Re: Humans (and cameras and scanners) do not have a color gamut (?)
Re: Humans (and cameras and scanners) do not have a color gamut (?)
- Subject: Re: Humans (and cameras and scanners) do not have a color gamut (?)
- From: Rich Wagner via colorsync-users <email@hidden>
- Date: Mon, 13 Jan 2020 18:07:26 -0700
> On Jan 13, 2020, at 5:12 PM, Wayne Bretl <email@hidden> wrote:
>
> I'm puzzled as to why no one has constructed a five-wavelength anomaloscope
> to research tetrachromacy. It seems to me that red, yellow, green, cyan, and
> blue LEDs are available that could be used in such a device.
Great question! While genetic testing shows the potential for tetrachromacy,
the proof is in the functional studies.
TETRACHROMATIC COLOR VISION
http://www.imbs.uci.edu/~kjameson/jamesonOUP3.pdf
The Veridicality of Color: A case study of potential human tetrachromacy.
https://www.imbs.uci.edu/research/MBS14-02.pdf
Genetic testing: Participant CA was color vision genotype assessed in 2012 by
an independent research laboratory which stated CA has the genes for retinal
tetrachromacy. Specifically, CA’s gene sequence for long-wavelength (L-)
sensitive type cells shows an Exon 3 codon 180 polymorphism in the nucleotide
sequence of her L-cone opsin gene electropherogram (personal communication from
Concetta Antico, May 28, 2014). CA’s genotype results are at http://
concettaantico.com/scientific-details/. CA was featured in a Fuji Television
Documentary entitled “Science Mysteries” that aired in June 2013 (see
http://www.youtube.com/watch? v=D9Eamc4JV9A). Future genetic analyses will
confirm or qualify these results, and explore additional photopigment opsin
allelic variations CA may possess.
See also:
Human Tetrachromacy Research Collaborative (http://tenthousandthings.info/) a
multidisciplinary group of researchers investigating the molecular genetic,
perceptual, behavioral and applied aspects of potential human tetrachromacy
-Rich
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