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J Autism Dev Disord. 2017 Aug;47(8):2535-2543. doi: 10.1007/s10803-017-3172-7.

Multisensory Integration of Low-level Information in Autism Spectrum Disorder: Measuring Susceptibility to the Flash-Beep Illusion.

Author information

1
Perceptual Neuroscience Lab for Autism and Development, Montreal, QC, Canada.
2
School/Applied Child Psychology, Department of Education and Counselling Psychology, McGill University, Montreal, QC, Canada.
3
University of Montreal Center of Excellence for Pervasive Developmental Disorders (CETEDUM), Montreal, QC, Canada.
4
Centre for Mind/Brain Science (CIMeC), University of Trento, Trento, Italy.
5
Perceptual Neuroscience Lab for Autism and Development, Montreal, QC, Canada. armando.bertone@mcgill.ca.
6
School/Applied Child Psychology, Department of Education and Counselling Psychology, McGill University, Montreal, QC, Canada. armando.bertone@mcgill.ca.
7
University of Montreal Center of Excellence for Pervasive Developmental Disorders (CETEDUM), Montreal, QC, Canada. armando.bertone@mcgill.ca.

Abstract

Previous studies have suggested audiovisual multisensory integration (MSI) may be atypical in Autism Spectrum Disorder (ASD). However, much of the research having found an alteration in MSI in ASD involved socio-communicative stimuli. The goal of the current study was to investigate MSI abilities in ASD using lower-level stimuli that are not socio-communicative in nature by testing susceptibility to auditory-guided visual illusions. Adolescents and adults with ASD and typically-developing (TD) individuals were shown to have similar susceptibility to a fission illusion. However, the ASD group was significantly more susceptible to the fusion illusion. Results suggest that individuals with ASD demonstrate MSI on the flash-beep illusion task but that their integration of audiovisual sensory information may be less selective than for TD individuals.

KEYWORDS:

Auditory-visual integration; Autism spectrum disorder; Flash-beep illusion; Multisensory integration

PMID:
28536959
DOI:
10.1007/s10803-017-3172-7
[Indexed for MEDLINE]

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