Schizophrenia Flashcards
Name 2 positive symptoms
- Hallucinations
- Dellusions
What are 3 negative symptoms?
- Flattened affect
- Memory and attentional problems
- Social withdrawal
Who were the first to identify the disorder?
- Kraeplin first used term dementia preacox
- Bleuler coined schizophrenia
What did both Kraeplin and Bleuler focus on?
negative symptoms
What symptoms did Kurt Schneider describe?
- Acoustic hallucinations
- Influence of will
- Delusions
What is frontal lobe dysfunction?
- Deficits in organising/connecting thoughts
- Can result in disorganised speech
What is stereotypy?
Repeatedly showing the same motor behaviour
What is catatonia?
Withdrawal and inactivity from social world
Name 4 negative symptoms
- Affective flattening - limited emotional range
- Anhedonia
- Avolition - inability to carry out basic tasks
- Asociality
What are the 3 different periods of onset?
- Acute - early stage shorter than 3 months, delusions/hallucinations appear within days
- Sub-acute - early stage 1month-1year
- Slow/chronic - long early stage of negative symptoms (65% of patients)
How have twin studies shown an interaction between social and genetic factors?
- High rate of concordance in monozygotic twins
- However high-risk children raised in adverse conditions more likely to develop the condition
What is the dopamine hypothesis of schizophrenia?
- amphetamine is a dopamine agonist which can induce psychotic symptoms
- post mortem of schizophrenics shows high levels of dopamine and more dopamine receptors in the limbic system
- antipsychotica drugs reduce positive symptoms
What is the psychodynamic theory of schizophrenia?
- Early childhood trauma from schizophrenic mother
- Cold, distant, rejecting and dominant
What did Brown find with regards to schizophrenic relapse rate?
Dependent on social group after discharge with regards to critique, hostility and overinvolvement
What did Faris and Dunham find?
Higher incidence of schizophrenia in lower income backgrounds (socio-economic factors)
