The Dopamine Hypothesis of Schizophrenia





The purpose of this website is to provide information about the dopamine-hypothesis of schizophrenia.   Although there is no one cause for schizophrenia, this hypothesis appears to have validity as a possible cause.  We will walk you through the basic brain systems and chemicals that are affected by schizophrenia, some historical information, treatments of the disease, and relavent scientific research providing support for this theory.  The research is based on amphetamine models of psychosis as they relate to schizophrenia and its symptoms.



The dopamine hypothesis is drawn from the idea of possible overactivity of the neurotransmitter, dopamine, and the systems it is involved in.   It is believed that the positive symptoms of schizophrenia arise from this overactivity.  Amphetamine use induces dopamine overactivity, which can result in similar psychotic symptoms.  We hope that after perusing through our site, you will have a better understanding of schizophrenia, but more importantly how amphetamine abuse provides evidence for the dopamine hypothesis of schizophrenia. 


Anatomy and Physiology of Psychosis
Background Info of Schizophrenia
History of Schizophrenia
Treatment of Schizophrenia
Amphetamines
Dopamine Hypothesis Imaging Studies




Macalester College
Psychology Department
Behavioral Neuroscience

Created by:  Steve Derrington,Craig Moodie, Carolina Munoz-Proto, Josh Ortiz, Anava Wren
 This page was last updated on May 11th, 2004. 
If you have any questions or comments about this webpage, please email Eric Wiertelak.





Pictures contained in this page courtesy of
www.art.net/Studios/Sculptors/ Arabella/hpg2.htm