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Lecture16-M50,51

Lecture16-M50,51 - Module'50 Schizophrenia...

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Module 50: Schizophrenia Split from reality and from self Causes of symptoms: Brain: Dopamine Overac0vity Abnormal brain anatomy and ac0vity Maternal virus during pregnancy Associated genes Social<Psychological influences Schizophrenia symptoms: Disorganized Thinking, Delusions Disturbed Percep0ons: Hallucina0ons Unusual Emo0ons and Ac0ons, including flat affect, and catatonia Subtypes Onset and course
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Schizophrenia: the mind is split from reality, e.g. a split from one’s own thoughts so that they appear as hallucina0ons. Psychosis refers to a mental split from reality and ra0onality. Schizophrenia symptoms include: disorganized and/or delusional thinking. disturbed percep0ons. inappropriate emo0ons and ac0ons. Posi;ve + presence of problema0c behaviors Nega;ve @ absence of healthy behaviors Hallucina0ons (illusory percep0ons), especially auditory Delusions (illusory beliefs), especially persecutory Disorganized thought and nonsensical speech Bizarre behaviors Flat affect (no emo0on showing in the face) Reduced social interac0on Anhedonia (no feeling of enjoyment) Avoli0on (less mo0va0on, ini0a0ve, focus on tasks) Alogia (speaking less) Catatonia (moving less) Posi;ve and Nega;ve Symptoms of Schizophrenia
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Schizophrenia Symptoms: Problems in Thinking and Speaking Disorganized speech , including the “word salad” of loosely associated phrases Delusions (illusory beliefs) , oUen bizarre and not just mistaken; most common are delusions of grandeur and of persecu;on Problems with selec;ve aFen;on , difficulty filtering thoughts and choosing which thoughts to believe and to say out loud ? ! ? ! ? ! ? ! People with schizophrenia oUen experience hallucina;ons , that is, perceptual experiences not shared by others. The most common form of hallucina0on is hearing voices that no one else hears, oUen with upseZng (e.g. shaming) content. Hallucina0ons can also be visual, olfactory/smells, tac0le/touch, or gustatory/taste. You’re evil! Am I evil? Schizophrenia Symptoms: Disturbed Percep;ons
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Odd and socially inappropriate responses such as looking bored or amused while hearing of a death Flat affect : facial/body expression is “flat” with no visible emo0onal content Impaired percep0on of emo0ons, including not “reading” others’ inten0ons and feelings Schizophrenia Symptoms: Inappropriate Emo;ons Odd and socially inappropriate behavior can be caused by symptoms such as: errors in social percep0on. disorganized, unfiltered thinking. delusions and hallucina0ons. The schizophrenic body exhibits motor symptoms such as: repe00ve behaviors such as rocking and rubbing. catatonia , such as siZng mo0onless and unresponsive for hours.
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