Documents disponibles écrits par cet auteur

Abnormal lateralization of functional connectivity between language and default mode regions in autism / Jared NIELSEN in Molecular Autism, (February 2014) 

Public ISBD [article]  in Molecular Autism > (February 2014) Titre : Abnormal lateralization of functional connectivity between language and default mode regions in autism Type de document : texte imprimé Auteurs : Jared NIELSEN, Auteur ; Brandon ZIELINSKI, Auteur ; P FLETCHER, Auteur ; Andrew ALEXANDER, Auteur ; Nicholas LANGE, Auteur ; Erin D. BIGLER, Auteur ; Janet E. LAINHART, Auteur ; Jeffrey ANDERSON, Auteur Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Lateralization of brain structure and function occurs in typical development, and abnormal lateralization is present in various neuropsychiatric disorders. Autism is characterized by a lack of left lateralization in structure and function of regions involved in language, such as Broca and Wernicke areas. Using functional connectivity magnetic resonance imaging from a large publicly available sample (n=964), we tested whether abnormal functional lateralization in autism exists preferentially in language regions or in a more diffuse pattern across networks of lateralized brain regions. The autism group exhibited significantly reduced left lateralization in a few connections involving language regions and regions from the default mode network, but results were not significant throughout left- and right-lateralized networks. There is a trend that suggests the lack of left lateralization in a connection involving Wernicke area and the posterior cingulate cortex associates with more severe autism. Abnormal language lateralization in autism may be due to abnormal language development rather than to a deficit in hemispheric specialization of the entire brain. En ligne : http://dx.doi.org/10.1186/2040-2392-5-8 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=2279 [article] Abnormal lateralization of functional connectivity between language and default mode regions in autism [texte imprimé] / Jared NIELSEN, Auteur ; Brandon ZIELINSKI, Auteur ; P FLETCHER, Auteur ; Andrew ALEXANDER, Auteur ; Nicholas LANGE, Auteur ; Erin D. BIGLER, Auteur ; Janet E. LAINHART, Auteur ; Jeffrey ANDERSON, Auteur. Langues : Anglais (eng) in Molecular Autism > (February 2014) Index. décimale : PER Périodiques Résumé : Lateralization of brain structure and function occurs in typical development, and abnormal lateralization is present in various neuropsychiatric disorders. Autism is characterized by a lack of left lateralization in structure and function of regions involved in language, such as Broca and Wernicke areas. Using functional connectivity magnetic resonance imaging from a large publicly available sample (n=964), we tested whether abnormal functional lateralization in autism exists preferentially in language regions or in a more diffuse pattern across networks of lateralized brain regions. The autism group exhibited significantly reduced left lateralization in a few connections involving language regions and regions from the default mode network, but results were not significant throughout left- and right-lateralized networks. There is a trend that suggests the lack of left lateralization in a connection involving Wernicke area and the posterior cingulate cortex associates with more severe autism. Abnormal language lateralization in autism may be due to abnormal language development rather than to a deficit in hemispheric specialization of the entire brain. En ligne : http://dx.doi.org/10.1186/2040-2392-5-8 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=2279

Functional Connectivity MRI in Autism / Jeffrey ANDERSON

Public ISBD in Imaging the Brain in Autism / Manuel F. CASANOVA Titre : Functional Connectivity MRI in Autism Type de document : texte imprimé Auteurs : Jeffrey ANDERSON, Auteur Année de publication : 2013 Importance : p.325-347 Langues : Anglais (eng) Catégories : AUTISME CERVEAU EXPRESSION FACIALE IMAGERIE PAR RESONANCE MAGNETIQUE (IRM) LANGAGE MEMOIRE MOTRICITE VISION Index. décimale : SCI-D SCI-D Neurosciences Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=2030 in Imaging the Brain in Autism / Manuel F. CASANOVA Functional Connectivity MRI in Autism [texte imprimé] / Jeffrey ANDERSON, Auteur . - 2013 . - p.325-347. Langues : Anglais (eng) Catégories : AUTISME CERVEAU EXPRESSION FACIALE IMAGERIE PAR RESONANCE MAGNETIQUE (IRM) LANGAGE MEMOIRE MOTRICITE VISION Index. décimale : SCI-D SCI-D Neurosciences Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=2030

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Functional MRI in Autism / Jeffrey ANDERSON

Public ISBD in Imaging the Brain in Autism / Manuel F. CASANOVA Titre : Functional MRI in Autism Type de document : texte imprimé Auteurs : Jeffrey ANDERSON, Auteur ; Michael A. FERGUSON, Auteur ; Jared A. NIELSEN, Auteur Année de publication : 2013 Importance : p.289-323 Langues : Anglais (eng) Catégories : AUTISME CERVEAU EMOTION EMPATHIE EVALUATION DE L'AUDITION EXPRESSION FACIALE FONCTION EXECUTIVE IMAGERIE PAR RESONANCE MAGNETIQUE (IRM) LANGAGE MEMOIRE NEURONE MIROIR PERCEPTION THEORIE DE L'ESPRIT VISION Index. décimale : SCI-D SCI-D Neurosciences Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=2029 in Imaging the Brain in Autism / Manuel F. CASANOVA Functional MRI in Autism [texte imprimé] / Jeffrey ANDERSON, Auteur ; Michael A. FERGUSON, Auteur ; Jared A. NIELSEN, Auteur . - 2013 . - p.289-323. Langues : Anglais (eng) Catégories : AUTISME CERVEAU EMOTION EMPATHIE EVALUATION DE L'AUDITION EXPRESSION FACIALE FONCTION EXECUTIVE IMAGERIE PAR RESONANCE MAGNETIQUE (IRM) LANGAGE MEMOIRE NEURONE MIROIR PERCEPTION THEORIE DE L'ESPRIT VISION Index. décimale : SCI-D SCI-D Neurosciences Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=2029

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Intact prototype formation but impaired generalization in autism / A.H. FROEHLICH in Research in Autism Spectrum Disorders, 6-2 (April-June 2012) 

Public ISBD [article]  in Research in Autism Spectrum Disorders > 6-2 (April-June 2012) . - p.921-930 Titre : Intact prototype formation but impaired generalization in autism Type de document : texte imprimé Auteurs : A.H. FROEHLICH, Auteur ; Jeffrey ANDERSON, Auteur ; Erin D. BIGLER, Auteur ; J. S. MILLER, Auteur ; N. T. LANGE, Auteur ; Molly B. DUBRAY, Auteur ; Jason R. COOPERRIDER, Auteur ; Annahir N. CARIELLO, Auteur ; J. A. NIELSEN, Auteur ; Janet E. LAINHART, Auteur Année de publication : 2012 Article en page(s) : p.921-930 Langues : Anglais (eng) Mots-clés : Prototype  Autism  Categorization  Recognition  Generalization  fMRI Index. décimale : PER Périodiques Résumé : Cognitive processing in autism has been characterized by a difficulty with the abstraction of information across multiple stimuli or situations and subsequent generalization to new stimuli or situations. This apparent difficulty leads to the suggestion that prototype formation, a process of creating a mental summary representation of multiple experienced stimuli that go together in a category, may be impaired in autism. Adults with high functioning autism and a typically developing comparison group matched on age and IQ completed a random dot pattern categorization task. Participants with autism demonstrated intact prototype formation in all four ways it was operationally defined, and this performance was not significantly different from that of control participants. However, participants with autism categorized dot patterns that were more highly distorted from the category prototypes less accurately than did control participants. These findings suggest, at least within the constraints of the random dot pattern task, that although prototype formation may not be impaired in autism, difficulties may exist with the generalization of what has been learned about a category to novel stimuli, particularly as they become less similar to the category's prototype. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.12.006 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=1508 [article] Intact prototype formation but impaired generalization in autism [texte imprimé] / A.H. FROEHLICH, Auteur ; Jeffrey ANDERSON, Auteur ; Erin D. BIGLER, Auteur ; J. S. MILLER, Auteur ; N. T. LANGE, Auteur ; Molly B. DUBRAY, Auteur ; Jason R. COOPERRIDER, Auteur ; Annahir N. CARIELLO, Auteur ; J. A. NIELSEN, Auteur ; Janet E. LAINHART, Auteur . - 2012 . - p.921-930. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 6-2 (April-June 2012) . - p.921-930 Mots-clés : Prototype  Autism  Categorization  Recognition  Generalization  fMRI Index. décimale : PER Périodiques Résumé : Cognitive processing in autism has been characterized by a difficulty with the abstraction of information across multiple stimuli or situations and subsequent generalization to new stimuli or situations. This apparent difficulty leads to the suggestion that prototype formation, a process of creating a mental summary representation of multiple experienced stimuli that go together in a category, may be impaired in autism. Adults with high functioning autism and a typically developing comparison group matched on age and IQ completed a random dot pattern categorization task. Participants with autism demonstrated intact prototype formation in all four ways it was operationally defined, and this performance was not significantly different from that of control participants. However, participants with autism categorized dot patterns that were more highly distorted from the category prototypes less accurately than did control participants. These findings suggest, at least within the constraints of the random dot pattern task, that although prototype formation may not be impaired in autism, difficulties may exist with the generalization of what has been learned about a category to novel stimuli, particularly as they become less similar to the category's prototype. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.12.006 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=1508

Longitudinal Heschl's Gyrus Growth During Childhood and Adolescence in Typical Development and Autism / Molly B. D. PRIGGE in Autism Research, 6-2 (April 2013) 

Public ISBD [article]  in Autism Research > 6-2 (April 2013) . - p.78-90 Titre : Longitudinal Heschl's Gyrus Growth During Childhood and Adolescence in Typical Development and Autism Type de document : texte imprimé Auteurs : Molly B. D. PRIGGE, Auteur ; Erin D. BIGLER, Auteur ; P. Thomas FLETCHER, Auteur ; Brandon A. ZIELINSKI, Auteur ; Caitlin RAVICHANDRAN, Auteur ; Jeffrey ANDERSON, Auteur ; Alyson L. FROEHLICH, Auteur ; Tracy J. ABILDSKOV, Auteur ; Evangelia PAPADOPOLOUS, Auteur ; Kathryn MAASBERG, Auteur ; Jared A. NIELSEN, Auteur ; Andrew ALEXANDER, Auteur ; Nicholas LANGE, Auteur ; Janet E. LAINHART, Auteur Année de publication : 2013 Article en page(s) : p.78-90 Langues : Anglais (eng) Mots-clés : autism  Heschl's gyrus  longitudinal development  MRI Index. décimale : PER Périodiques Résumé : Heightened auditory sensitivity and atypical auditory processing are common in autism. Functional studies suggest abnormal neural response and hemispheric activation to auditory stimuli, yet the neurodevelopment underlying atypical auditory function in autism is unknown. In this study, we model longitudinal volumetric growth of Heschl's gyrus gray matter and white matter during childhood and adolescence in 40 individuals with autism and 17 typically developing participants. Up to three time points of magnetic resonance imaging data, collected on average every 2.5 years, were examined from individuals 3–12 years of age at the time of their first scan. Consistent with previous cross-sectional studies, no group differences were found in Heschl's gyrus gray matter volume or asymmetry. However, reduced longitudinal gray matter volumetric growth was found in the right Heschl's gyrus in autism. Reduced longitudinal white matter growth in the left hemisphere was found in the right-handed autism participants. Atypical Heschl's gyrus white matter volumetric growth was found bilaterally in the autism individuals with a history of delayed onset of spoken language. Heightened auditory sensitivity, obtained from the Sensory Profile, was associated with reduced volumetric gray matter growth in the right hemisphere. Our longitudinal analyses revealed dynamic gray and white matter changes in Heschl's gyrus throughout childhood and adolescence in both typical development and autism. En ligne : http://dx.doi.org/10.1002/aur.1265 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=1992 [article] Longitudinal Heschl's Gyrus Growth During Childhood and Adolescence in Typical Development and Autism [texte imprimé] / Molly B. D. PRIGGE, Auteur ; Erin D. BIGLER, Auteur ; P. Thomas FLETCHER, Auteur ; Brandon A. ZIELINSKI, Auteur ; Caitlin RAVICHANDRAN, Auteur ; Jeffrey ANDERSON, Auteur ; Alyson L. FROEHLICH, Auteur ; Tracy J. ABILDSKOV, Auteur ; Evangelia PAPADOPOLOUS, Auteur ; Kathryn MAASBERG, Auteur ; Jared A. NIELSEN, Auteur ; Andrew ALEXANDER, Auteur ; Nicholas LANGE, Auteur ; Janet E. LAINHART, Auteur . - 2013 . - p.78-90. Langues : Anglais (eng) in Autism Research > 6-2 (April 2013) . - p.78-90 Mots-clés : autism  Heschl's gyrus  longitudinal development  MRI Index. décimale : PER Périodiques Résumé : Heightened auditory sensitivity and atypical auditory processing are common in autism. Functional studies suggest abnormal neural response and hemispheric activation to auditory stimuli, yet the neurodevelopment underlying atypical auditory function in autism is unknown. In this study, we model longitudinal volumetric growth of Heschl's gyrus gray matter and white matter during childhood and adolescence in 40 individuals with autism and 17 typically developing participants. Up to three time points of magnetic resonance imaging data, collected on average every 2.5 years, were examined from individuals 3–12 years of age at the time of their first scan. Consistent with previous cross-sectional studies, no group differences were found in Heschl's gyrus gray matter volume or asymmetry. However, reduced longitudinal gray matter volumetric growth was found in the right Heschl's gyrus in autism. Reduced longitudinal white matter growth in the left hemisphere was found in the right-handed autism participants. Atypical Heschl's gyrus white matter volumetric growth was found bilaterally in the autism individuals with a history of delayed onset of spoken language. Heightened auditory sensitivity, obtained from the Sensory Profile, was associated with reduced volumetric gray matter growth in the right hemisphere. Our longitudinal analyses revealed dynamic gray and white matter changes in Heschl's gyrus throughout childhood and adolescence in both typical development and autism. En ligne : http://dx.doi.org/10.1002/aur.1265 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=1992