Textbook note-Chapter 11-Schizophrenia Mar 25

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16 Aug 2010
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PSY240: March 25th
Chapter 11: Schizophrenia
Schizophrenia
๎€ psychosis: if you are unable to tell the difference b/w what is real and what is unreal
๎€ age of onset: late teens ยฑ early adult
๎€ later onset for women
๎€ women also show fewer cognitive deficits especially in verbal processing
๎€ lifelong disorder
๎€ DSM criteria pg. 378 table 11.1
๎€ 1-2% prevalence rate
Symptoms
๎€ positive/type 1 symptoms (refer to the presence of salient experiences
๎€ negative/type 2 symptoms (refer to the absence of certain domains)
Positive Symptoms
๎€ delusions
๎€ ideas that an individual believes are true but are highly unlikely and often simple impossible
๎€ persecutory delusion
๎€ ppl. believe they are being watched/tormented by ppl they know
๎€ delusion of reference
๎€ random events or comments by others are directed at them
๎€ grandiose delusions
๎€ one is a special person or being or possess special powers
๎€ delusion of thought insertion
๎€ belief one's thoughts are being controlled by outside forces
๎€ Hallucinations
๎€ unreal perceptual experiences
๎€ auditory hallucination
๎€ hearing voices, music etc.
๎€ most common
๎€ visual hallucinations
๎€ tactile hallucination
๎€ perception that something is happening outside one's own body
๎€ ex. bugs crawling up one's back
๎€ somatic hallucination
๎€ perception that something is happening inside one's own body
๎€ ex. worms eating one's intestines
๎€ Disorganized thoughts and speech
๎€ aka. formal thought disorder
๎€ tendency to slip from one topic to another with little coherent transition
๎€ neologisms: making up words which are only meaningful to the maker
๎€ deficits in smooth eye movement and working memory
๎€ Disorganized or Catatonic Behaviour
๎€ unpredictable and apparent untriggered agitation
๎€ engage in socially unacceptable acts
Negative Symptoms
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Document Summary

Symptoms positive/type 1 symptoms (refer to the presence of salient experiences negative/type 2 symptoms (refer to the absence of certain domains) Disorganized thoughts and speech aka. formal thought disorder tendency to slip from one topic to another with little coherent transition neologisms: making up words which are only meaningful to the maker deficits in smooth eye movement and working memory. Disorganized or catatonic behaviour unpredictable and apparent untriggered agitation engage in socially unacceptable acts. Affective flattening severe reduction / complete absence of emotional responses to the environment but they still experience the emotion (ie. physiological arousal) Alogia poverty of speech, or reduction is speaking. Avolition inability to persist at common goal-directed activities, including those at work, school, and home. Other symptoms anhedonia inappropriate affect impaired social skills more due to negative symptoms than positive symptoms. Paranoid schizophrenia prominent delusions and hallucinations that involve themes of persecution and grandiosity better prognosis than other types.

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