Indeed, see also our older work: the effect of the Müller-Lyer illusion on pointing movements (vector coding, i.e., use of allocentric cues) depends on the real-time availability of information. doi.org/10.1007/s002...

Perception is thus inconsistent. It is not an optimal representation of the external world, but provides (possibly inconsistent) answers to equations: doi.org/10.3389/fnin...

There are two reasons why I would predict "no" for real-time grasping. Grasping is not based on size, but on positions (see, for instance, doi.org/10.1007/s002...). Secondly, the illusion does not change the perceived size itself, but only the change thereof (perceived expansion).

Terecht trots: het ziet er zeer veelbelovend uit! Jammer dat we tot na de zomer moeten wachten...

The simulated distribution of measured saccades (black) consists of 60% saccades to the target (green), 20% to the distractor (red), and 20% to the global average (blue). The red and green curves have a 7° standard deviation; for the blue curve it is 20% of the target-detractor distance.

Vision Research hides this letter behind a paywall, use authors.elsevier.com/a/1knWV9jMUG... for free access until May 07, 2025, or send me a note.

This finding of Fuchs & Heed aligns very well with our view that perception is not about creating a consistent internal representation of the outside world, but about answering specific questions about the outside world. doi.org/10.3389/fnin...

In the same paper, I also show that if one applies the most popular method to the average age of a youth soccer team, we get a result (red) that differs from the actual mean (blue):

Have a look at the backside. SFN lets you choose…

Report which outcome of a statistical test will lead to the rejection of a hypothesis (and which to support), and do not report outcomes of irrelevant tests.