module 29
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Module 29. Dissociative Disorders Schizophrenia Personality Disorders. Dissociative Disorders. Disorders in which the sense of self become separated (dissociated) from previous thoughts, memories or feelings. Dissociative Amnesia. - PowerPoint PPT PresentationTRANSCRIPT
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Module 29
• Dissociative Disorders• Schizophrenia• Personality Disorders
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Dissociative Disorders
• Disorders in which the sense of self become separated (dissociated) from previous thoughts, memories or feelings
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Dissociative Amnesia
• Characterized by the loss of memory in reaction to a traumatic event
• Psychologists now think that this is what Freud mislabeled as repression (do not remember an event b/c it is too emotionally painful – like child sexual abuse)
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Dissociative Fugue
• Characterized by loss of identity and travel to a new location
• Time- hours, days, weeks , months, years• Caused by extreme stress
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Dissociative Identity Disorder
• Rare and controversial dissociative disorder in which an individual experiences two or more distinct and alternate personalities
• Used to be called multiple personalities
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Schizophrenia Disorders
Module 29: Dissociative, Schizophrenia, and Personality Disorders
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Schizophrenia
• A group of severe disorders characterized by disorganized and delusional thinking, disturbed perceptions, and inappropriate emotions and actions
• Is not one disorder but a family of disorders• Is not “split personality”• Occurs in about 1% of the population
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Schizophrenia Disorders:
Symptoms of Schizophrenia
Module 29: Dissociative, Schizophrenia, and Personality Disorders
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Symptoms of Schizophrenia
• Symptoms of schizophrenia include:–Delusions (false beliefs)–Hallucinations (false perceptions)–Inappropriate emotions or behaviors
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Delusions
• False beliefs of schizophrenia and other serious psychological disorders
• Four major types of delusions:–Grandeur–Persecution–Sin or guilt–Influence
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Delusions of Grandeur
• False beliefs that a person is more important than they really are
• Patients may believe they are a famous person (e.g. Napoleon, Jesus)
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Delusions of Persecution
• False beliefs that people are “out to get” the person
• Believe they are being followed, the phone is wiretapped, being followed, etc.
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Delusions of Sin or Guilt
• False beliefs that the person is responsible for some misfortune
• Ex. I didn’t do the crossword puzzle today and it caused a plane to crash.
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Delusions of Influence
• False beliefs of being controlled by outside forces
• “Devil made me do it.”
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Hallucinations
• False perceptions of schizophrenia or other serious psychological disorders
• Types of hallucinations:–* Auditory (hearing voices)–Visual (seeing things)–Tactile (feeling skin sensations)
• Can also have distorted smell and taste
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Inappropriate Emotions/Behaviors
• Flat affect – showing little or no emotional response
• Emotional opposite - laugh at a funeral• Word salad – nonsense talk• Waxy flexibility – the person’s arms and
legs will remain in place after being moved there
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Schizophrenia Disorders:Types of
Schizophrenia
Module 29: Dissociative, Schizophrenia, and Personality Disorders
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Paranoid Schizophrenia
• Characterized by delusions, especially grandeur and persecution. Auditory and other hallucinations support the delusions.
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Catatonic Schizophrenia
• Characterized by variations in voluntary movement
• Catatonic excitement – rapid movements with delusions and hallucinations
• Catatonic stupor – little or no activity, movement, or speech (waxy flexibility)
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Disorganized Schizophrenia
• Characterized by bizarre behavior, delusions, and hallucinations.
• Very disturbed thought and language (word salad)
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Undifferentiated Schizophrenia
• Symptoms that don’t clearly fit into one of the other types of schizophrenia but still show clear symptoms of schizophrenia
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Schizophrenia Disorders:
Causes
Module 29: Dissociative, Schizophrenia, and Personality Disorders
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Biological Factors - Genetics
• Schizophrenia tends to run in families.• Genetics appears to produce a
predisposition (increased likelihood) to develop schizophrenia.
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Biological Factors – Brain Structure
• Brain structure of those with schizophrenia is different than the normal brain
• Those with schizophrenia have smaller amounts of brain tissue and larger fluid filled spaces.
• The thalamus is smaller in those with schizophrenia.
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Biological Factors – Brain Function
• The brain of those with schizophrenia operates differently than the normal brain.
• The frontal lobes show less activity.• Those with schizophrenia have a larger
number of receptor sites for the neurotransmitter dopamine.
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Biological Factors – Prenatal Viruses
• A viral infection during the middle of pregnancy may increase schizophrenia risk.
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Psychological Factors
• Two main areas:–Stress–Disturbed family
–It’s unclear whether these are causes or consequences of schizophrenia.
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Personality disorders
• Characterized by inflexible and lasting behavior patterns that disrupt social functioning
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Related to anxiety
• Avoidant personality disorder – afraid of being rejected in a social relationship – therefore, thed to avoid them
• Dependent personality disorder – clinging, needed, submissive
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Related to odd / eccentric behaviors
• Paranoid personality disorder – deep mistrust of others – problem with relationships
• Schizoid personality disorder – detached from social relationships – “loner” – a hermit
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Personality disorders with dramatic or impulsive behaviors• Borderline personality disorder- unstable
emotions, self-image, behavior and relationships
• Antisocial personality disorder (sociopath)- usually a man, shows a lack of conscience for wrongdoing and lack of respect for rights of others (Scott Peterson)– Murders– No remorse– Usually clever and charming