteur ; Ángel CARRACEDO, Auteur ; Montse FERNÁNDEZ-PRIETO, Auteur Article en page(s) : p.2425-2433 Langues : Anglais (eng) Mots-clés : ASD  Sensory processing  Touch processing  Social behavior Index. décimale : PER Périodiques Résumé : Abnormal patterns of touch processing have been linked to core symptoms in ASD. This study examined the relation between tactile processing patterns and social problems in 44 children and adolescents with ASD, aged 6–14 (M?=?8.39?±?2.35). Multiple linear regression indicated significant associations between touch processing and social problems. No such relationships were found for social problems and autism severity. Within touch processing, patterns of hyper-responsiveness and hypo-responsiveness best predicted social problems, whereas sensory-seeking did not. These results support that atypical touch processing in individuals with ASD might be contributing to the social problems they present. Moreover, it the need to explore more in depth the contribution of sensory features to the ASD phenotype. En ligne : https://doi.org/10.1007/s10803-017-3163-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=314 [article] Touch Processing and Social Behavior in ASD [Texte imprimé et/ou numérique] / Helga O. MIGUEL, Auteur ; Adriana SAMPAIO, Auteur ; Rocío MARTÍNEZ-REGUEIRO, Auteur ; Lorena GÓMEZ-GUERRERO, Auteur ; Cristina Gutiérrez LÓPEZ-DÓRIGA, Auteur ; Sonia GÓMEZ, Auteur ; Ángel CARRACEDO, Auteur ; Montse FERNÁNDEZ-PRIETO, Auteur . - p.2425-2433. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 47-8 (August 2017) . - p.2425-2433 Mots-clés : ASD  Sensory processing  Touch processing  Social behavior Index. décimale : PER Périodiques Résumé : Abnormal patterns of touch processing have been linked to core symptoms in ASD. This study examined the relation between tactile processing patterns and social problems in 44 children and adolescents with ASD, aged 6–14 (M?=?8.39?±?2.35). Multiple linear regression indicated significant associations between touch processing and social problems. No such relationships were found for social problems and autism severity. Within touch processing, patterns of hyper-responsiveness and hypo-responsiveness best predicted social problems, whereas sensory-seeking did not. These results support that atypical touch processing in individuals with ASD might be contributing to the social problems they present. Moreover, it the need to explore more in depth the contribution of sensory features to the ASD phenotype. En ligne : https://doi.org/10.1007/s10803-017-3163-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=314

Williams Syndrome and Memory: A Neuroanatomic and Cognitive Approach / Adriana SAMPAIO in Journal of Autism and Developmental Disorders, 40-7 (July 2010)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 40-7 (July 2010) . - p.870-877 Titre : Williams Syndrome and Memory: A Neuroanatomic and Cognitive Approach Type de document : Texte imprimé et/ou numérique Auteurs : Adriana SAMPAIO, Auteur ; Nuno SOUSA, Auteur ; Montse FERNANDEZ, Auteur ; Cristiana VASCONCELOS, Auteur ; Martha E. SHENTON, Auteur ; Oscar F. GONCALVES, Auteur Année de publication : 2010 Article en page(s) : p.870-877 Langues : Anglais (eng) Mots-clés : Williams-Syndrome Neurodevelopment Hippocampal-formation Memory-performance Index. décimale : PER Périodiques Résumé : Williams Syndrome (WS) is described as displaying a dissociation within memory systems. As the integrity of hippocampal formation (HF) is determinant for memory performance, we examined HF volumes and its association with memory measures in a group of WS and in a typically development group. A significantly reduced intracranial content was found in WS, despite no differences were observed for HF absolute volumes between groups. When volumes were normalized, left HF was increased in WS. Moreover, a lack of the normal right > left HF asymmetry was observed in WS. No positive correlations were found between volumetric and neurocognitive data in WS. In sum, a relative enlargement of HF and atypical patterns of asymmetry suggest abnormal brain development in WS. En ligne : http://dx.doi.org/10.1007/s10803-010-0940-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=107 [article] Williams Syndrome and Memory: A Neuroanatomic and Cognitive Approach [Texte imprimé et/ou numérique] / Adriana SAMPAIO, Auteur ; Nuno SOUSA, Auteur ; Montse FERNANDEZ, Auteur ; Cristiana VASCONCELOS, Auteur ; Martha E. SHENTON, Auteur ; Oscar F. GONCALVES, Auteur . - 2010 . - p.870-877. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 40-7 (July 2010) . - p.870-877 Mots-clés : Williams-Syndrome Neurodevelopment Hippocampal-formation Memory-performance Index. décimale : PER Périodiques Résumé : Williams Syndrome (WS) is described as displaying a dissociation within memory systems. As the integrity of hippocampal formation (HF) is determinant for memory performance, we examined HF volumes and its association with memory measures in a group of WS and in a typically development group. A significantly reduced intracranial content was found in WS, despite no differences were observed for HF absolute volumes between groups. When volumes were normalized, left HF was increased in WS. Moreover, a lack of the normal right > left HF asymmetry was observed in WS. No positive correlations were found between volumetric and neurocognitive data in WS. In sum, a relative enlargement of HF and atypical patterns of asymmetry suggest abnormal brain development in WS. En ligne : http://dx.doi.org/10.1007/s10803-010-0940-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=107

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