53 lines
2.0 KiB
Plaintext
53 lines
2.0 KiB
Plaintext
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From: jimb@orion.oac.uci.edu (Jim Barrera)
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Subject: Re: Blind on lsd (?)
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Message-ID: <2B5729D2.11825@news.service.uci.edu>
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Newsgroups: alt.drugs
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Date: 15 Jan 93 21:17:06 GMT
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Seer Snively <snively@cybernet.cse.fau.edu> writes:
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> If someone who is blind (because of a phyical problem with the eye, no
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> brain problems) or who is colour blind took lsd, would they "see" colour?
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>
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> Does anyone think they would get visuals? Does anyone KNOW (first or 2nd
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> hand)?
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Hello. My evil twin(tm) is a green-blind deuteranomal.
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Due to the presence of an annoying little recessive gene
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on his X-chromosome, the spectral sensitivity of his
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middle cones peak at a different wavelength of light
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than a "normal" individual. Thus, greens look different
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to him, or not like "green" at all...
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He enjoys both hiking in the wilderness and psychadelics,
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especially simutaneously. In the wilderness, it's often
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useful to be able to spot red objects amidst all the
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green (e.g. reddish poison oak leaves in the green scrub
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oak). He has found that LSD enhances his perception of
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colors, but does not greatly improve his differential
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perception of green. While his hiking companions are
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constantly pointing out red-tailed hawks, red manzanita
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bark, or the poison oak he's currently standing in, he
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still has problems picking them out of a green background.
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So when the iodopsin in one or more of the sets of cones
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is abnormal, the signals being sent to the brain are
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the same, with or without psychadelics. How the brain
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on LSD recognizes these signals may be different, but he
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hasn't found that the green perception improves.
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But he's continuing the therapy in hopes of improvement...
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As far as *visuals* are concerned, he hasn't noticed any
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really special greens that he doesn't see in real life.
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But here's a question: does this hypothetical individual
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who is colorblind (total achromat, which is rare) _dream_
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in color? Would he/she know if the dreams were in "color"?
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Would he/she know if the hallucinations were in "color"?
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`jimb
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"LSD: not a cure, but good therapy for color blindness."
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