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Détail de l'auteur
Auteur Eileen DALY |
Documents disponibles écrits par cet auteur (20)
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The effect of age on vertex-based measures of the grey-white matter tissue contrast in autism spectrum disorder / C. MANN in Molecular Autism, 9 (2018)
The Neuropsychology of Male Adults With High-Functioning Autism or Asperger Syndrome / C. Ellie WILSON in Autism Research, 7-5 (October 2014)
[article]
Titre : The Neuropsychology of Male Adults With High-Functioning Autism or Asperger Syndrome Type de document : Texte imprimé et/ou numérique Auteurs : C. Ellie WILSON, Auteur ; Francesca HAPPE, Auteur ; Sally J. WHEELWRIGHT, Auteur ; Christine ECKER, Auteur ; Michael V. LOMBARDO, Auteur ; Patrick JOHNSTON, Auteur ; Eileen DALY, Auteur ; Clodagh M. MURPHY, Auteur ; Debbie SPAIN, Auteur ; Meng-Chuan LAI, Auteur ; Bhismadev CHAKRABARTI, Auteur ; Disa A. SAUTER, Auteur ; CONSORTIUM MRC AIMS,, Auteur ; Simon BARON-COHEN, Auteur ; Declan G. M. MURPHY, Auteur Article en page(s) : p.568-581 Langues : Anglais (eng) Mots-clés : autism spectrum disorder cognitive profiles autistic symptomatology comorbid psychopathology support vector machine classification autistic subtypes Index. décimale : PER Périodiques Résumé : Autism Spectrum Disorder (ASD) is diagnosed on the basis of behavioral symptoms, but cognitive abilities may also be useful in characterizing individuals with ASD. One hundred seventy-eight high-functioning male adults, half with ASD and half without, completed tasks assessing IQ, a broad range of cognitive skills, and autistic and comorbid symptomatology. The aims of the study were, first, to determine whether significant differences existed between cases and controls on cognitive tasks, and whether cognitive profiles, derived using a multivariate classification method with data from multiple cognitive tasks, could distinguish between the two groups. Second, to establish whether cognitive skill level was correlated with degree of autistic symptom severity, and third, whether cognitive skill level was correlated with degree of comorbid psychopathology. Fourth, cognitive characteristics of individuals with Asperger Syndrome (AS) and high-functioning autism (HFA) were compared. After controlling for IQ, ASD and control groups scored significantly differently on tasks of social cognition, motor performance, and executive function (P's??0.05). To investigate cognitive profiles, 12 variables were entered into a support vector machine (SVM), which achieved good classification accuracy (81%) at a level significantly better than chance (P??0.0001). After correcting for multiple correlations, there were no significant associations between cognitive performance and severity of either autistic or comorbid symptomatology. There were no significant differences between AS and HFA groups on the cognitive tasks. Cognitive classification models could be a useful aid to the diagnostic process when used in conjunction with other data sources—including clinical history. Autism Res 2014, 7: 568–581. © 2014 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1394 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=241
in Autism Research > 7-5 (October 2014) . - p.568-581[article] The Neuropsychology of Male Adults With High-Functioning Autism or Asperger Syndrome [Texte imprimé et/ou numérique] / C. Ellie WILSON, Auteur ; Francesca HAPPE, Auteur ; Sally J. WHEELWRIGHT, Auteur ; Christine ECKER, Auteur ; Michael V. LOMBARDO, Auteur ; Patrick JOHNSTON, Auteur ; Eileen DALY, Auteur ; Clodagh M. MURPHY, Auteur ; Debbie SPAIN, Auteur ; Meng-Chuan LAI, Auteur ; Bhismadev CHAKRABARTI, Auteur ; Disa A. SAUTER, Auteur ; CONSORTIUM MRC AIMS,, Auteur ; Simon BARON-COHEN, Auteur ; Declan G. M. MURPHY, Auteur . - p.568-581.
Langues : Anglais (eng)
in Autism Research > 7-5 (October 2014) . - p.568-581
Mots-clés : autism spectrum disorder cognitive profiles autistic symptomatology comorbid psychopathology support vector machine classification autistic subtypes Index. décimale : PER Périodiques Résumé : Autism Spectrum Disorder (ASD) is diagnosed on the basis of behavioral symptoms, but cognitive abilities may also be useful in characterizing individuals with ASD. One hundred seventy-eight high-functioning male adults, half with ASD and half without, completed tasks assessing IQ, a broad range of cognitive skills, and autistic and comorbid symptomatology. The aims of the study were, first, to determine whether significant differences existed between cases and controls on cognitive tasks, and whether cognitive profiles, derived using a multivariate classification method with data from multiple cognitive tasks, could distinguish between the two groups. Second, to establish whether cognitive skill level was correlated with degree of autistic symptom severity, and third, whether cognitive skill level was correlated with degree of comorbid psychopathology. Fourth, cognitive characteristics of individuals with Asperger Syndrome (AS) and high-functioning autism (HFA) were compared. After controlling for IQ, ASD and control groups scored significantly differently on tasks of social cognition, motor performance, and executive function (P's??0.05). To investigate cognitive profiles, 12 variables were entered into a support vector machine (SVM), which achieved good classification accuracy (81%) at a level significantly better than chance (P??0.0001). After correcting for multiple correlations, there were no significant associations between cognitive performance and severity of either autistic or comorbid symptomatology. There were no significant differences between AS and HFA groups on the cognitive tasks. Cognitive classification models could be a useful aid to the diagnostic process when used in conjunction with other data sources—including clinical history. Autism Res 2014, 7: 568–581. © 2014 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1394 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=241 Visuospatial working memory in children and adolescents with 22q11.2 deletion syndrome; an fMRI study / R. AZUMA in Journal of Neurodevelopmental Disorders, 1-1 (March 2009)
[article]
Titre : Visuospatial working memory in children and adolescents with 22q11.2 deletion syndrome; an fMRI study Type de document : Texte imprimé et/ou numérique Auteurs : R. AZUMA, Auteur ; Eileen DALY, Auteur ; Linda E. CAMPBELL, Auteur ; A. F. STEVENS, Auteur ; Quinton DEELEY, Auteur ; V. GIAMPIETRO, Auteur ; Michael BRAMMER, Auteur ; B. GLASER, Auteur ; F. Z. AMBERY, Auteur ; R. G. MORRIS, Auteur ; S. C. WILLIAMS, Auteur ; M. J. OWEN, Auteur ; D. G. MURPHY, Auteur ; K. C. MURPHY, Auteur Article en page(s) : p.46-60 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : 22q11.2 deletion syndrome (22q11DS) is a genetic disorder associated with a microdeletion of chromosome 22q11. In addition to high rates of neuropsychiatric disorders such as schizophrenia and attention deficit hyperactivity disorder, children with 22q11DS have a specific neuropsychological profile with particular deficits in visuospatial and working memory. However, the neurobiological substrate underlying these deficits is poorly understood. We investigated brain function during a visuospatial working memory (SWM) task in eight children with 22q11DS and 13 healthy controls, using fMRI. Both groups showed task-related activation in dorsolateral prefrontal cortex (DLPFC) and bilateral parietal association cortices. Controls activated parietal and occipital regions significantly more than those with 22q11DS but there was no significant between-group difference in DLPFC. In addition, while controls had a significant age-related increase in the activation of posterior brain regions and an age-related decrease in anterior regions, the 22q11DS children showed the opposite pattern. Genetically determined differences in the development of specific brain systems may underpin the cognitive deficits in 22q11DS, and may contribute to the later development of neuropsychiatric disorders. En ligne : http://dx.doi.org/10.1007/s11689-009-9008-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=341
in Journal of Neurodevelopmental Disorders > 1-1 (March 2009) . - p.46-60[article] Visuospatial working memory in children and adolescents with 22q11.2 deletion syndrome; an fMRI study [Texte imprimé et/ou numérique] / R. AZUMA, Auteur ; Eileen DALY, Auteur ; Linda E. CAMPBELL, Auteur ; A. F. STEVENS, Auteur ; Quinton DEELEY, Auteur ; V. GIAMPIETRO, Auteur ; Michael BRAMMER, Auteur ; B. GLASER, Auteur ; F. Z. AMBERY, Auteur ; R. G. MORRIS, Auteur ; S. C. WILLIAMS, Auteur ; M. J. OWEN, Auteur ; D. G. MURPHY, Auteur ; K. C. MURPHY, Auteur . - p.46-60.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 1-1 (March 2009) . - p.46-60
Index. décimale : PER Périodiques Résumé : 22q11.2 deletion syndrome (22q11DS) is a genetic disorder associated with a microdeletion of chromosome 22q11. In addition to high rates of neuropsychiatric disorders such as schizophrenia and attention deficit hyperactivity disorder, children with 22q11DS have a specific neuropsychological profile with particular deficits in visuospatial and working memory. However, the neurobiological substrate underlying these deficits is poorly understood. We investigated brain function during a visuospatial working memory (SWM) task in eight children with 22q11DS and 13 healthy controls, using fMRI. Both groups showed task-related activation in dorsolateral prefrontal cortex (DLPFC) and bilateral parietal association cortices. Controls activated parietal and occipital regions significantly more than those with 22q11DS but there was no significant between-group difference in DLPFC. In addition, while controls had a significant age-related increase in the activation of posterior brain regions and an age-related decrease in anterior regions, the 22q11DS children showed the opposite pattern. Genetically determined differences in the development of specific brain systems may underpin the cognitive deficits in 22q11DS, and may contribute to the later development of neuropsychiatric disorders. En ligne : http://dx.doi.org/10.1007/s11689-009-9008-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=341 White matter integrity in Asperger syndrome: a preliminary diffusion tensor magnetic resonance imaging study in adults / Oswald J.N. BLOEMEN in Autism Research, 3-5 (October 2010)
[article]
Titre : White matter integrity in Asperger syndrome: a preliminary diffusion tensor magnetic resonance imaging study in adults Type de document : Texte imprimé et/ou numérique Auteurs : Oswald J.N. BLOEMEN, Auteur ; Quinton DEELEY, Auteur ; Fred SUNDRAM, Auteur ; Eileen DALY, Auteur ; Gareth J. BARKER, Auteur ; Derek K. JONES, Auteur ; Therese A.M.J. VAN AMELSVOORT, Auteur ; Nicole SCHMITZ, Auteur ; Dene ROBERTSON, Auteur ; Kieran C. MURPHY, Auteur ; Declan G. MURPHY, Auteur Année de publication : 2010 Article en page(s) : p.203-213 Langues : Anglais (eng) Mots-clés : autism Asperger syndrome white matter DTI connectivity Index. décimale : PER Périodiques Résumé : Background: Autistic Spectrum Disorder (ASD), including Asperger syndrome and autism, is a highly genetic neurodevelopmental disorder. There is a consensus that ASD has a biological basis, and it has been proposed that it is a “connectivity” disorder. Diffusion Tensor Magnetic Resonance Imaging (DT-MRI) allows measurement of the microstructural integrity of white matter (a proxy measure of “connectivity”). However, nobody has investigated the microstructural integrity of whole brain white matter in people with Asperger syndrome. Methods: We measured the fractional anisotropy (FA), mean diffusivity (MD) and radial diffusivity (RD) of white matter, using DT-MRI, in 13 adults with Asperger syndrome and 13 controls. The groups did not differ significantly in overall intelligence and age. FA, MD and RD were assessed using whole brain voxel-based techniques. Results: Adults with Asperger syndrome had a significantly lower FA than controls in 13 clusters. These were largely bilateral and included white matter in the internal capsule, frontal, temporal, parietal and occipital lobes, cingulum and corpus callosum. Conclusions: Adults with Asperger syndrome have widespread significant differences from controls in white matter microstructural integrity. En ligne : http://dx.doi.org/10.1002/aur.146 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=115
in Autism Research > 3-5 (October 2010) . - p.203-213[article] White matter integrity in Asperger syndrome: a preliminary diffusion tensor magnetic resonance imaging study in adults [Texte imprimé et/ou numérique] / Oswald J.N. BLOEMEN, Auteur ; Quinton DEELEY, Auteur ; Fred SUNDRAM, Auteur ; Eileen DALY, Auteur ; Gareth J. BARKER, Auteur ; Derek K. JONES, Auteur ; Therese A.M.J. VAN AMELSVOORT, Auteur ; Nicole SCHMITZ, Auteur ; Dene ROBERTSON, Auteur ; Kieran C. MURPHY, Auteur ; Declan G. MURPHY, Auteur . - 2010 . - p.203-213.
Langues : Anglais (eng)
in Autism Research > 3-5 (October 2010) . - p.203-213
Mots-clés : autism Asperger syndrome white matter DTI connectivity Index. décimale : PER Périodiques Résumé : Background: Autistic Spectrum Disorder (ASD), including Asperger syndrome and autism, is a highly genetic neurodevelopmental disorder. There is a consensus that ASD has a biological basis, and it has been proposed that it is a “connectivity” disorder. Diffusion Tensor Magnetic Resonance Imaging (DT-MRI) allows measurement of the microstructural integrity of white matter (a proxy measure of “connectivity”). However, nobody has investigated the microstructural integrity of whole brain white matter in people with Asperger syndrome. Methods: We measured the fractional anisotropy (FA), mean diffusivity (MD) and radial diffusivity (RD) of white matter, using DT-MRI, in 13 adults with Asperger syndrome and 13 controls. The groups did not differ significantly in overall intelligence and age. FA, MD and RD were assessed using whole brain voxel-based techniques. Results: Adults with Asperger syndrome had a significantly lower FA than controls in 13 clusters. These were largely bilateral and included white matter in the internal capsule, frontal, temporal, parietal and occipital lobes, cingulum and corpus callosum. Conclusions: Adults with Asperger syndrome have widespread significant differences from controls in white matter microstructural integrity. En ligne : http://dx.doi.org/10.1002/aur.146 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=115 White matter microstructure in 22q11 deletion syndrome: a pilot diffusion tensor imaging and voxel-based morphometry study of children and adolescents / F. SUNDRAM in Journal of Neurodevelopmental Disorders, 2-2 (June 2010)
[article]
Titre : White matter microstructure in 22q11 deletion syndrome: a pilot diffusion tensor imaging and voxel-based morphometry study of children and adolescents Type de document : Texte imprimé et/ou numérique Auteurs : F. SUNDRAM, Auteur ; Linda E. CAMPBELL, Auteur ; R. AZUMA, Auteur ; Eileen DALY, Auteur ; Oswald J.N. BLOEMEN, Auteur ; Gareth J. BARKER, Auteur ; X. CHITNIS, Auteur ; D. K. JONES, Auteur ; T. VAN AMELSVOORT, Auteur ; K. C. MURPHY, Auteur ; D. G. MURPHY, Auteur Article en page(s) : p.77-92 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Young people with 22q11 Deletion Syndrome (22q11DS) are at substantial risk for developing psychosis and have significant differences in white matter (WM) volume. However, there are few in vivo studies of both WM microstructural integrity (as measured using Diffusion Tensor (DT)-MRI) and WM volume in the same individual. We used DT-MRI and structural MRI (sMRI) with voxel based morphometry (VBM) to compare, respectively, the fractional anisotropy (FA) and WM volume of 11 children and adolescents with 22q11DS and 12 controls. Also, within 22q11DS we related differences in WM to severity of schizotypy, and polymorphism of the catechol-O-methyltransferase (COMT) gene. People with 22q11DS had significantly lower FA in inter-hemispheric and brainstem and frontal, parietal and temporal lobe regions after covarying for IQ. Significant WM volumetric increases were found in the internal capsule, anterior brainstem and frontal and occipital lobes. There was a significant negative correlation between increased schizotypy scores and reduced WM FA in the right posterior limb of internal capsule and the right body and left splenium of corpus callosum. Finally, the Val allele of COMT was associated with a significant reduction in both FA and volume of WM in the frontal lobes, cingulum and corpus callosum. Young people with 22q11DS have significant differences in both WM microstructure and volume. Also, there is preliminary evidence that within 22q11DS, some regional differences in FA are associated with allelic variation in COMT and may perhaps also be associated with schizotypy. En ligne : http://dx.doi.org/10.1007/s11689-010-9043-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=342
in Journal of Neurodevelopmental Disorders > 2-2 (June 2010) . - p.77-92[article] White matter microstructure in 22q11 deletion syndrome: a pilot diffusion tensor imaging and voxel-based morphometry study of children and adolescents [Texte imprimé et/ou numérique] / F. SUNDRAM, Auteur ; Linda E. CAMPBELL, Auteur ; R. AZUMA, Auteur ; Eileen DALY, Auteur ; Oswald J.N. BLOEMEN, Auteur ; Gareth J. BARKER, Auteur ; X. CHITNIS, Auteur ; D. K. JONES, Auteur ; T. VAN AMELSVOORT, Auteur ; K. C. MURPHY, Auteur ; D. G. MURPHY, Auteur . - p.77-92.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 2-2 (June 2010) . - p.77-92
Index. décimale : PER Périodiques Résumé : Young people with 22q11 Deletion Syndrome (22q11DS) are at substantial risk for developing psychosis and have significant differences in white matter (WM) volume. However, there are few in vivo studies of both WM microstructural integrity (as measured using Diffusion Tensor (DT)-MRI) and WM volume in the same individual. We used DT-MRI and structural MRI (sMRI) with voxel based morphometry (VBM) to compare, respectively, the fractional anisotropy (FA) and WM volume of 11 children and adolescents with 22q11DS and 12 controls. Also, within 22q11DS we related differences in WM to severity of schizotypy, and polymorphism of the catechol-O-methyltransferase (COMT) gene. People with 22q11DS had significantly lower FA in inter-hemispheric and brainstem and frontal, parietal and temporal lobe regions after covarying for IQ. Significant WM volumetric increases were found in the internal capsule, anterior brainstem and frontal and occipital lobes. There was a significant negative correlation between increased schizotypy scores and reduced WM FA in the right posterior limb of internal capsule and the right body and left splenium of corpus callosum. Finally, the Val allele of COMT was associated with a significant reduction in both FA and volume of WM in the frontal lobes, cingulum and corpus callosum. Young people with 22q11DS have significant differences in both WM microstructure and volume. Also, there is preliminary evidence that within 22q11DS, some regional differences in FA are associated with allelic variation in COMT and may perhaps also be associated with schizotypy. En ligne : http://dx.doi.org/10.1007/s11689-010-9043-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=342