Hey! We discussed this work in a review paper of ours that is currently under review. Great work!

Isn't the Filled Duration Illusion usually about filling spaces with other discrete entities (analogous to the visual Oppel-Kundt illusion)? If so, I think those effects are substantively different, personally!

I’ll send over the latest draft that we had!

We’ve found the same when we’ve examined adherence to Weber’s law with different sorts of visual stimuli. Sam Clarke and I wrote up a paper recently that’s partly about this, but we haven’t known what to do with it.

Maybe! If we're thinking about such low-level explanations, then we'd have to apply the same skepticism to cases like number adaptation -- at which point we'd have to admit we cannot be certain about those cases, either.

I.e., per widely accepted standards, this is bona fide visual adaptation.

I agree it is tempting to think of low-level explanations! As we should for number, causality adaptation, etc.

But what low-level explanation could explain the cross-stimulus effects? We take that as a pretty strong answer to such concerns.

I’m not sure how they do so well so fast — but they do!

There's so much I want to say about why this paper is really exciting, but this is not ideally explained in a short thread. If you're interested in this sort of thing, I highly recommend checking out the paper for yourself!