Diathesis-stress

• what does NO TWIN STUDY have?

  100% concordance SO genes alone do not cause OCD
• What do individuals inherit?

  a genetic vulnerability or genetic predisposition to OCD that has to be triggered by the environment to suffer with OCD

  this explanation is known as the DIATHESIS-STRESS MODEL
• What is one strenght of the diathesis-stress model?

  holistic
• what is this disposition in the case of the diathesis-stress model?

  a factor that makes it more likely that an individual will develop a disorder following a stressful life event
• give the diathesis stress model>?

  DIATHESIS + STRESS --> DEVELOPMENT OF THE DISORDER

  A predisposition or vulnerability: inherited predisposition to inherit the disorder + environmental factors --> psychological disorder
• the stronger the DIATHESIS......?

  ........the less stress is necessary to produce the disorder
• what are examples of stress (environmental factors)?

  • prenatal trauma
  • childhood sexual or physical abuse
  • family conflict
  • significant life changes
• what does diathesis refer to?

  a predisposition or vulnerability to developing a mental disorder. this can be due to genetic factors, early life experiences or other biological susceptibilities
• what does stress refer to?

  the environmental factors that trigger the onset of mental illness or exacerbate existing conditions. these can include significant life events, trauma and daily stressors
• what does the model suggest?

  you are born with a genetic vulnerability to a disorder which will only be expressed if triggered by the environment
• what approach is it to explaining behaviour?

  an interactions approach to explaining behaviour
• what is unlikely?

  that ONE gene causes ocd
• what did TAYLOR suggest?

  it is unlikely that ONE gene causes OCD, it is POLYGENIC - 230 genes may be involved (taylor)