keithamusMar 10

For those who want to test their perception of colour, I made a little game called "What's My JND"

https://www.keithcirkel.co.uk/whats-my-jnd/?r=ARUjKP__-ve-

What's My JND?

Find your Just Noticeable Difference in colour perception. How small a colour difference can you actually see?

Show threadTAL
@keithamus cool utility! 0.0037 on a pixel 9 pro in a sunny room. Do you know if age is a factor for color perception? Would have to think sex is, if xkcd has learned me anything
Mar 10 at 12:14pmWeb
Show threadkeithamusMar 10
@tal age must be a factor, anecdotally, sex seems to be. Also the quality of display definitely matters, but worse displays might be better to an extent!
Show threadRubyMar 10
@keithamus @tal I always thought that comic was about how m/f genders are _taught_ to name colours, rather than the physical perception of them
Show threadTALMar 10
@Rubelicious I think it can be both, of be open to the idea of neuroplasticity in color perception.
Show threadRubyMar 10
@tal this is one of the most fascinating threads I've read in a long time 😊
Show threadTALMar 10
@keithamus I'd willingly share those details if you ever want to add the option
Show threadkeithamusMar 10
@tal ah it's mostly for fun, I'm not tracking anything (other than visits to my site). I'm not what I'd do with the data if I had it!
Show threadTALMar 10
@keithamus I imagine it might be useful to a researcher somewhere, albeit uncontrolled
Show threadChris Lilley 🏴󠁧󠁢󠁳󠁣󠁴󠁿Mar 10

@tal @keithamus Age is definitely a factor, basically we start viewing through a yellowish filter.

"Individual differences occur in the density of the pigment in the lens,
in the density of macular pigment at the fovea, and in the axial optical density of the photopigment in the photo-
receptor."

Stockman (2019) Cone fundamentals and CIE standards. Current Opinion in Behavioral Sciences 2019, 30:87–93

Show threadTALMar 10
@svgeesus @keithamus
This would track with me finding the blue swatches most difficult, if I understand correctly?
(with me being 50)
Show threadLunkkiMar 12

@tal @keithamus

A friend told me that estrogen level has an effect to perception, so i digged this out:

https://jmvh.org/article/the-menstrual-cycle-and-vision-the-eye-is-a-gender-specific-and-hormonally-sensitive-target-organ/

The Menstrual Cycle and Vision: The Eye is a Gender Specific and Hormonally Sensitive Target Organ

The menstrual cycle is an integral component of life for most women, and it exerts its influence for a major portion of their lives. Much research has been directed to the hormonal changes across the cycle, and their potential to alter a female’s physical, physiological and psychological wellbeing. The physiology of the menstrual cycle and... Read more »

JMVH
Show threadTALMar 12
Also more men are color blind and women are more likely to have a fourth cone variant