J Storrs Hall, PhD wrote:
Note that in the brain, there is a fair extent to which functions are mapped
to physical areas -- this is why you can find out anything using fMRI, for
example,
This is not correct. fMRI gives the illusion that functions are mapped
to specific areas, whereas in fact what is usually being localized is
the signal picked up the fMRI scanner, not a 'function' as such.
The problem is analogous to the dialog-joke that starts with some kind
of noise, then Person A says "What was that?" and Person B responds "A
noise."
As I mentioned in my previous post, Trevor Harley and I went to the
trouble of detailing several examples of this in a recent paper.
Richard Loosemore
and is the source of the famous sensory and motor homunculi
(e.g. http://faculty.etsu.edu/currie/images/homunculus1.JPG).
There's plasticity but it's limited and operates over a timescale of days or
weeks or more.
The architecture seems to have a huge parallelism at the lower levels, but
ties into a serial bottleneck at the very top, i.e. conscious, level(s) --
hence the need for attentional mechanisms.
On Tuesday 01 April 2008 10:30:13 am, William Pearson wrote:
The resource allocation problem and why it needs to be solved first
How much memory and processing power should you apply to the following
things?:
Visual Processing
Reasoning
Sound Processing
Seeing past experiences and how they apply to the current one
Searching for new ways of doing things
Applying each heuristic
etc...
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