See the two earlier blog posts - "Therapeutic writing & speaking: inspiration from values (background information)" and "...
Here are seven recent research studies - largely about the effects of early life adversity on adult psychological health (although I've slipped in one I find important on the prevalence & effects of subsyndromal/subclinical symptoms). The last two papers touch on the truth or falsity of Nietsche's famous saying ...
I first came across Professor Antonio Damasio's work in 2001 at the "7th European Conference on Traumatic Stress" in Edinburgh. One of the main plenary speakers talked about Damasio's ideas as expressed in his earlier books ...