ch 10 - Schizophrenia Spectrum Other Psychotic Disorders...

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1 Schizophrenia Spectrum & Other Psychotic Disorders 2 DSM-5 Included Disorders Delusional Disorder Brief Psychotic Disorder Schizophrenoform Disorder Schizophrenia Schizoaffective Disorder Substance/Medication Induced Other Medical Condition Induced Catatonia
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2 3 Schizophrenia The hallmark of schizophrenia is psychosis Significant loss of contact with reality Schizophrenia affects people from all walks of life is about as prevalent as epilepsy usually begins in late adolescence or early adulthood 4 Age Distribution of Onset of Schizophrenia
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3 5 Schizophrenia: Findings and Statistics 0.2 - 1.5% lifetime prevalence Equally prevalent among men and women Age of onset is typically in the late teens to mid 20’s (males have an earlier onset) Relapses are common, but return to “normal” is also possible both between episodes and in sustained remission 6 Symptoms of Schizophrenia Two general types Positive symptoms ( not good symptoms) Refers to an excess or distortion in a normal repertoire of behavior and experience Negative symptoms Reflects an absence or deficit of behaviors that are normally present
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4 7 Positive Symptoms: Delusions Beliefs seen by most members of society as a misrepresentation of reality . ...of Persecution ...of Grandeur ...of Reference …of Control Also Thought Insertion and Thought Broadcasting 8 Positive Symptoms: Hallucinations Experiencing sensory input that others do not perceive or when there is no input there in reality Can affect all senses Auditory Visual Olfactory Taste Tactile
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5 9 Positive Symptoms: Hallucinations, cont’d Are patients who are hallucinating really hearing voices?? Brain-imaging of individuals experiencing auditory hallucinations Hypothesis: would see activity in areas related to comprehension RESULTS: Activity in Broca’s area Area responsible for speech production What does this suggest? 10 Positive Symptoms Disorganized Speech or Hearing: Person may be incapable of logic or rational thinking, and may present with bizarre speech Loose Association - Person rapidly moves from one topic to the next. “Loose” implies that there is some at least inconsequential association Derailment - The total lack of association
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