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Psychology (294)
01:830:340 (46)
Chapter 12


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Rutgers University
Sara Campbell

Chapter 12: schizophrenia and other psychotic disorders schizophrenia- involved disturbances in thinking (delusions), perception (hallucinations) speech emotions and behavior catatonia- disordered movement involving immobility or excited addiction hebephrenia- silly and immature emotionality characteristic of some types of schiz paranoia- peoples irrational beliefs that they are exceptionally important (delusion of grandeur) or that people are seeking to harm them (delusion of persecution) dementia praecox- latin meaning premature loss of the mind an early label for schiz developed by kraepelin emphasizes frequency seen in children split mind- schizophrenia was introduced by bleuler associative splitting- separations among human personality such as emotion cognition and perception, cannot keep a contrant train of thought CLINICAL DESCRIPTION SYMPTOMS AND SUBTYPES psychotic behavior- severe psychological disorder category characterized by hallucinations and loss of contact with reality, people are often portrayed as very violent but are actually less likely to commit violent act then someone with a personality disorder or substance abuse I. positive symptoms- delusions and hallucinations A. delusions- disorder of thought content and misinterpretation of reality “basic characteristic of madness” ■ delusion of grandeur ■ delusion of persecution ■ capgras syndrome- person believes someone they know has been replaced by a double ■ cotard’s syndrome- person believes they are dead ■ motivational view of delusions- belief that delusions are used as an attempt to relieve anxiety or stress ■ deficit view of delusion- brain dysfunction results in disordered thinking and perception B. hallucinations- experience of a sensory event without any input from the surrounding environment ■ auditory are the most common ■ metacognition- examining your own thoughts or thinking about thinking ■ SPECT used to examine ■ area of the brain most active is the Broca’s area- surprising because this area is involved in speech production not speech comprehension (wernicke's) ○ supports the idea that people are NOT hearing the voice of others but are hearing their own voice but cannot interpret it II. negative symptoms- absence or insufficiency of normal behavior (25% or people with schiz display negative symptoms) A. avolition- inability to initiate and persist in activities (apathy) ■ show little interest in performing daily functions such as hygiene B. alogia- absence of speech appear uninterested in conversation and respond little ■ believed to reflect negative thought disorder not lack of communication skills C. anhedonia- lack of ability to experience pleasure ■ also appears in mood disorders D. affective flattening- do not show emotion when you normally expect them to ( may be responding on the inside even though dont show it) ■ study showed that people with this who were shown a comedy show demonstrated no emotion although they reported experiencing emotion *difficulty expressing emotion not lack of feeling III. disorganized symptoms A. disorganized speech- incoherence and lack of typical logical problems (cognitive slippage) ■ lack insight and awareness that they have a problem B. inappropriate affect and disorganized behavior ■ inappropriate affect- emotion displayed that is improper for the situation ■ catatonic immobility- hold unusual postures as if they are afraid something will happen if they move IV. a person must display two positive negative or disorganized symptoms for at least two months to be diagnosed V. subtypes A. paranoid subtype- symptoms primarily involve delusions or hallucinations cognitive skills and effect are relatively intact ■ better prognosis than other types B. disorganized type- show marked disruption in their speech and behavior ■ are flat and inappropriate ■ if delusions are present they are not org
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