Interactionalist approach to SZ

• What is the interactionalist approach to SZ


  Recognises multiple factors influecing SZ like biological + psychological
• What is the diathesis stress model as part of the interactionalist appraoch to SZ


  DIATHESIS= genetic and underlying factors affecting vunerability

  Stress= negative psychological experience

  Both needed to develop SZ
• what is the original model of diathesis stress for the interactionalist appraoch to SZ


  diathesis is all genetic with one single schizogene which develops schizotypic personality: more sensitive to stress

  SZ when gene experiences stress
• what is the modern model of diathesis stress model for the interactionalist appraoch to SZ


  SZ is polygenic, diathesis not just genertic but also early trauma

  e.g. trauma makes fight flight over active > more vunerable to stress > with enough stress SZ develops
• what is the modern understanding of stress in the interactionalist appraoch to SZ


  anything that risks triggering SZ

  E.g. cannabis can disrupt dopamine activity
• what are the implications for treatment for the interactionalist appraoch to SZ


  using more than one method like drug and psychological therapy

  in the Uk we use CBT and drugs but USA use drugs
• One negative of the interactionalist appraoch to SZ


  Original model oversimplified = idea only one schizogene is wrong as we know SZ is aeteologically heterogenous with diff combinations of genes > ripke found 108 genetic variations

  Suggests modern version more valid
• one strength of the interactionalist appraoch to SZ


  supporting evidence for DSM= Tienari compared adopted children whose mother had SZ with control group, assessed parenting of adoptive parents and found risk of SZ higher when combination of genetic risk and conflict in home
• one strength of the interactionalist appraoch to SZ


  anderson studied relapse rates of groups: 40% only drugs, 20% only therapy, less than 5% when both

  shows interaction is superior