Special camera simulates birds’ color vision
Have you ever wondered what the world looks like to birds? Well, Swedish scientists have created a camera that will show you. Amongst other things, it has revealed that birds see tree foliage as much more than just a uniform “wall of green.”
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Some birds are tetrachromats.
It would not be possible to simulate their vision to a human
dv said:
Some birds are tetrachromats.It would not be possible to simulate their vision to a human
Interesting, I wonder if tetrachromat humans exist a genetic mutation maybe
In humans, preliminary visual processing occurs in the neurons of the retina. It is not known how these nerves would respond to a new color channel, that is, whether they could handle it separately or just combine it in with an existing channel. Visual information leaves the eye by way of the optic nerve; it is not known whether the optic nerve has the spare capacity to handle a new color channel. A variety of final image processing takes place in the brain; it is not known how the various areas of the brain would respond if presented with a new color channel.
Mice, which normally have only two cone pigments, can be engineered to express a third cone pigment, and appear to demonstrate increased chromatic discrimination, arguing against some of these obstacles; however, the original publication’s claims about plasticity in the optic nerve have also been disputed.
Humans cannot see ultraviolet light directly because the lens of the eye blocks most light in the wavelength range of 300–400 nm; shorter wavelengths are blocked by the cornea. The photoreceptor cells of the retina are sensitive to near ultraviolet light, and people lacking a lens (a condition known as aphakia) see near ultraviolet light (down to 300 nm) as whitish blue, or for some wavelengths, whitish violet, probably because all three types of cones are roughly equally sensitive to ultraviolet light; however, blue cone cells are slightly more sensitive.
dv said:
Some birds are tetrachromats.It would not be possible to simulate their vision to a human
Some humans are tetrachromats, too. My mother was and I think Missy is.
However .that said … I agree.
Found this on a the web a few weeks ago.
mollwollfumble said:
dv said:
Some birds are tetrachromats.It would not be possible to simulate their vision to a human
Some humans are tetrachromats, too. My mother was and I think Missy is.
However .that said … I agree.
Found this on a the web a few weeks ago.
Which would help to explain bright plumage they’d be even more impressed than us and get that male bird some action
Cymek said:
mollwollfumble said:
dv said:
Some birds are tetrachromats.It would not be possible to simulate their vision to a human
Some humans are tetrachromats, too. My mother was and I think Missy is.
However .that said … I agree.
Found this on a the web a few weeks ago.
Which would help to explain bright plumage they’d be even more impressed than us and get that male bird some action
That could also be What We See / What Photoshop Sees
Very little research in peer reviewed journals to confirm human tetrachromats. And I have only found evidence of one being found. Ever.
https://www.ncbi.nlm.nih.gov/pubmed/20884587
Oh, look at that. I forgot to log out and log in. Again. Sorry. But you all know who kryten is by now.
buffy said:
Oh, look at that. I forgot to log out and log in. Again. Sorry. But you all know who kryten is by now.
No probs here.
roughbarked said:
buffy said:Oh, look at that. I forgot to log out and log in. Again. Sorry. But you all know who kryten is by now.
No probs here.
I didn’t. Who is Kryten?
mollwollfumble said:
roughbarked said:
buffy said:Oh, look at that. I forgot to log out and log in. Again. Sorry. But you all know who kryten is by now.
No probs here.
I didn’t. Who is Kryten?
buffy’s other half but it is usually buffy.
