Slides in this set

Slide 1

Preview of page 1

Schizophrenia…read more

Slide 2

Preview of page 2

Contents page
Definition of schizophrenia and diagnosis-
Issues surrounding classification- 5
Explanations of schiz (biological and
psychological)- 7
Therapies- 11…read more

Slide 3

Preview of page 3

What is schizophrenia?
Schizophrenia is a disorder that involves
both positive [additional behaviours-
disorganised speech] and negative
symptoms [loss of behaviour- social
DSM IV was published by the American
Psychiatric Association IN 1994whereas
the ICD-10 was published by World
Health organisation in 1992…read more

Slide 4

Preview of page 4

According to DSM-IV, 3 characteristics must be
present in order for someone to be diagnosed:
1. Characteristic symptoms: Delusions,
Hallucinations, Disorganized speech must be
present for 1 month.
2. Social dysfunction
3. Significant duration: signs for at least 6 months
According to the ICD-10, symptoms have to persit
for a month…read more

Slide 5

Preview of page 5

Issues surrounding classification
and diagnosis of schizophrenia
Reliability- Whaley found that inter-rater
reliability correlations in the diagnosis of
schizophrenia as low as 0.11.//Rosenhan
found that 8 `normal' people could get
themselves admitted to mental hospitals
claiming to hear voices. Staff suspected 41
out of 193 genuine patients as being fakes.
//Copeland gave a description of a patient
to 134 US psychiatrists and 194 British
psychiatrists. 69% of US psychiatrists
diagnosed schizophrenia, but only 2% of
British psychiatrists gave same diagnosis…read more

Slide 6

Preview of page 6

Validity- Schneider listed psychotic symptoms
that he believed distinguished schizophrenia from
other psychotic disorders however some of the
schz symptoms are found in bipolar and
Low predictive validity- Bleu's study. With 2000
schz patients in the study, it was found that 20%
would have a full recovery, 40% would recover
from positive symptoms but 40% wouldn't.…read more

Slide 7

Preview of page 7
Preview of page 7

Slide 8

Preview of page 8
Preview of page 8

Slide 9

Preview of page 9
Preview of page 9

Slide 10

Preview of page 10
Preview of page 10


No comments have yet been made

Similar Psychology resources:

See all Psychology resources »