This article is from the Psychology FAQ, by Rolf Marvin Bøe Lindgren roffe@tag.uio.no with numerous contributions by others.
While the contributors to the psychology newsgroups are, in general,
expected be familiar with these terms, questions now and again relate
to their meaning, diagnosis, cause and cure. In the following, I
attempt to present a brief overview. Please refer to the alt.*
hierarchy for specific questions.
 
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