A significant between‐group difference in MSI was evident in the literature , with individuals with ASD demonstrating worse audiovisual integration on average across studies compared to TD controls .
This effect was moderated by mean participant age , such that between‐group differences were more pronounced in younger sample s. The mean correlation between MSI and autism and related symptomatology was also significant , indicating that increased audiovisual integration in individuals with ASD is associated with better language /communication abilities and /or reduced autism symptom severity in the extant literature .
This effect was moderated by whether the stimuli were linguistic versus non‐linguistic in nature , such that correlation magnitudes tended to be significantly greater when linguistic stimuli were utilized in the measure of MSI .
& NA ; An ever‐growing literature has aim ed to determine how individuals with autism spectrum disorder ( ASD ) differ from their typically developing ( TD ) peers on measures of multisensory integration ( MSI ) and to ascertain the degree to which differences in MSI are associated with the broad range of symptoms associated with ASD .
Findings , however , have been highly variable across the studies carried out to date .
The present work systematic ally review s and quantitatively synthesizes the large literature on audiovisual MSI  in individuals with ASD to evaluate the cumulative evidence for ( a ) group differences between individuals with ASD and TD peers , ( b ) correlations between MSI and autism symptoms in individuals with ASD and ( c ) study level factors that may moderate findings ( i.e. , explain differential effects ) observed across studies .
Slipped lips: onset asynchrony detection of auditory-visual language in autism.
BACKGROUND It has frequently been suggested that individuals with autism spectrum disorder ( ASD ) have deficits in auditory-visual ( AV ) sensory integration . Studies of language integration have mostly used non-word syllables presented in congruent and incongruent AV combinations and demonstrated reduced influence of visual speech in individuals with ASD . The aim of our study was to test whether adolescents with high-functioning autism are able to integrate AV information of meaningful , phrase-length language in a task of onset asynchrony detection . METHODS Participants were 25 adolescents with ASD and 25 typically developing ( TD ) controls . The stimuli were video clips of complete phrases using simple , commonly occurring words . The clips were digitally manipulated to have the video precede the corresponding audio by 0 , 4 , 6 , 8 , 10 , 12 , or 14 video frames , a range of 0 - 500ms . Participants were shown the video clips in r and om order and asked to indicate whether each clip was in-synch or not . RESULTS There were no differences between adolescents with ASD and their TD peers in accuracy of onset asynchrony detection at any slip rate . CONCLUSION These data indicate that adolescents with ASD are able to integrate auditory and visual components in a task of onset asynchrony detection using natural , phrase-length language stimuli . We propose that the meaningful nature of the language stimuli in combination with presentation in a non-distracting environment allowed adolescents with autism spectrum disorder to demonstrate preserved accuracy for bi-modal AV integration
A significant between‐group difference in MSI was evident in the literature , with individuals with ASD demonstrating worse audiovisual integration on average across studies compared to TD controls .
This effect was moderated by mean participant age , such that between‐group differences were more pronounced in younger sample s. The mean correlation between MSI and autism and related symptomatology was also significant , indicating that increased audiovisual integration in individuals with ASD is associated with better language /communication abilities and /or reduced autism symptom severity in the extant literature .
This effect was moderated by whether the stimuli were linguistic versus non‐linguistic in nature , such that correlation magnitudes tended to be significantly greater when linguistic stimuli were utilized in the measure of MSI .
& NA ; An ever‐growing literature has aim ed to determine how individuals with autism spectrum disorder ( ASD ) differ from their typically developing ( TD ) peers on measures of multisensory integration ( MSI ) and to ascertain the degree to which differences in MSI are associated with the broad range of symptoms associated with ASD .
Findings , however , have been highly variable across the studies carried out to date .
The present work systematic ally review s and quantitatively synthesizes the large literature on audiovisual MSI  in individuals with ASD to evaluate the cumulative evidence for ( a ) group differences between individuals with ASD and TD peers , ( b ) correlations between MSI and autism symptoms in individuals with ASD and ( c ) study level factors that may moderate findings ( i.e. , explain differential effects ) observed across studies .