On 03/06/08 5:39 PM, "Patrick Cassidy" <pat@xxxxxxxxx> wrote: (01)
> The notion that the meaning of words and reasoning ability grows from
> imagery based on remembered sensorimotor experience has gained some
> experimental support via Functional Magnetic Resonance Imaging (fMRI),
> reported recently by Tom Mitchell and Marcel Just Of Carnegie-Mellon:
> http://www.cmu.edu/news/archive/2008/May/may29_brainmeaning.shtml (02)
While I personally tend to agree with the direction, To be fair and
balanced, there are counter-arguments: (03)
* ³While the mechanistic information provided by fMRI is limited relative to
classical techniques of electrophysiology and molecular biology, this is a
general criticism of systems-level biology based upon changes in metabolism,
blood supply, or ensemble indices of electrical activity. Most researchers
believe that both "bottom-up" and "top-down" measurements are needed to
inform our understanding of the complex mechanisms that transpose neural
activity into behavior.² (04)
However - you used the word "experimental". I would give anything to be
involved in that research. <drool> (05)
Duane (06)
*
http://en.wikipedia.org/wiki/Functional_magnetic_resonance_imaging#Contrast_
MR
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