- Stress Diathesis Model
- Diathesis is a predisposition or vulnerability to mental disorder through abnormality of the brain or neuro-transmitters.
- The model help to explain how stress caused by life events (nurture) can interact with an individual's genetic vulnerability (nature) to impact on their mental wellbeing.
- Some people are born with biological or genetic pre-dispositions (tendencies) to mental illness.
- High levels of stress and trauma can trigger the onset of psychological disorders for those who have pre-dispositions.
- Psychosis, depression, schizophrenia and phobia's can be triggered by stress, anxiety, death, abuse, trauma or drug taking.
- However, some people with genetic pre-dispositions may never develop any disorders if they do not experience any triggers.
- Only if the combination of the pre-disposition and stress exceeds a threshold will the person develop a disorder.