I.  Criteria

        A. Deviant

        B. Distressful

        C. Dysfunctional

II. History

        A. Possession

        B. Medical Model

                1.  Diagnostic and Statistical Manual, 4th edition  (DSM-IV)

        C. Biopsychosocial Perspective

III. Disorders

        A. Schizophrenia

                1. Symptoms

                        a. Disorganized thinking (delusions)

                        b. Disturbed perceptions (hallucinations)

                        c. Inappropriate emotions and actions

                2. Positive vs. negative symptoms

                3. Types of onset
                        a. Acute
                        b. Chronic

                4. What do we know about it?

                        a. Brain
                            1) Dopamine
                            2) Enlarged ventricles
                            3) Fetal virus  
                            4) Oxygen deprivation at birth               

                        b. Genetic factors
                            1) Genetic risk
                            2) Age of father

                        c. Psychological factors
                            1) Stress

                5. Treatment

a. Anti-psychotic drugs

        B. Anxiety Disorders

                1. Phobias

                        a. Causes
                                1.) Learning

                                2.) Biology

                        b. Treatment
                                1.) Systematic desensitization                                           

                                2.) Implosion/flooding

                                3.) Virtual reality

                                            Scientific American Frontiers: Virtual Fear
                                            Scientific American Frontiers: Spiders!

                2. Obsessive-Compulsive Disorder

                        a. Symptoms

                        b. Causes

                        c. Treatment

                            1.) Cognitive-behavioral therapy
                            2.) SSRIs
                            3. ) Psychosurgery