Traduction: G.M.
J Autism Dev Disord. 2017 May 11. doi: 10.1007/s10803-017-3141-1.
Neural Correlates of Explicit Versus Implicit Facial Emotion Processing in ASD
Luckhardt C1, Kröger A2, Cholemkery H2, Bender S2,3, Freitag CM2.
Author information
- 1
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Autism Research and Intervention Center of Excellence, University Hospital Frankfurt, Goethe University, Deutschordenstraße 50, 60528, Frankfurt am Main, Germany. Christina.Luckhardt@kgu.de.
- 2
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Autism Research and Intervention Center of Excellence, University Hospital Frankfurt, Goethe University, Deutschordenstraße 50, 60528, Frankfurt am Main, Germany.
- 3
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Medical Faculty, University of Cologne, Robert-Koch-Straße 10, 50931, Cologne, Germany.
Abstract
Les
mécanismes nerveux sous-jacents de la reconnaissance implicite et
explicite de l'émotion faciale (FER) ont été étudiés chez les enfants et
les adolescents avec un diagnostic de trouble du spectre de l'autisme (TSA) par
rapport aux témoins au développement typique (TDC). L'EEG a été obtenu à partir de N = 21 TSA et N = 16 TDC. La
performance de la tâche, les potentiels évoqués visuels (P100, N170) et cognitifs (potentiel positif ), ainsi que la cohérence
ont été comparés entre les groupes. Le
groupe TDC a montré une augmentation dépendant de la tâche et une
latéralisation plus forte de l'amplitude P100 au cours de la tâche
explicite et de la modulation dépendante des tâches de la cohérence
intra-hémisphérique dans la bande bêta. En revanche, le groupe TSA n'a montré aucune modulation dépendant de la tâche. Les résultats indiquent des perturbations dans le traitement visuel
précoce et les processus d'attention top-down comme facteurs contribuant
aux déficits FER dans le TSA .
The underlying neural mechanisms of implicit and explicit facial emotion recognition (FER) were studied in children and adolescents with autism spectrum disorder (ASD) compared to matched typically developing controls (TDC). EEG was obtained from N = 21 ASD and N = 16 TDC. Task performance, visual (P100, N170) and cognitive (late positive potential) event-related-potentials, as well as coherence were compared across groups. TDC showed a task-dependent increase and a stronger lateralization of P100 amplitude during the explicit task and task-dependent modulation of intra-hemispheric coherence in the beta band. In contrast, the ASD group showed no task dependent modulation. Results indicate disruptions in early visual processing and top-down attentional processes as contributing factors to FER deficits in ASD.
The underlying neural mechanisms of implicit and explicit facial emotion recognition (FER) were studied in children and adolescents with autism spectrum disorder (ASD) compared to matched typically developing controls (TDC). EEG was obtained from N = 21 ASD and N = 16 TDC. Task performance, visual (P100, N170) and cognitive (late positive potential) event-related-potentials, as well as coherence were compared across groups. TDC showed a task-dependent increase and a stronger lateralization of P100 amplitude during the explicit task and task-dependent modulation of intra-hemispheric coherence in the beta band. In contrast, the ASD group showed no task dependent modulation. Results indicate disruptions in early visual processing and top-down attentional processes as contributing factors to FER deficits in ASD.
- PMID:28497246
- DOI:10.1007/s10803-017-3141-1
