
Originally Posted by
austintorn@aol.com
The brain chemistry is the interplay of neurotransmitters, receptors, ionic channels, signal pathways, openings of cell energy and biosynthesis of neurons and cell partners. (as Mikal put it so well)
When, for example, serotonin drops, due to no exercise, wrong food, genetics, or sever trauma/life, one thought's resort to those of the primitive brain stem: irrationality, anger, severe obsession, clinical depression, 200 bpm heartbeats of anxiety, etc.
Too much dopamine (or was it too little) leads to excessive risk-taking behavior since normals "risks" (life) don't give much satisfaction.
And on and on. These chemical states can pretty much ruin a person's life.
To a much lesser degree, they can happen anytime to anyone, too, perhaps just showing up as a mild bad mood.
DSM-IV contains all the descriptions of abnormal behavior.
Some behavior is only "abnormal", say, in a classroom, like ADHD, but was extremely useful long ago, for those who could see what was happening all over the place didn't get eaten by wild animals as much as one focusing on only one thing of the main event (if the tiger coming out of nowhere was not the main event).
Mikal may not be hinting this, but we are our brains and there is much in this Rube Goldberg contraption that can throw us off.