The ambiguousness of the statement was due to my choice of words. What I mean is if we chose to interact with something we perceive to be ‘external’ (reality) using tactile sensory organs (touch) – the perception of touch is actually the firing of nerve ends (at the point of contact) sending a raw information along its length to the brain.Quote:
Originally Posted by Sophroniscus
This information has no reality/meaning other than what the brain gives it – an example apparent in the medical condition called synesthesia (this condition mixes up sensory information for sufferers, so some can ‘feel’ in a tactile sence ‘taste’, or see words and sound in their visual field). Other experiments of simple nerve induction can break away the boundaries of the body, so one can seemingly feel pain in mid air outside of the perceived body. This pain does not exist in mid air - it's simply the brains model of external reality breaking down slightly.
This raw information is then processed by the brain into what the conscious awareness (us) perceives as ‘touch’. Our awareness knows the brain generated interpretation of the attempt to touch external reality, rather than the raw nerve firing which triggered it. But even the raw nerve firing is not the thing we touched - it is a reaction to it. So even at the most basic level of sensory perception generation - we never really interact with the object we attempt to.
This is the case with all sensory perception.
If I touch, taste, hear, smell and see a solid lucid dream environment – that does not mean that environment has an existence outside of brain/mind just by the nature of me experiencing it.
Sensory perceptions have no existence outside of those generated by the brain/mind – this can be seen in cases of people born blind or deaf – such concepts as sight or sound are beyond them.
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Originally Posted by Chris
- I know you haven't defined your terms. I thought that is what I said.[/*:m:3i53bcja]
- You say, "It’s known that mind cannot distinguish between imagination and external reality..." But I do it all the time! For example, I can imagine reaching over to pick up an imaginary coffee cup, without actually doing so. Perhaps you are using some terms ambiguously?
- There is a difference between a sentient awareness controlling action based upon a lifetime of learnt response (distinguishing between internal and external reality) and base generation of perception from electronic impulses triggered by sensory organs. As you notice you said ‘I do that [all of the time]’ not ‘my mind/brain does that [all of the time]’.
There are cases of sentient awareness being able to interact with objects which do not exist in physical reality. Anticholergenics (http://wikipedia.lotsofinformation.c...p?title=Datura) are chemical compounds which can make a user see fully 3d interactive hallucinations in external reality. They can smoke imaginary cigarettes, drink imaginary drinks – actually experiencing the entire group of sensations one would experience if a drink was really consumed, have detailed conversations with people who are really not there. They are very dangerous substances (before people get ideas).
These chemicals show that even on the sentient awareness level one can have their external reality model completely fooled. They also show that our perception of external reality does not have to match what actually might be there - it only matches what our brain generates.
I would disagree with that inference; the body is controlled by brain/mind, and so on its own it knows nothing but what the brain/mind informs it of(within the boundaries of its mode of operation).Quote:
[/*:m:3i53bcja]- Furthermore, the example given would seem to indicate that the body may not distinguish between imagination and experience.
But if you did not have any form of sensory organs, your hand would be useless as you would never even know if you moved it or not – let alone carried out your desired intention.Quote:
[/*:m:3i53bcja]- Sensory organs do what they do. My hand, for example, is a sensory organ. But I use it for other purposes, as well.
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[/*:m:3i53bcja]- You write... "Abstract knowledge, by definition can be no more than belief system." By definition abstract knowledge is knowledge drawn from abstraction. For example, a child sees a variety of objects. He discovers that such sensory phantasms can be divided into categories: animal, vegetable, mineral... I would not call such knowledge a belief. To be a belief one must add a predicate. For example, many have accepted as belief that all swans are white.[/*:m:3i53bcja]
A belief system can be shared by more than one human. The categorisation of objects into seemingly related groups has no meaning outside that of human society (and only parts of human society which have learnt such categorisation), such categorisation are based entirely upon human perception and logic. For example – if humans had a narrow sense of visual perception – on par with a dog perhaps (seeing no colour only intensity of light) then It would be arguable that all swans are white. They only seem to be due to the current nature of our brains visual interpretation and the range of light frequencies (and intensities) that our eye organs can generate. I guess an argument could be made that a swams feathers absorbs wavelengths between x micron and x micron - and so classify it as such a colour (wavelength range).Quote:
Please forgive my being tedious. But in philosophy one must be very careful, lest one be drawn into absolute statements where only relative ones are appropriate.
That might be the case – who can say ;)Quote:
By the way... I suspect that Huxley may have used too much sacramental mescaline. 8) If so, it might have affected his judgment.