On Mon, Mar 4, 2013 at 11:27 PM, Pierz <pier...@gmail.com> wrote:

> Really Craig? It invalidates mechanistic assumptions about eyes? I'm sure
> the researchers would be astonished at such a wild conclusion. All the
> research shows is brain plasticity in interpreting signals from unusual
> neural pathways. How does that invalidate mechanism?
>

Yes, I was confused at first by the statement in the first paragraph that
the eyes "can confer vision without a direct neural connection to the
brain" (maybe Craig was confused by this too?), but it seems that by
"direct neural connection" they just mean an optic nerve wired directly to
the brain, bypassing the spinal cord like the optic nerve normally does,
since later in the article they do mention the eyes were connected
(indirectly) to the brain via the spinal cord: "No one would have guessed
that eyes on the flank of a tadpole could see, especially when wired only
to the spinal cord and not the brain."

Jesse



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