Re: Questions about a distribution

Scott Seidman <namdiesttocs@xxxxxxxxxxxxxx> wrote in
news:Xns9A1486992A285scottseidmanmindspri@xxxxxxxxxxx:

Richard Ulrich <Rich.Ulrich@xxxxxxxxxxx> wrote in
news:b5n8n39v3ehpfr3nb1knt24ukqt57lim3q@xxxxxxx:

For folks who are *really fast*, I've wondered how
the time compares to the minimum number of axon
firings.

It would be the combo of activation of receptors and the transmission
time over the course of the pathways.

At some level, yes, but most of the response is overhead. A good
portion of the delay is going to be in vision, where the delay between
retina and Lateral Geniculate Nucleus is probably about 50-100 ms, and
that's well before visual cortex.

It is not necessarily the case that a "flash" signal would need to reach
the visual cortex for processing to occur. I realize that that is the
typical pathway taught in Neuroanatomy 101, but would not exclude the
possibility that some sort of non-specific pathway may bypass the
occipital cortex.

Then, the brain needs to somehow
generate a signal on primary motor strip, and that process is going to
be highly distributed through big portions of brain. From primary
motor strip to muscle, there will be two synapses, one in spinal cord
and one at the muscle, for maybe 4-10ms of delay.

Agree that there is an implied sequence that that there is some lower
bound imposed by physiology.

--
david winsemius

.