Psychosis Flashcards
(Schizophrenia) (40 cards)
What is psychosis?
A state defined by a loss of contact with reality. The perceive and respond to the environment is significantly disturbed - functioning is impaired.
What are the symptoms of psychosis?
Hallucinations and or delusions. They can be substance induced or caused by brain injury but most psychosis appears in the form of schizophrena.
What socioeconomic group is more likely to have sz? Why could this be the case?
More frequent in lower classes. Stress of poverty is theorised to cause sz. There is also the downward drift theory that posits that SZ causes victims to fall from higher social levels and remain at lower levels
What are the statistics of marital status and sz?
3% of divorced or separated people
2% of single people
1% of married people
Unclear whether marital problems are a cause of a result
Do men and women’s diagnosis differ?
Equal number of men and women are diagnosed , in men symptoms begin earlier and are more severe
What is the link between schizophrenia and ethnicity ?
About 2% of african americans are diagnosed , compared with 1.4% of caucasians . African americans are more likely to be poor and experience marital separation.
When controlling for these factors, rates of schizophrenia are equal for the two racial groups.
What does sz affect?
Brain and behaviour disorder affecting how one thinks, feels and acts. Can have trouble distinguishing reality from fantasy , expressing and managing normal emotions and making decisions. Can have trouble distinguishing reality from fantasy , expressing and managing normal emotions and making decisions.
What are the three types of symptoms?
- negative
- positive
- psychomotor
Briefly list positive symptoms of SZ
Delusions, disordered thinking and speech, heightened perceptions , hallucinations
Briefly list negative symptoms of SZ
poverty of speech , long lapses before responding to questions, slow speech, blunted and flat affect, expressionless face, apathetic, monotonous voice, loss of volition (motivation) , social withdrawal.
Briefly list psychomotor symptoms of SZ
Awkward movements, repeated grimaces, odd gestures , movements seem to have a magical quality, catatonia, stupor, rigidity, excitement
What are the five subtypes of SZ in the DSM-5?
Disorganised, catatonic , paranoid, undifferentiated, residual
What is disorganised SZ?
confusion, incoherence, flate or inappropriate affect
What is catatonic sz?
psychomotor disturbance of some sort
What is paranoid sz?
Orgabnised system of delusions and auditory hallucinations
What is undifferentiated sz?
characterised by symptoms which fit no subtype, vauge category
What is residual sz?
Symptoms which have lessened in strength and number, the person may contibue to display blunted or inappropriate emotions
What are the features of type I schizophrenia?
Dominated by positive symptoms .
- Better adjustment prior to onset of symptoms
- More positive outcome
- Tied to biochemical abnormalities
What are the features of type II schizophrenia?
Dominated by negative symptoms
- Poorer adjustment prior to onset of symptoms
- Earlier onset of symptoms
- Less positive outcomes
- Symptoms tied to structural abnormalities
What is the biological understanding of schizophrenia? Biochemical abnormalities
Biochemical abnormalities
- DOPAMINE may be overactive due to larger than usual number of dopamine receptors
- Autopsy findings have found an unusually large number of dopamine receptors
What is the biological understanding of schizophrenia? abnormal brain structure
Brain scans = large ventricles - more likely to display symptoms of Type II
–> May be a sign of poor development in related brain regions
–> People with SZ have been found to have smaller temporal and frontal lobes and abnormal blood flow to certain brain area
What is the psychological view of schizophrenia? psychodynamic
Freud, sz developed from two processes
= regression to pre-ego stage
= efforts to reestablish ego control
- People regress tp the earliest points in their development in which they only recognise their needs
- Leads to self-centred symptoms such as lddelusions of grandeur
What is the psychological view of schizophrenia? cognitive view
Cognitive theroists agree that biology plays a role
- Due to faulty development due to faulty interpretation and a misunderstanding of symptoms
- Not much research on this
What is the sociocultural view of schizophrenia?
Multicultural factors - african america patients are more likely than white amercians to be assessed as having symptoms and admitted to state hospitals. Could be that african americans are more prone to the development of the disorder . Unintenonally biassed clinicians due to diagnoses of african americans or misreading cultural differences as symptoms
Afican americans more likely to be poor.