Robert Gurk <bob.g at gmx.de> wrote:
> On 20 Jul 2001, Harry Erwin wrote:
>> > I'm seeing evidence that trajectories of moving objects are
> > represented 4-dimensionally in the brain. Has anyone thought
> > about the topology of neural representations?
>> Harry, are you seeing evidence or are you seeking?
I'm modeling bat data. I'm seeing evidence.
>> Why would the brain need to "represent" a trajectory (or
> anything else) in such a costly way? Another (albeit more
> complicated) way would be to represent an abstract description
> of a trajectory. Something like "Object started moving 45° to
> the left and stopped 45° to the right. This took 10 seconds."
Dr. Harry Erwin, harry at dherwin.org, http://world.std.com/~herwin