Hobby Electronics Basics Re: Empirical Beliefs & Hypothesis; Do they terminate in some beliefs that need no further justification, go on infinitely - on belief being justified by other that then need justification, or circle back upon itself in some way - constituting a sort o

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Re: Empirical Beliefs & Hypothesis; Do they terminate in some beliefs that need no further justification, go on infinitely - on belief being justified by other that then need justification, or circle back upon itself in some way - constituting a sort o stan 08-22-08
Posted by stan on August 22, 2008, 12:40 am
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Publius wrote:
>
>>> There's nothing subjective about "red."
>> (snip)
>>
>> The experience of red is what is subjective. There is no
>> way to know that anyone else experiences red exactly as you
>> do. I suspect that most people experience red about like I
>> do, but I also suspect there are some interesting (various
>> flavors of colorblindness) and even some extreme exceptions,
>> especially in those who experience synesthesia.
>
> Quite correct, although we really have no basis for an assumption that
> others' experience of red is anything like ours. It is an assumption of
> convenience only, and harmless for the most part.
>
> There is even some empirical evidence that different persons experience red
> differently. The gene for the red photopigment is carried on the X
> chromosome. There are two variants of this pigment, due two variants of
> that gene, which respond optimally to slightly different wavelengths. Men
> have only one X, so they carry one version of this gene or the other (and
> presumably perceive the same frequency differenly). Women, however, have
> two X's, and so may possess both versions of the red pigment, making them
> quadchromats. Their color perception may be quite different from us
> "normal" trichromats.
>
> Green is also carried on the X. but there is only one version of that
> pigment.

You may want to brush up on the available research. Due to the
increasing desire to advance bioengineering there are an increasing
number of papers available and digestable by someone without an MD.
Sight is a very hot research area for boiengineering and much is being
revealed every day. There are no difinitive answers yet but the
opto-electro-chemical events involved with processing light in the eye
are much, much more well know now than even 4 years ago.

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