What the study found
During rhythmic visual stimulation, neurotypical adults showed more backward traveling waves, while adults with autism spectrum disorder showed more forward traveling waves. The authors present this as different oscillatory wave dynamics during visual entrainment in the two groups.
Why the authors say this matters
The authors say these findings support predictive coding accounts of autistic perception, meaning accounts that propose a balance between predictions from the brain and incoming sensory evidence. They also conclude that traveling waves may be a useful way to study hierarchical brain communication and predictive dynamics in typical and atypical perception.
What the researchers tested
The researchers studied traveling wave dynamics during a visual entrainment task, which is a task where rhythmic visual stimulation is used to align brain activity to the stimulus. They compared scalp EEG (electroencephalography, a noninvasive measure of electrical brain activity) in neurotypical adults (N=25) and autistic adults (N=24).
What worked and what didn't
In neurotypical participants, the study replicated previous findings by showing an increase in backward waves during stimulation. In the autism group, the pattern was the opposite: there was a pronounced increase in forward waves at the entrained frequency during visual stimulation. The abstract does not report other outcomes beyond these wave-direction differences.
What to keep in mind
The abstract does not describe limitations, and it does not provide details about effect sizes, statistical values, or the full task design. The findings are limited to the visual entrainment context and the participant groups studied.
Key points
- Neurotypical adults showed increased backward waves during rhythmic visual stimulation.
- Adults with autism showed increased forward waves at the entrained frequency during visual stimulation.
- The authors link these results to predictive coding accounts of autistic perception.
- The study used scalp EEG during a visual entrainment task in 25 neurotypical and 24 autistic adults.
Disclosure
- Research title:
- Autistic adults showed more forward waves during visual stimulation
- Authors:
- Andrea Alamia, Jakob C B Schwenk, Johan Wagemans, Laurie‐Anne Sapey‐Triomphe
- Institutions:
- Centre National de la Recherche Scientifique, Université Fédérale de Toulouse Midi-Pyrénées, Centre de recherche cerveau et cognition, Allen Institute for Brain Science, VIB-KU Leuven Center for Brain & Disease Research, Université Claude Bernard Lyon 1, Inserm, Centre de Recherche en Neurosciences de Lyon
- Publication date:
- 2026-01-29
- OpenAlex record:
- View
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