What the Neocortex Does

Harry Erwin herwin at gmu.edu
Sun Aug 6 06:42:11 EST 2000


Gary Forbis <GaryForbis at email.msn.com> wrote:

> 
> Now, I'm going to be in real trouble.
> 
> Are there "computational processes in wet networks" or is it that the
> processes in wet networks can be described computationally?  Again,
> does a rock perform computations by falling?  What makes a process
> a computational process?

Well, bats do estimate the location of the prey targets that they are
attempting to capture, so it's not simply a rock falling. The mechanisms
of this localization seem to involve measurement of range by echo-delay,
azimuth by comparison of the signals at the two ears, and elevation by
comparison of the target spectrum with a continuum of spectral
characteristics. The bat also estimates target velocity and acceleration
from those data, and predicts the target movement over time as part of
an internal world model.

-- 
Harry Erwin, PhD, <mailto:herwin at gmu.edu>,Computational Neuroscientist 
(modeling bat behavior), Senior SW Analyst and Security Engineer, and 
Adjunct Professor of Computer Science, GMU. Looking--CV available at: 
<http://mason.gmu.edu/~herwin/CV.htm>






More information about the Neur-sci mailing list