Schizophrenia

2011

Halucination, delusions, disorganised speech, catatonic behaviour and paranoia

Social occupational dysfunction

Duration

Catatonic, hebephrenic, undifferentiated, residual and paranoid

1/3 will recover completely

1/3 will have episodic impairment (stay the same)

1/3 will undergo chronic decline

They found that 50% of schizophrenic episodes happened when they had a life event 3 weeks prior. whereas 12% did 9 weeks prior.

Hirsch followed 71 Schizophrenic patients over 48 weeks. He found that life events (LE) made a cumulaive contribution in the 12 months preceding relapse rather than a more concentrated effect in period just prior to schizophrenic episode.

He found out about the double bind theory. children who get contradictory messages from their parents are more likely to develop schizophrenia. prolonged exposure can lead to incoherent construction of reality. In the long run this can lead to SZ symptoms such as delusions and hallucinations.

He said that schizophrenics with families with high levels of expressed emotions are 4 times more likely to relapse.

support

Diathesis stress model

Ability to repeat the test time and time again and still get the same/similar results

Does the test measure what it claims to measure?

80% and over

subjective interpretation and the number of subtypes

4

Low ecological validity

Low temporal validity

154

8