genetic/biological vulnerabilities (increased sensitivity to pain)
early traumatic experiences
role modeling of the physical sick role
learning non-medical help seeking may be rejected
high deference to medical authorities
equal in men and women
age of onset about 16 years old
stressors can trigger symptoms (early trauma and low support common)
number of alters has increased over time and more bizarre
used by defendants to escape punishment for crimes
real memories of abuse? (repressed memories may be false by leading questions and suggestions)
inclusion of possession more applicable to more people