Interactionist explanation + Evaluation

What is the interactionist approach also known as?

the biosocial approach

Biosocial approach

suggests that a range of factors, including biological and psychological, are involved in the development of SZ

diathesis

vulnerability

stress

trigger

diathesis stress model

a diagnostic model proposing that a disorder may develop when an underlying vulnerability is coupled with a triggering event

meehl's model 1962

diathesis = schizogene, vulnerability = schizophrenogenjc mother

Schizogene causes ... personality.

schizotypic

schizotypic personality

someone who is particularly sensitive to stress

Tienari et al (2004)

• investigated 19,000 adoptees over years

• positive correlation between high risk & high conflictual adoptive families for development of schizophrenia (34%)

• low correlation between low risk & conflictual adoptive families (8%)

Correlation vs causation

correlation does not equal causation

practical application

drug therapies

Real life application

explains why not all genetically vulnerable people develop schizophrenia

Housten et al

• surveys, 543 reported childhood sexual trauma, 643 reported cannabis before 16

• diathesis = trauma stress = cannabis