Schizophrenia Spectrum and Other Psychotic Disorders - Ch. 15 Flashcards
4 phases of schizophrenia behavior
Phase 1 - Premorbid phase
Phase 2 - Prodromal phase
Phase 3 - Schizophrenia
Phase 4 - Residual phase
Phase 1 - Premorbid phase
- Social maladjustment
- Antagonistic thoughts and behavior
- Shy and withdrawn
- Poor peer relationships
- Doing poorly in school
- Antisocial behavior
Phase 2 - Prodromal phase
- Lasts from a few weeks to a few years
- Deterioration in role functioning and social withdrawal
- Substantial functional impairment
- Sleep disturbance, anxiety, irritability
- Depressed mood, poor concentration, fatigue
- Perceptual abnormalities, ideas of reference, and
suspiciousness herald onset of psychosis
Phase 3 - Schizophrenia
- In the active phase of the disorder, psychotic symptoms are prevalent
- Delusions
- Hallucinations
- Impairment in work, social relations, and self-care
Phase 4 - Residual phase
Symptoms similar to prodromal phase.
Flat affect and impairment in role functioning are prominent.
Prognosis of schizophrenia
A return to full premorbid functioning is not common.
Factors associated with a positive prognosis include:
Good premorbid functioning
Later age at onset
Female gender
Abrupt onset precipitated by a stressful event
Associated mood disturbance
Brief duration of active-phase symptoms
Minimal residual symptoms
Absence of structural brain abnormalities
Normal neurological functioning
Family history of mood disorder
No family history of schizophrenia
Predisposing factors of schizophrenia: Biological Influences
Biological influences:
- Genetics: genetics plays an important role in the development of schizophrenia.
- Biochemical influences: One theory suggests that schizophrenia may be caused by an excess of dopamine activity in the brain. Abnormalities in other neurotransmitters have also been suggested.
- Physiological influences: Viral infection, Anatomical abnormalities, Electrophysiology, Epilepsy, Huntington’s Disease, Birth trauma, Head injury in adulthood, Alcohol abuse, Cerebral tumor, Cerebrovascular accident, Systemic lupus erythematosus
Predisposing factors of schizophrenia: Psychological Influences
NONE MOTHERFUCKER - These theories no longer hold credibility. Researchers now focus their studies of schizophrenia as a BRAIN DISORDER.
Psychosocial theories probably developed early on out of
a lack of information related to a biological connection.
Predisposing factors of schizophrenia: Enviromental Influences
Sociocultural factors: Poverty has been linked with the
development of schizophrenia.
Downward drift hypothesis: Poor social conditions seen as consequence of, rather than a cause of schizophrenia.
Stressful life events may be associated with
exacerbation of schizophrenic symptoms and increased
rates of relapse.
Studies of genetic vulnerability for schizophrenia have
linked certain genes to increased risk for psychosis and
particularly for adolescents who use cannabinoids.
Predisposing factors of schizophrenia: Theoretical integration
Schizophrenia is most likely a biologically based disease, the onset of which is influenced by factors in the internal or external environment.
Delusion disorder: definition and types
The existence of prominent, nonbizarre delusions.
Erotomanic type
Grandiose type
Jealous type
Persecutory type
Somatic type
Mixed type
Brief psychotic disorder: definition
Sudden onset of symptoms
May or may not be preceded by a severe
psychosocial stressor
Lasts less than 1 month.
Return to full premorbid level of functioning.
Substance-induced psychotic disorder: definition
The presence of prominent hallucinations and
delusions that are judged to be directly attributable to
substance intoxication or withdrawal
Psychotic disorder associated with another medical condition: definition
Prominent hallucinations and delusions are directly attributable to a general medical condition.
The catatonic features specifier
Catatonic features may be associated with other psychotic disorders, such as brief psychotic disorder, schizophreniform disorder, schizophrenia, schizoaffective disorder, and substance-induced psychotic disorder.