Science Dictionary
schizophrenia   (skĭt'sə-frē'nē-ə, skĭt'sə-)  Pronunciation Key 
Any of a group of psychiatric disorders characterized by withdrawal from reality, illogical patterns of thinking, delusions, hallucinations, and psychotic behavior. Schizophrenia is associated with an imbalance of the neurotransmitter dopamine in the brain and may have an underlying genetic cause.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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