Thread by @AutSciPerson

Just fyi, the sound they played to the autistic kids (were mostly boy-perceived)

was 73 dB SPL! That's loud!

"Each auditory stimulus in the sequence was a beep of 250 Hz frequency, 116 ms duration, and 73 dB volume, presented repeatedly with an inter-stimulus interval of 1 s."

https://twitter.com/AnnMemmott/status/1424315736449769472

There is a pretty large difference in how autistic kids responded compared to NT kids for auditory stimuli -

"The NT participant shows gradual reduction in ERP amplitude over time (negative slope), while the ASD participant shows an increase (positive slope)."

So, this is an assumption/interpretation, but it's likely that as neurotypical kids stopped attending to that sound and had it fade into the background,

autistic kids felt it was even more salient as the sound went on, which is definitely something I have experienced many times.

To me, this means there's even a larger physiologically difference in how autistic kids process sounds vs. neurotypical kids than was previously assumed by researchers.

I do wonder if having an EEG cap on (& the loudness) made the difference even more pronounced though.