My dad is a retired psychiatrist and is still going strong as a writer and jazz musician. His work with veterans and his research played a role in the development of PTSD as a diagnosis. His work as a psychotherapist with a Vietnam Veteran who suffered from multiple personalities, now known as Dissociative Identity Disorder was featured on the television show, 20-20 many years ago. For more info on his book, "The James Tapes," check out his website at: https://joelbrende.com/
Very interesting narrative about your father and his research.