I can't reconcile the phenomena of instinct very well

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kackermann
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I can't reconcile the phenomena of instinct very well

Post by kackermann » Mon Jul 30, 2007 1:23 pm

A salmon navigates complex waterways to spawn. The Arctic Tern migrates half way around the world.

If instinct is coded for in DNA, then that means, somehow, DNA acquired a representation of the physical world. How incredible is that?

Also, is it coded to prewire neural connections that mimic experience? Is it prewired experience, or is a map?

Thank you

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mith
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Post by mith » Mon Jul 30, 2007 6:57 pm

There's a theory that salmon jump up to smell the odors of the environment...so it might not be much of a map.
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Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
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kotoreru
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Post by kotoreru » Tue Jul 31, 2007 10:15 am

Migratory birds apparently have magnetite crystals in their heads which likely interact with the Earth's magnetic fields to give the bird a sense of direction.

Not sure if there is any evidence to suggest that the environment, or aspects of it, are mapped in the genome of any organism.
"What are humans if they don't learn at University? Animals, yes."

^^One of my ex-girlfriends said that. I stress the ex part.

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khenwood
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Post by khenwood » Tue Jul 31, 2007 4:08 pm

Kackermann -

If you'd like to pick up a book on the topic, you can try Hardwired Behavior: What Neuroscience Reveals about Morality by Laurence Tancredi.

It's on a loooong list of books I need to read.
Will I ever reach the end of this list? Probably not. :)
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Darby
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Post by Darby » Tue Jul 31, 2007 9:36 pm

Many of those types of instincts have a strong learning component - the timing and the basic directions, maybe the distance, may be instinctive, for instance, but finding the right spot once you get there is more flexible.

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kotoreru
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Post by kotoreru » Wed Aug 01, 2007 10:07 am

Indeed, I actually believe that the migration patterns of North Sea Cod has been changing for some time. It's possibly a result of lowering the overall age of the fish through overfishing i.e. 'population memory' lost with older fish.
"What are humans if they don't learn at University? Animals, yes."

^^One of my ex-girlfriends said that. I stress the ex part.

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