CORRECTION:
>perhaps you're referring to sections that show the relatively-long
>inter-cortical fibers doing gyrus-to-gyrus "U"-turns?
>>obviously, going-by-way-of-a-"U" is longer than
>going-by-way-of-a-straight-line.
>
it's been so long since my days in the attic on Farmington Avenue, when i
worked all this stuff through.
i got out the Neuroanatomical 'charts' (photocopies out of library texts that i
'colored' and mounted on pasteboards :-) tonight and worked it through again.
i stand on what i've posted, even with respect to the relatively-short
gyrus-to-gyrus, 'arcuate', inter-cortical fibers.
to see the 'arrows', construct a simple example... select any group of three,
or more, inter-cortical projections. with the first, have its termination
distribution's topography go one way, with the second, the inverse way. have
the third just be an any-way, but uniform, topographical distribution.
into this mapped-mix, project the 'reticular system', in its
globally-within-cortex relatively-uniform way.
projections 1 and 2 will function inversely with respect to projection 3...
very-good, for instance, with respect to the antagonistic activation of flexors
and extensors with respect to the activation of projection 3.
another specific, more-complex, example, including 'ramp-architecture, is
discussed in AoK, Ap6.
this stuff embodies exceedingly-powerful information-processing capacities.
i Apologize for not presenting it whole, all at once.
other matter: Happy 166th B'day to Alfred Bernhard Nobel... happy cheers, if it
turns out i've helped, sad cheers, if i've hindered, your final wishes.
and HURRAH! for you, my Childhood "Teacher" and Hero, Thomas Edison, on this
the 120th anniversary of your perfecting the incandescent light bulb. you've
gotten me through a lot of long nights. Thank You for the incandescents... and
for the Light.
K. P. Collins (ken)
