7.psychosis

7.psychosis - 10/20/10 Schizophrenia Dr. Fred Rose Nature...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
10/20/10 1 Schizophrenia Dr. Fred Rose Nature of Schizophrenia and Psychosis: An Overview Schizophrenia vs. Psychosis Psychosis – Cluster of disorders; hallucinations and/or loss of contact with reality Schizophrenia – A type of psychosis Affects 1 in 100 persons, $65 Billion annually Historical Background Emil Kraeplin – 1896; Used the term dementia praecox, focused on onset and outcomes Eugene Bleuler – 1911 he introduced the term “schizophrenia” or “splitting of the mind” Prevalence of Schizophrenia Prevalence of 1% worldwide 2 × Alzheimer’s 5 × Multiple Sclerosis 6 × Insulin-dependent Diabetes 60 × Muscular Dystrophy Schizophrenia Is Generally Chronic Moderate-to-severe lifelong impairment Life expectancy is slightly less than average Equal Gender Distribution Women - better long-term prognosis Onset differs between men and women
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
10/20/10 2 Gender differences in onset of schizophrenia in a sample of 470 patients Howard et al., 1993 Diagnosis: DSM IV Symptoms (2 or more): Delusions (content) Hallucinations Disorganized speech (form) Disorganized or catatonic behavior Negative symptoms (Fat affect etc.) Social/Occupational Dysfunction Duration: 6-months (1 month of symptoms) Not caused by substances Not Schizoaffective/Mood Disorder The “Positive” Symptoms Active manifestations of abnormal behavior or distortions of normal behavior Delusions - 90% Somatic: “Snake living inside my abdomen” Grandeur: “Chosen by God” Persecution: “ ‘They’ are monitoring me” Manifestations: Thought broadcasting, ideas of reference, thought withdrawal
Background image of page 2
10/20/10 3 The “Positive” Symptom Cluster Hallucinations Sensory events without environmental input Auditory are the most common (can be any sensory modality) Normal volume, known, external, negative Speech vs. auditory processing studies Some major language areas of the cerebral cortex The “Negative” Symptom Cluster Absence or insufFciency of normal behavior Spectrum of Negative Symptoms Avolition (or apathy) – Inability to initiate and persist in activities Alogia – A relative absence of speech Anhedonia – Inability to experience pleasure or engage in pleasurable activities ±lat affect – Show little expressed emotion, but may still feel emotion
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
10/20/10 4 “Disorganized” Symptoms Severe and excess disruptions in: Speech Cognitive slippage – Illogical and incoherent speech Tangentiality – “Going off on a tangent” and not answering a question directly Loose associations or derailment – Taking conversation in unrelated directions “Disorganized” Speech “I have also killed my ex-wife, [name], in a 2.5 to 3.0 hours sex bout in Devon Pennsylvania in 1976,
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/15/2010 for the course PSYC PSYC 163 taught by Professor Mickeys,l during the Fall '09 term at UCSD.

Page1 / 16

7.psychosis - 10/20/10 Schizophrenia Dr. Fred Rose Nature...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online