[article] 
inJournal of Child Psychology and Psychiatry > 50-7 (July 2009) . - p.862-870

Titre :	Orienting of visual attention among persons with autism spectrum disorders: reading versus responding to symbolic cues
Type de document :	Texte imprimé et/ou numérique
Auteurs :	Oriane LANDRY, Auteur ; Peter MITCHELL, Auteur ; Jacob A. BURACK, Auteur
Année de publication :	2009
Article en page(s) :	p.862-870
Langues :	Anglais (eng)
Mots-clés :	Autism endogenous-orienting attention spatial-cuing voluntary-control autistic-disorder cognition reaction-time visuo-spatial-functioning
Index. décimale :	PER Périodiques
Résumé :	Background: Are persons with autism spectrum disorders (ASD) slower than typically developing individuals to read the meaning of a symbolic cue in a visual orienting paradigm? Methods: Participants with ASD (n = 18) and performance mental age (PMA) matched typically developing children (n = 16) completed two endogenous orienting conditions in which the cue exposure time and response preparation time were manipulated within a consistent series of cue-target stimulus onset asynchronies (SOAs). Results: Participants with ASD displayed facilitation effects at all SOAs, whereas typically developing children displayed facilitation effects only at shorter SOAs. The magnitude of the facilitation effect was greater for the group with ASD at 400ms SOA. Both groups showed similar effects of condition, with similar patterns of facilitation in both conditions. Conclusion: Persons with ASD were not slower to read the symbolic cue, as the effect was elicited by brief cues within longer SOAs before target onset. The participants with ASD were also less efficient in using the predictability of the cues to guide responding. The difficulties of participants with ASD on endogenous orienting occur at the response selection level, not the perceptual level.
En ligne :	http://dx.doi.org/10.1111/j.1469-7610.2008.02049.x
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=771

[article] Orienting of visual attention among persons with autism spectrum disorders: reading versus responding to symbolic cues [Texte imprimé et/ou numérique] / Oriane LANDRY, Auteur ; Peter MITCHELL, Auteur ; Jacob A. BURACK, Auteur . - 2009 . - p.862-870.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 50-7 (July 2009) . - p.862-870

Mots-clés :	Autism endogenous-orienting attention spatial-cuing voluntary-control autistic-disorder cognition reaction-time visuo-spatial-functioning
Index. décimale :	PER Périodiques
Résumé :	Background: Are persons with autism spectrum disorders (ASD) slower than typically developing individuals to read the meaning of a symbolic cue in a visual orienting paradigm? Methods: Participants with ASD (n = 18) and performance mental age (PMA) matched typically developing children (n = 16) completed two endogenous orienting conditions in which the cue exposure time and response preparation time were manipulated within a consistent series of cue-target stimulus onset asynchronies (SOAs). Results: Participants with ASD displayed facilitation effects at all SOAs, whereas typically developing children displayed facilitation effects only at shorter SOAs. The magnitude of the facilitation effect was greater for the group with ASD at 400ms SOA. Both groups showed similar effects of condition, with similar patterns of facilitation in both conditions. Conclusion: Persons with ASD were not slower to read the symbolic cue, as the effect was elicited by brief cues within longer SOAs before target onset. The participants with ASD were also less efficient in using the predictability of the cues to guide responding. The difficulties of participants with ASD on endogenous orienting occur at the response selection level, not the perceptual level.
En ligne :	http://dx.doi.org/10.1111/j.1469-7610.2008.02049.x
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=771