Rick Marken (961023.1320) sez:
Bill Powers (961023.0745 MDT)
I think those efferents in the optic nerve must be doing something to the
retinal perceptual systems. What, I can't imagine.Bill Benzon --
But it probably has something to do with controlling perception.
Not necessarily. I think it is far more likely that the efferents in the
optic nerve are components of "image enhancement" operations (like lateral
inhibition).
But maybe "image enhancement" is done through a control loop & is not image
enhancement an active process? That is, the enhancement process is a
control process, one in which the perceptual system "tracks" the input
signals by "synthesizing" en efferent signal which matches the afferent
signal. This efferent signal is synthesized from the various reference
patterns stored in the memory units.
And, BTW, Hays and I did adopt an explicit model for the functioning of
those memory units. We used the OCCAM model developed by Nico Spinelli,
which was loosely based on Pribram's "holographic" hypothesis and knowledge
of neocortical microcircuitry. In know Spinelli did computer simulations &
established that the model would work as an associative memory unit where
the input of part of a pattern would cause the memory to output the whole
pattern. But Spinelli did not link a large number of such units together
in anything like the configuration Hays and I suggested.
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