Audiovisual temporal integration and rapid temporal recalibration in adolescents and adults: Age-related changes and its correlation with autistic traits.
Typical teens and adults keep the same audiovisual timing window, but only adults can rapidly re-sync after sudden timing shifts.
01Research in Context
What this study did
Zhou et al. (2020) tested how teens and adults put sound and sight together in time. They used simple beeps and flashes, not speech. They also checked if people could quickly re-sync after the timing changed.
All participants were neurotypical, aged 11 to 25. The team measured each person’s temporal binding window and their short-term recalibration.
What they found
The window for binding sound and light stayed the same size across these ages. Adults could quickly re-sync when non-speech sounds drifted out of time, but teens could not.
Autistic traits, measured by a short questionnaire, did not predict how well anyone integrated or recalibrated.
How this fits with other research
Ainsworth et al. (2023) looked at autistic youth and saw the window narrow with age, bringing them closer to typical peers. Han-Yu’s null age effect in neurotypicals sets the baseline that Kirsty’s group is catching up to.
Freschl et al. (2021) found autistic toddlers have tighter visual timing windows than typical toddlers. This seems opposite, but the kids were only two years old. Timing differences may flip direction across development.
Stancliffe et al. (2007) also found no group difference in low-level audiovisual integration between autistic and typical adults, matching Han-Yu’s null link with autistic traits.
Why it matters
If you test audiovisual timing in teens, do not expect adult-like quick recalibration. Add extra practice trials or slower pace when using non-speech cues. The stable binding window means your assessment tool should work the same for a 13-year-old and a 22-year-old, but only if you give adults time to auto-correct timing shifts.
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02At a glance
03Original abstract
Temporal structure is a key factor in determining the relatedness of multisensory stimuli. Stimuli that are close in time are more likely to be integrated into a unified perceptual representation. To investigate the age-related developmental differences in audiovisual temporal integration and rapid temporal recalibration, we administered simultaneity judgment (SJ) tasks to a group of adolescents (11-14 years) and young adults (18-28 years). No age-related changes were found in the width of the temporal binding window within which participants are highly likely to combine multisensory stimuli. The main distinction between adolescents and adults was audiovisual temporal recalibration. Although participants of both age groups could rapidly recalibrate based on the previous trial for speech stimuli (i.e., syllable utterances), only adults but not adolescents showed short-term recalibration for simple and non-speech stimuli. In both adolescents and adults, no significant correlation was found between audiovisual temporal integration ability and autistic or schizotypal traits. These findings provide new information on the developmental trajectory of basic multisensory function and may have implications for neurodevelopmental disorders (e.g., autism) with altered audiovisual temporal integration. Autism Res 2020, 13: 615-626. © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Utilizing temporal cues to integrate and separate audiovisual information is a fundamental ability underlying higher order social communicative functions. This study examines the developmental changes of the ability to detect audiovisual asynchrony and rapidly adjust sensory decisions based on previous sensory input. In healthy adolescents and young adults, the correlation between autistic traits and audiovisual integration ability failed to reach a significant level. Therefore, more research is needed to examine whether impairment in basic sensory functions is correlated with broader autism phenotype in nonclinical populations. These results may help us understand altered multisensory integration in people with autism.
Autism research : official journal of the International Society for Autism Research, 2020 · doi:10.1002/aur.2249