question re: bandwidth/processing power of visual & cerebral cortices

HARRY R. ERWIN herwin at mason1.gmu.edu
Wed Sep 28 07:44:53 EST 1994


David M. Diodato asks:
>What are the bandwidths of the human visual and cerebral cortices in, say,
>Megabits/second?

Well, some of the components of the visual pathway operate in analog mode.
For example, no spiking is observed in the retina before the ganglion
cells. How do you proposed to measure the bandwidth between two systems
that communicate via graded potentials (i.e., electrical synapses)? There
is moderately similar behavior in some places in the pathway from area V1
to RH. Trying to measure the bandwidth of this pathway is a hard problem. 

--
Harry Erwin
Internet: herwin at gmu.edu 
Just a dumb graduate student working on Katchalsky network models....
(And if you believe that, I have a ranch in California to sell you.)



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