dopamine percentages

James Woodson jwoodson at
Mon Sep 30 10:40:28 EST 1996

I think referring to any form of neural activity in a percentage manner is
somewhat unfounded.  Neural activity is far too temporally variable.  It
might however, be appropriate to take estimates of the percentage of
dopaminergic neurons in a particular part of the brain.  As a whole,
however, percentage values tell you nothing.  Regardless, the
neurotransmitter dependent activity has to operate at a receptor site, and
the are 5 or 6 known D receptors all in different brain regions.  Good
luck. James

James Woodson* (jwoodson at
Dept. of Psychology - Behavioral Neuroscience
University of California at Los Angeles
405 Hilgard Ave.
Los Angeles, CA 90095

 "People that are really weird can get into sensitive positions and have a
tremendous impact on history."        --Vice President Dan Quayle

*Research in Learned Helplessness, Adenosine,
 Anatomical Sex Differences in the Brain (SDN-POA), and Sexual Motivation

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