[article] 
inJournal of Autism and Developmental Disorders > 43-10 (October 2013) . - p.2312-2328

Titre :	Impaired Timing and Frequency Discrimination in High-functioning Autism Spectrum Disorders
Type de document :	Texte imprimé et/ou numérique
Auteurs :	Anjali BHATARA, Auteur ; Talin BABIKIAN, Auteur ; Elizabeth LAUGESON, Auteur ; Raffi TACHDJIAN, Auteur ; Yvonne S. SININGER, Auteur
Article en page(s) :	p.2312-2328
Langues :	Anglais (eng)
Mots-clés :	Auditory perception  Psychophysics  Hyper-sensitivity  Asperger syndrome  High-functioning autism
Index. décimale :	PER Périodiques
Résumé :	Individuals with autism spectrum disorders (ASD) frequently demonstrate preserved or enhanced frequency perception but impaired timing perception. The present study investigated the processing of spectral and temporal information in 12 adolescents with ASD and 15 age-matched controls. Participants completed two psychoacoustic tasks: one determined frequency difference limens, and the other determined gap detection thresholds. Results showed impaired frequency discrimination at the highest standard frequency in the ASD group but no overall difference between groups. However, when groups were defined by auditory hyper-sensitivity, a group difference arose. For the gap detection task, the ASD group demonstrated elevated thresholds. This supports previous research demonstrating a deficit in ASD in temporal perception and suggests a connection between hyper-sensitivity and frequency discrimination abilities.
En ligne :	http://dx.doi.org/10.1007/s10803-013-1778-y
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=215

[article] Impaired Timing and Frequency Discrimination in High-functioning Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Anjali BHATARA, Auteur ; Talin BABIKIAN, Auteur ; Elizabeth LAUGESON, Auteur ; Raffi TACHDJIAN, Auteur ; Yvonne S. SININGER, Auteur . - p.2312-2328.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 43-10 (October 2013) . - p.2312-2328

Mots-clés :	Auditory perception  Psychophysics  Hyper-sensitivity  Asperger syndrome  High-functioning autism
Index. décimale :	PER Périodiques
Résumé :	Individuals with autism spectrum disorders (ASD) frequently demonstrate preserved or enhanced frequency perception but impaired timing perception. The present study investigated the processing of spectral and temporal information in 12 adolescents with ASD and 15 age-matched controls. Participants completed two psychoacoustic tasks: one determined frequency difference limens, and the other determined gap detection thresholds. Results showed impaired frequency discrimination at the highest standard frequency in the ASD group but no overall difference between groups. However, when groups were defined by auditory hyper-sensitivity, a group difference arose. For the gap detection task, the ASD group demonstrated elevated thresholds. This supports previous research demonstrating a deficit in ASD in temporal perception and suggests a connection between hyper-sensitivity and frequency discrimination abilities.
En ligne :	http://dx.doi.org/10.1007/s10803-013-1778-y
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=215