Yes. Eyetracking is rather useless as what we see depends on the task we have to perform. We filter out what we don't need and don't even register it consciously. As such, general eye tracking studies can only tell you so much... Case in point: dancing gorilla awareness test, https://www.youtube.com/watch?v=vJG698U2Mvo.
Yes, filtering inputs is important and happens at every level of the sensory, nervous, and brain systems. I'm describing two substantially different levels of filtering and the dancing gorilla test isn't the one I'm focused on here, as it's the high-level attention filtering, as the gorilla is surely not filtered out by the subconscious eye motions (i.e., never seen), but filtered out by the higher-level attention mechanisms. I expect that much ad-blindness is indeed these high-level mechanisms.
What I'm wondering is if after decades of avoidance training, the separate gaze-orientation center (I forget it's proper name right now) which is subconscious and separate from the visual cortex, is trained enough to minimize the eye's gaze in the annoying areas such that the focus point never lands on them and they never get the opportunity to be read (and ignored by the higher level mechanisms). Eye tracking studies using actual eye tracks and not merely heatmaps would tell us the difference - if the tracks still follow the edges, bright spots, etc. into the adverts, then all the 'blindness' is cortical, but if the eye tracks avoid the ad zones, it's been trained down to a lower level.
Ah, I see. I think you are correct on that one. One could even say 'banner blindness' was was caused google to be successful in the beginning. Then, after a decade or so, people also became google ads blind. As a result the google ads became increasingly more like organic search results, until now, where you almost an't see the difference.
Which is 100% an intentional dark pattern designed to maximize profits for the ad economy by tricking you into looking at something you don't want to look at. If users liked ads and found them useful, their brains wouldn't automatically learn to tune them out. On the contrary, if ads were so valuable to users, it would be a plus to make it easier to see them!
I mean, search engines throw an absolutely enormous amount of computational power at "organically" discovering, classifying, indexing, and searching the entire internet for the most relevant and useful results, and then the dollar machine instantly demotes them below paid placement. The cognitive dissonance is astounding.
