Unique form of PTSD impacting genetics from Childhood Trauma. Your Thoughts?

Twin studies contribute to our understanding of the genetic etiology of PTSD in the following ways:
–Genetic factors influence exposure to a potentially traumatic event
–Genetic influences explain a substantial proportion of vulnerability to PTSD even after accounting for genetic influences on trauma exposure
–Genetic influences on PTSD overlap with those for other mental disorders.
–Provide important information regarding possible biological “endophenotypes,” or intervening phenotypes

Is distress learned (psychological response) or passed on genetically?
– Learned behavior
– Family functioning
– Biological perspectives

Do children of parents diagnosed with PTSD experience problems with family functioning?
 Several studies have examined family functioning. Findings have suggested that parents diagnosed with PTSD impact family functioning negatively.