[article]
| Titre : |
On the Neuroimaging of Autism in the Context of Human Brain Diversity |
| Type de document : |
Texte imprimé et/ou numérique |
| Auteurs : |
Josselin HOUENOU, Auteur ; Pauline CHASTE, Auteur |
| Article en page(s) : |
p.68-79 |
| Langues : |
Anglais (eng) |
| Index. décimale : |
AUT-B AUT-B - L'Autisme - Ouvrages généraux et scientifiques |
| Résumé : |
Numerous neuroimaging studies of autism spectrum disorders (ASD) have been conducted. Although many of the results of these studies do not overlap, some evidence has accumulated in support of the existence of some atypical brain morphology and function patterns. Indeed, studies have consistently reported structural abnormalities in the prefronto-striatal networks. Functional neuroimaging studies during social tasks have revealed altered patterns of activation in the fusiform gyrus and the superior temporal sulcus, two regions implicated in face recognition and social processing. Moreover, hypoactivation of the bilateral superior temporal gyri during language processing has also consistently been reported. Brain growth patterns are less clear. However, several studies have shown an atypical pattern, with overgrowth from birth to early infancy followed by a slower rate of growth compared to typically developing children and adults. Lastly, recent neuroimaging techniques such as diffusion tensor imaging and functional MRI connectivity measures have revealed long-range underconnectivity in ASD. Autism has thus been recently conceptualized as a brain connectivity disorder. This approach allows a better understanding of the failure of social and communication abilities in ASD. |
| Permalink : |
https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=271 |
in Key Issues in Mental Health > 180 (2015) . - p.68-79
[article] On the Neuroimaging of Autism in the Context of Human Brain Diversity [Texte imprimé et/ou numérique] / Josselin HOUENOU, Auteur ; Pauline CHASTE, Auteur . - p.68-79. Langues : Anglais ( eng) in Key Issues in Mental Health > 180 (2015) . - p.68-79
| Index. décimale : |
AUT-B AUT-B - L'Autisme - Ouvrages généraux et scientifiques |
| Résumé : |
Numerous neuroimaging studies of autism spectrum disorders (ASD) have been conducted. Although many of the results of these studies do not overlap, some evidence has accumulated in support of the existence of some atypical brain morphology and function patterns. Indeed, studies have consistently reported structural abnormalities in the prefronto-striatal networks. Functional neuroimaging studies during social tasks have revealed altered patterns of activation in the fusiform gyrus and the superior temporal sulcus, two regions implicated in face recognition and social processing. Moreover, hypoactivation of the bilateral superior temporal gyri during language processing has also consistently been reported. Brain growth patterns are less clear. However, several studies have shown an atypical pattern, with overgrowth from birth to early infancy followed by a slower rate of growth compared to typically developing children and adults. Lastly, recent neuroimaging techniques such as diffusion tensor imaging and functional MRI connectivity measures have revealed long-range underconnectivity in ASD. Autism has thus been recently conceptualized as a brain connectivity disorder. This approach allows a better understanding of the failure of social and communication abilities in ASD. |
| Permalink : |
https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=271 |
|
On the Neuroimaging of Autism in the Context of Human Brain Diversity in Key Issues in Mental Health, 180 (2015)