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What are the 5 core symptoms of schizophrenia?
Delusions, hallucinations, disorganized speech, disorganzid/catatonic behavior, negative symptoms.
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What are the symptoms of the negative cluster?
absence or insufficiency of normal behavior, avolition (apathy), alogia(absence of speech), anhedonia (lack of pleasure), affective flattening.
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Describe Paranoid schizophrenia
Halluications and delusions (grandeur or persecution), best prognosis
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Describe disorganized schizophrenia.
disruptions in speech and behavior, flat or inappropriate affect, hallucinations and delusions(tend to be fragmented), develops early, chronic, lacks remission
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Describe Catatonic schizophrenia
unusual motor respones and odd mannerisms, echolalia, echopraxia
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Describe undifferentiated schizophrenia
have major symptoms, but don't fit into a particular category.
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Describe residual type of schizophrenia
display leftover symptoms like social withdrawal, bizarre thoughts, inactivity, and flat affect
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Describe Schizophreniform disorder
schizophrenic symptoms for a few months, return to normal life
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Describe schizoaffective disorder.
symptoms of schizophrenia and a mood disorder
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Delusional disorder
have delusions contrary to reality. lack other pos and neg symptoms, very rare! prognosis is better than schizophrenia
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what are the types of delusions
erotomatic, grandiose, jealousy, persecutory, somatic
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brief psychotic disorder
1 or more schizo symptoms lasting less than a month
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What is the dopamine hypothesis?
- Agonists- increase dopamine-cause schizophrenic behavior
- antagonist vise versa
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What are some possible neurobiological influences of schizophrenia?
enlarged ventricles and reduced tissue volume, hypofrontality or less actice frontal lobes(major dopamine pathway), viral infections during early prenatal development
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What is the onset and prevalence of schizophrenia?
- about .2% to 1.5%, often develops in early adulthood but can develop at any time.
- chronic with lower life expectancy
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