SCHIZOPHRENIA Flashcards
(14 cards)
What is schizophrenia?
A severe mental disorder, characterised by profound distrubtion in thinking, affecting language, perception and the sense of self
Who did the first formal description of symptoms of schizophrenia?
Emil kraepelin
What did eugene bluer do?
First used term schizophrenia
Schizophrenia: splitting (schizo) of the mind (phrenia)
Negative problems with schizophrenia?
Avolition
Anhedonia
Associality
Characterised by a reduction in normal behaviour
Whats the cognitive problems with schizophrenia?
Disturbances of attention, memory and executive cognitive function
Characterised by changes in memory, attention and executive function
Positive problems with schizophrenia?
Hallucinations
Delusions
Thought derailment
Characterised by behaviours over and above normal behaviours
Whats the diagnosis for schizophrenia in the us called?
Diagnostic and stastical manual DMS
Whats the diagnosis of schizophrenia in Europe?
International classifications of diseases ICD
Phenomenology of schizophrenia?
Symptomatology differs greatly between patients
Sympatomatology in individual patietns show periodic fluctuations
Whats the prevalence rate for schizophrenia?
Approximately 0.5% - 5 per 1000 people surveyed per year
Peak onset in late adolescence and early adulthood 20-39 years
Evidence suggests that genetic, biological and social aspects are important in determining schizophrenia onset
Evidence of genetic influence?
- patients and siblings of sufferers 10 times more likely
- children of sufferers 15 times more likely
- concordance rate in identical twins - 40-50%
- concordance rate in fraternal twins - 5-10%
- entirely genetic: concordance rates in twin would be identical 100% and fraternal 50%
Therefore there is a strong genetic component, but it is not entirely genetically determined
Whats the exclusion criteria?
Mood disorder, drug taking , neurological conditions
Environmental factor affecting schizophrenia?
Biological factors
• Prenatal exposure to viruses (2nd trimester of pregnancy)
• high incidence in people born after major ‘flu epidemics
• high incidence in people born in the spring
Pregnancy and delivery complications
• high incidence in people who had forceps deliveries
Social factors
- life experiences
- family relationships, upbringing
May trigger the diseasein people with a genetic predisposition
ORGINS of schizophrenia?
Genetic biological and upbringing