2.4 Theories of Schz

Question 1

What are the three biolgical theories for schz?

Answer 1

Adoptive studies, Dopamine hypothesis and Neurological

Question 2

What does Heston (1966) show us?

Answer 2

Children of mothers with Schz more prone to psychopathy and neuroticism

Question 3

What is the dopamine hypothesis?

Answer 3

• Schz involves excessive dopamine activity

Question 4

What study showed support for Dopamine hypothesis?

Answer 4

Randrup and Munkuad (1966)
- L dopa study
- rats showed signs of schz
- then gave anti-psychotics and the symptoms lessened

Question 5

What does neurological theory say?

Answer 5

Enlarged ventricles, means brain tissue is less, common in schz

Question 6

What are three psychological theories?

Answer 6

Stress-vulnerability model, Gene-enviroment interaction model, Expressed emotion

Question 7

What is the stress-vulnerability model?

Answer 7

People with schz more vulnerable to stress

Question 8

What is the Horan et al (2006) study?

Answer 8

• reponses to 1994 CA earthquake
• Avoidance highest in people with schz
• coping lowest in people with schz

Question 9

What is the gene-environment interaction model?

Answer 9

• dysfunctional adoptive families positivley correlated with likelihood of developing disorders
• risk more prominent for high risk (biologically)

Question 10

What is expressed emotion? how does it effect schz patients?

Answer 10

• emotions and attributes expressed by relatives towards a family member with schz
• string predictor of relapse

Question 11

What did brown (1972) study show?

Answer 11

patients who lived with high EE relatives had signs of higher relapase rate 9 months after discharge than patients with low EE

Question 12

What is Bipolar Disorder (BPD)

Answer 12

High and low moods which both can be disabling

Question 13

Facts about BPD

Answer 13

• 1% of pop have it
• average onset early 20s
• equal prevelnace in both genders
  -Females get more depression less mania