14 February 2004

different perceptions are hardwired

This from New Scientist 31 Jan 04 p40, [with thanks to Rod Anderson for precis].
"The genes of taste, smell, touch and vision are being explored. They are highly variable between individuals. For example, people vary widely in their perception of "bitter" taste as in tonic water. Sight has even more variability, with four versions of the gene that codes for "red" receptors and another four for green. Blue seems to be standard. Some women even appear to have four different types of receptor cone instead of the three types the rest of us have, enabling them to tell the difference between "identical" shades of green.
Pain receptors also vary. But the big implication could be for consciousness research. The key is often seen as how the physical world becomes our private sensory experience. If the inputs are so varied, it gives new problems to solve in trying to find out what someone else's consciousness is like. Perhaps, example. If your perceptions give little weight to sense of touch and smell and so on, your theology will be different. "

I think that this also throws us right back into debates about perception and truth and about pluralism. However, it should be noted that it adds nothing new in principle to the philosophical issues around, solipsism, relativity, positivism, realism etc. It does, seems to me, intensify the need to engage seriously with post-modern and 'new age' views which take personal experience and relativity seriously. It does also strengthen the case for taking a dialogical ['open source'] approach to theology, perhaps.

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