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Lecture

Psychotic Disorders

7 Pages
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Department
Psychology
Course Code
PSY240H1
Professor
S.Cassin

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Lecture 8 22:25
Psychotic Disorders
Symptoms: alterations in perceptions, thoughts, or consciousness.
DSM-IV Categories:
Schizophrenia
Schizophreniform disorder
Schizoaffective disorder
Delusional disorder
Brief psychotic disorder
Shared psychotic disorder
Psychotic disorder due to general medical condition
Psychotic disorder due to substance abuse
History of Schizophrenia
Kraeplin: “dementia praecox” means early onset intellectual in time. Thought it was a stable and
steady decline.
Bleuler:schizophrenia” means fragmented mind, split mind. Saw heterogeneity in people with
schizophrenia.
Group of schizophrenias refers to heterogeneity of diagnoses.
Schizophrenia Diagnosis:
Two or more of the following, each present for a significant portion of time during a 1-month
period:
Delusions
Hallucinations
Disorganized Speech
Grossly disorganized or catatonic behaviour
Negative symptoms (lack of things)
Note: only 1 symptom is required in certain circumstances (bizarre delusions, multiple voices
conversing, running commentary).
Must cause significant dysfunction.
Must last more than 6 months (acute symptoms + residual symptoms).
Prevalence: 1%, especially in people with lower socio-economic status. Age of onset: about 10
years early in males, 15-24 years. For women, from about 25-34. Male symptoms, on average, are
more severe. Estrogen may be a protective factor in the development of schizophrenia. High
suicide rate: 10%.
www.notesolution.com
Positive Symptoms
Excess or distortion of normal functions and are usually present in the early stages of
schizophrenia. Gain of a maladaptive function.
Two dimensions:
Psychotic: delusions, hallucinations
Disorganized: thought/speech, behaviour
Delusions:
Positive symptoms
Bizarre vs. non-bizarre
Persecutory (they are being followed, spied on, etc. Mostly non-bizarre, in theory could be true.)
Referential (believes gestures, comments, books, directed at them specifically etc. Sending
messages.)
Grandiose (special powers, special relationships to celebrities, etc)
Somatic (bodily distortion, e.g., someone removed their organs)
Being controlled (their thoughts are being withdrawn, implanted, etc)
Hallucinations:
Positive symptoms
Distortions in perception
Auditory
Visual
Tactile
Somatic
Disorganized Speech:
Positive symptom
Thought to be the most important aspect of schizophrenia
Distortions in thought process
Derailment (person is speaking and jumps from one topic to another very quickly)
Tangentiality (person might sound coherent, but the way they answer questions is completely
unrelated)
Word salad (completely nonsensical talk)
Neologisms (make up new words and throw them into sentences)
Clang associations (speak or answer in rhymes)
Perseveration (repeat words over and over again)
Disorganized Behaviour:
www.notesolution.com

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Description
Lecture 8 22:25 Psychotic Disorders Symptoms: alterations in perceptions, thoughts, or consciousness. DSM-IV Categories: Schizophrenia Schizophreniform disorder Schizoaffective disorder Delusional disorder Brief psychotic disorder Shared psychotic disorder Psychotic disorder due to general medical condition Psychotic disorder due to substance abuse History of Schizophrenia Kraeplin: dementia praecox means early onset intellectual in time. Thought it was a stable and steady decline. Bleuler: schizophrenia means fragmented mind, split mind. Saw heterogeneity in people with schizophrenia. Group of schizophrenias refers to heterogeneity of diagnoses. Schizophrenia Diagnosis: Two or more of the following, each present for a significant portion of time during a 1-month period: Delusions Hallucinations Disorganized Speech Grossly disorganized or catatonic behaviour Negative symptoms (lack of things) Note: only 1 symptom is required in certain circumstances (bizarre delusions, multiple voices conversing, running commentary). Must cause significant dysfunction. Must last more than 6 months (acute symptoms + residual symptoms). Prevalence: 1%, especially in people with lower socio-economic status. Age of onset: about 10 years early in males, 15-24 years. For women, from about 25-34. Male symptoms, on average, are more severe. Estrogen may be a protective factor in the development of schizophrenia. High suicide rate: 10%. www.notesolution.com
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