Thanks to Eric Lundquis for typing this up and putting it on the internet. It’s an experiment done by the army and cited by Rubin, M. L., and Walls, G. L. (1969). Fundamentals of visual science. Springfield, Ill.: Thomas, p. 546, which is in turn cited Sekuler, R., and Blake, R. (1994). Perception (3rd ed.). Springfield, Ill.: Thomas, pp. 62-63:
The following story dramatizes how photopigments determine what one can see. During World War II, the United States Navy wanted its sailors to be able to see infrared signal lights that would be invisible to the enemy. Normally, it is impossible to see infrared radiation because, as pointed out earlier, the wavelengths are too long for human photopigments. In order for humans to see infrared, the spectral sensitivity of some human photopigment would have to be changed. Vision scientists knew that retinal, the derivative of vitamin A, was part of every photopigment molecule and that various forms of vitamin A existed. If the retina could be encouraged to use some alternative form of vitamin A in its manufacture of photopigments, the spectral sensitivity of those photopigments would be abnormal, perhaps extending into infrared radiation. Human volunteers were fed diets rich in an alternative form of vitamin A but deficient in the usual form. Over several months, the volunteers’ vision changed, giving them greater sensitivity to light of longer wavelengths. Though the experiment seemed to be working, it was aborted. The development of the “snooperscope,” an electronic device for seeing infrared radiation, made continuation of the experiment unnecessary (Rubin and Walls, 1969). Still, the experiment demonstrates that photopigments select what one can see; changing those photopigments would change one’s vision.
13 Comments
I had not known that the eye could be adapted that way does it say how long it would take to change the eye sensitivity and how much difference it made?
Way cool. Hack the matrix indeed.
i dont think any person will take risk of mofifyingretina
The Great Designer in the Sky made eyes. It is impossible to alter His design. Anti-Christian propaganda like this makes me sick.
Man wrote the Bible and invented God. It is impossible to prove the existance of an invisible being or creator. Anti-Science propaganda like this makes me sick.
To quote you:
“It is impossible to alter His design.”
Please, PLEASE, tell me you are trolling. Otherwise, PLEASE explain to me how you account for genetic mutations, as well as scientific GENETIC ENGINEERING that in the most literal sense ALTERS ‘HIS’ DESIGN.
Grow a brain.
you guessed it. trolling. it’s great fun.
Dude calm down. He was obviously being facetious. No serious Christian refers to God as “Great Designer in the Sky”. I LSTMS.
Genetic mutations are the result of sin, DNA was designed perfectly, all we have to work with is the deteriorated copies of copies of copies and this is one of the results of sin. Genetic engineering is an example of how humans have stewardship of the earth.
lol shut up. Read a biology textbook. someone from above didn’t design anything
Better not screw with that if you are pregnant or planning to become pregnant, though. Just in case.
Isn’t this a mutated form of the deliberately constructed rumour circulated in the UK during WWII, that RAF night-pilots were being fed a diet rich in carrots (a strong source of Vitamin A) to improve their ability to see in the dark?
Why bother? Because we didn’t want the Germans to know we’d developed a thing called radar.
Alternatively, bilberries.