- Anybody who's taken psychedelic drugs has likely seen this color already. Overlapping sensitivity of the cone cells doesn't matter when the image is generated without light. Psychedelic visuals are full of impossibly saturated colors.
You can also approximate this effect by tiring out some of the cone cells by staring at a bright area of saturated color, then looking at a different color. See:
https://en.wikipedia.org/wiki/Impossible_color#Chimerical_co...
by echoangle
1 subcomments
- So basically, the sensitivity curves of the receptors in the eye overlap ( https://commons.m.wikimedia.org/wiki/File:Cone-fundamentals-... ) so a signal can’t excite a single type of receptor, but they did it by using a focused laser to exclusively target the one type of receptor?
by perihelions
2 subcomments
- This is fascinating. I didn't realize there are so few cone cells, that you can step through literally *all* of them with a digital controller.
- "These laser microdoses are delivered at a rate of 10⁵ per second to a population of 10³ cones[...] individually fiber-coupled acousto-optic modulator that can modulate laser intensity up to 50 MHz[...] This laser spot is scanned in a raster pattern over a 0.9° square field of view using orthogonally oriented resonant and galvo mirrors, with a frame resolution of 512 × 256 pixels and a frame rate of 60 Hz..."
https://www.science.org/doi/10.1126/sciadv.adu1052
by davidmurdoch
0 subcomment
- Its be neat to incorporate this into a AR headset. They could potentially map non-visual wavelengths to new colors (or is just the one possible?). Probably never going to be practical due to the precision it requires, but imagine seeing actual colors with IR/XRAY/UV overlayed on to in a new color!
Reminds me of the Cylon in Battlestar Galactica who hated his creators for giving him senses limited to human limits when machines could do so much more.
Someone should at the least make a Sci Fi movie with this idea as a plot device.
- This is a bit like fuzzing the visual system with invalid input. ;)
by karaterobot
1 subcomments
- My knowledge of color vision is hand-wavey. This isn't artificially simulated (or stimulated) tetrachromacy, right?
by patrickmay
2 subcomments
- Octarine?
- Original paper here - https://news.ycombinator.com/item?id=43734141
- Cool, but I wish it said how the participants subjectively would have described the experience.
- They saw a hooloovoo -- a super-intelligent shade of blue!
by Distilitron
0 subcomment
- [flagged]
by coolThingsFirst
2 subcomments
- This is always weird. Like the environment is basically that which can be interpreted by sense. So then what is base reality and does it even exist?
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