Human Fovea Detector

https://www.shadertoy.com/view/4dsXzM

#HackerNews #Human #Fovea #Detector #Technology #Innovation #Vision #Science

5/We identified 912 bipolar cells in he HFseg1 volume, including the major types recognized in non-human primates, though with some notable differences (#connectomic, #retina, #fovea).

https://www.biorxiv.org/content/10.1101/2025.04.05.647403v2

Size matters: how small is your #fovea? https://www.shadertoy.com/view/4dsXzM fovea detector; look at the small area with rotating crosses in your central vision (best used in full-screen mode); this is the area typically stimulated by retinal implants and brain implants for restoring vision.

@_psee

it often feels odd, like the sketched version is reality

Not odd at all! /You are experiencing how #perception works./

What we perceive is a #reality built up in parts from data the #fovea of our eye gathers flickering around and our brain mixing it with past experience and an a presumed understanding of our context (the model of our surroundings). This is why we can't find our keys when they are right in front of us: we expect them elsewhere and movement or a flash of metal didn't add the detail we needed to mentally construct the scene. We cannot see a reality we cannot mentally visualize!

What is happening is through your practice of seeing and rendering your #art is that your brain is constructing a sense of the art being real, or becoming real as you would while #painting or #drawing it. You are seeing the world as you want to #sketch it.

This is a good thing.

I have the same sense in my #photography. Two things I took away from my college drawing classes was being able to see negative spaces, shadows and volume, and being able to see white as colored by reflection or illumination, that is white as blue outside in the shade. When I look around, I see resultant photographs and know what will render and what won't, and when to lift the #lens.

I trust that sense, and I'm sure you do or will soon.
#BoostingIsSharing
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#writing #writingcommunity

🔵 L’occhio quando fissa è fermo? Cosa sono i movimenti saccadici?

👉 Leggi l’articolo: https://medicinaonline.co/2017/02/12/locchio-quando-fissa-e-fermo-cosa-sono-i-movimenti-saccadici/

✅ #occhio #saccade #saccadici #sguardo #vista #fovea #retina #macula #EmilioAlessioLoiacono #MedicinaOnLine