The study’s lead author, Robert Rozeske, Assistant Professor in University of Toronto’s Department of Psychology, said: “That gave us something conventional fear conditioning experiments cannot easily provide: a moment-by-moment view of the brain switching between competing maps of dangerous and safe memories.”
Article source: https://www.huffingtonpost.co.uk/entry/fear-brain-mechanism-ptsd-anxiety_uk_6aeb0f42e4b0f78622d7b686