dag.stenberg at nospam.helsinki.fi.invalid
Wed Jan 21 10:13:58 EST 2004
In bionet.neuroscience k p Collins <kpaulc@[----------]earthlink.net> wrote:
> Why I'm interested is with respect to my
> hypothes that the image stays on the retina.
> If it's so, then dream imagery, which is often
> extraordinarily-vivid, would 'have-to' occur
> via an internal feed-forward to the retina.
I just wrote in another post:
Do you perhaps think that dreams occur in the retina???????
What we perceive as dreams during our "dreaming-consciousness" is surely
constructed in the cortex under the influence of stimulation rising from
the parabrachial area of the pons and conveyed to the cortex by way of
the lateral geniculate nucleus of the thalamus. This activity seems to
have nothing to do with any retinal activity. On the contrary, I am
convinced that retinal output to the thalamus is depressed during that
time, although I should really check.
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