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Questions about response times to auditory/visual stimuli

Didier A. Depireux didier at Glue.umd.edu
Wed Feb 10 15:04:00 EST 1999


R.Hill at iti.salford.ac.uk wrote:
: Why does the response time take so long compared with the  time taken
: for a reflex.

Someone will give a more intelligent answer than me, but I think that the biggest lag
is at the level of the retina, where receptors take a long time to accumulate before
providing a potential strong enough to generate an action potential (how much more
cursory can you get?). In the cochlea, all that happens is a travelling wave that
propagates up the cochlea (2-3 ms) and a transduction in the inner hair cells, which
takes a ms or so. 

							Didier

--
Didier A Depireux                              didier at isr.umd.edu
Neural Systems Lab                 http://www.isr.umd.edu/~didier
Institute for Systems Research          Phone: 301-405-6557 (off)
University of Maryland                                -6596 (lab)
College Park MD 20742 USA                     Fax: 1-301-314-9920



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