AO3 Explaining OCD

• AO3 explaining OCD - GENETICE EXPLANATION

  • RESEARCH SUPPORT - Samuels et al found hoarding linked to specific gene in chromosome 14 using gene mapping, OCD has main underlying genetic component, may be triggered by external factors, primarily genetic,
  • COUNTER - Nestadt et al showed 68% of MZ twins would share OCD and only 31% of DZ - MZ should be 100% undermines genetics without congruence with another explanation, also deterministic predisposition to OCD
• Neural explanation for OCD

  • Orbitofrontal cortex hyperactivity in specific brain regions causing OCD - Saxena and Rauch
  • Scientific methods are objective - high validity of theory
• Neuro-imaging findings

  May be result of traumatic injury or even another disorder (Tourette's)
• Causation needs to be carefully considered as what may be inferred to be cause of faulty neural functions may be result of external factor
• The neural explanation for OCD is a reductionist argument that only takes nature into consideration, not nurture