k p Collins
kpaulc at [----------]earthlink.net
Wed Jan 21 13:07:31 EST 2004
"Dag Stenberg" <dag.stenberg at nospam.helsinki.fi.invalid> wrote in message
news:bum4vm$969$3 at oravannahka.helsinki.fi...
> In bionet.neuroscience k p Collins <kpaulc@[----------]earthlink.net>
> > 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:
And I replied to it.
> 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.
> Dag Stenberg
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