This is interesting but i find it strange than there is no tests with a controls groups with closed eyes. Maybe some of the observed effects are visual only or psychological and not tactile at all.
>are visual only or psychological and not tactile at all
I think for a visual only test you'd need something to the effect of a neuralink that gave control over the robot arm.
Otherwise we're dealing with a set of signal mixing where your brain is attempting to take the strongest/what it deems the most important signals and give an effect based on that. The eyes give us far more data than we can actually process so the has to filter down this data to a usable stream. This can also happen with tactile response, but the number of situations this occurs in is rather rare.
I guess what I'm trying to say, at the end of the day all observed effects (except maybe reflexes) are psychological as the brain is trying to create an accurate virtualization of the input data it's receiving and that more data doesn't necessarily mean better outcomes.
