Intact spectral but abnormal temporal processing of auditory stimuli in autism.
until further notice
Number of pages
SourceJournal of Autism and Developmental Disorders, 39, 5, (2009), pp. 742-750
Article / Letter to editor
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Donders Centre for Cognitive Neuroimaging
PI Group Memory and Emotion
PI Group MR Techniques in Brain Function
F.C. Donders Centre for Cognitive Neuroimaging
Journal of Autism and Developmental Disorders
Subject110 012 Social cognition of verbal communication; 150 000 MR Techniques in Brain Function; DCN 1: Perception and Action; NCEBP 9: Mental health
The perceptual pattern in autism has been related to either a specific localized processing deficit or a pathway-independent, complexity-specific anomaly. We examined auditory perception in autism using an auditory disembedding task that required spectral and temporal integration. 23 children with high-functioning-autism and 23 matched controls participated. Participants were presented with two-syllable words embedded in various auditory backgrounds (pink noise, moving ripple, amplitude-modulated pink noise, amplitude-modulated moving ripple) to assess speech-in-noise-reception thresholds. The gain in signal perception of pink noise with temporal dips relative to pink noise without temporal dips was smaller in children with autism (p = 0.008). Thus, the autism group was less able to integrate auditory information present in temporal dips in background sound, supporting the complexity-specific perceptual account.
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