Lecture 12: Schizophrenia Flashcards
psychosis
losing contact with reality; not knowing what is real and what is not
2 categories of psychosis
- functional psychosis: psychosis in which there is no apparent pathology of CNS
- non-functional psychosis: psychosis in which there is pathology of CNS
symptoms of psychosis
- positive symptoms: exaggeration or disturbance of normal functions (delusions, hallucinations, formal thought disorders)
- negative symptoms: diminishing of normal functions (social withdrawal, lack of drive)
- cognitive symptoms
- disorganization, affective symptoms
schizophrenia
psychotic disorder, marked by unusual perceptions, disturbed emotions, strange thoughts, and motor dysfunction. more common in low SES groups
downward drift theory
that people who experience schizophrenia descend on the economic ladder
checklist for schizophrenia
- for 1 month, the individual displays two or more of the following symptoms: delusions, hallucinations, disorganized speech, and abnormal motor activity, including catatonia, and negative symptoms
- at least one symptom must be delusions, hallucinations, or disorganized speech
- lower functioning compared to before symptoms emerged
- some degree of impaired functioning for at leat 5 additional months
types of schizophrenia
- type I schizophrenia: having more positive symptoms (more common type)
- type II schizophrenia: having more negative symptoms
brief psychotic disorder
1 or more: delusions, hallucinations, chaotic speech, chaotic or catatonic behavior with a duration of less than 1 month with a full return to functioning
schizophreniform disorder
schizophrenia but duration more than 1 and less than 6 months
schizoaffective disorder
6 months or more wherein criteria of mood disorder and schizophrenia are met, and period with only delusions/hallucinations
delusional disorder
delusion more than a month, functioning not impaired and behavior not obviously bizarre
3 types of delusional disorder
- erotomatic type: belief that another person of higher status is in love with them
- persecutory type: belief that they are being mistreated, or someone is spying on them or planning to harm them
- somatic type: false belief that a person’s internal or external bodily functions are abnormal
psychotic disorder due to another medical condition
hallucinations, delusions or disorganized speech caused by a medical illness or brain damage
substance/medication-induced psychotic disorder
hallucinations, delusions, or disorganized speech caused directly by a substance
other psychotic disorders in DSM-5
- persistent auditory hallucinations syndrome
- delusions with significant overlapping mood episodes
- attenuated psychosis syndrome
- delusional symptoms in the partner of an individual with delusional disorder
positive symptoms
excesses of thoughts, emotions, and behaviors; the healthy person does not have them
delusions
strange false beliefs firmly held despite evidence of the contrary
delusions of persecutions
believe they are being plotted against
delusions of reference
attach special meaning to actions of others or to various objects or events
delusions of grandeur
believe to be specially empowered persons
delusions of control
believe feelings, thoughts and actions are controlled by others
formal thoughts disorders
disturbance in production and organization of thought
lose associations/derailment
quicky shifts from one topic to another
neologisms
made-up words
perservation
repeating words and statements again and again
clang
rhyme to think or express themselves
heightened perceptions and hallucinations
perceptions in absence of actual external stimuli
tactile hallucinations
take the form of tingling, burning sensations or sensations of electric shock