Okay, I understand that visual fixation is essential for vision research. However, one of my recent findings says that fixation causes blindness under certain condition, such as very dilated pupils, or blurriness. Intentionally, I tried to maximize the effect of blindness with my special stimulus to warn the other researchers about any possible drawbacks of the fixation. Namely, I think it's always there with fixation, but the invisibility had several degrees; but I had reported the worst one. I am wondering whether this factor had been considered in the research based on behavioral recordings. You may find my article in the following link:
Preprint Fixation Induced Blindness
Isn't this just about Troxler fading? There are lots of demonstration on the web. Something to be aware of, but not usually a problem.
Hello Paul C Knox
Thanks for the info. and for revealing the treasure. Troxler fading requires peripheral presentation and extremely blurred images. Also the illusion presented in my article should be under the umbrella of Troxler fading, but interestingly, we noticed even non-blurry images whether presented in the center or in the peripheries got disappeared too for certain subjects who had extremely dilated pupil. The idea is why such blindness is happening, whether the image is blurred or not; and my answer is; it's due to the 'extremely' global center-surround antagonism between the fovea and the peripheries which is clearly appeared with Kitaoka strawberry, see the following image:
https://twitter.com/AkiyoshiKitaoka/status/836382313160171521/photo/1
I look forward for your follow up.
Warm wishes,
Ahmad
You know about the old retinal stabilization literature? Ditchburn & Ginsborg Nature, 170, 36–37 and its successors. Strictly speaking not fixation of course, but used to investigate the general phenomenon.
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