The content of suffering merges with the impossibility of detaching oneself from suffering. […] In suffering there is an absence of all refuge. It is the fact of being directly exposed to being. It is made of the impossibility of fleeing or retreating. The whole acuity of suffering lies in this impossibility of retreat.
At the root of post-traumatic stress disorder, or PTSD, is a memory that cannot be controlled. It may intrude on everyday activity, thrusting a person into the middle of a horrifying event, or surface as night terrors or flashbacks. Decades of treatment of military veterans and sexual assault survivors have left little doubt that traumatic memories function differently from other memories. […]
The people listening to the sad memories, which often involved the death of a family member, showed consistently high engagement of the hippocampus, part of the brain that organizes and contextualizes memories. When the same people listened to their traumatic memories — of sexual assaults, fires, school shootings and terrorist attacks — the hippocampus was not involved. […]
“traumatic memories are not experienced as memories as such,” but as “fragments of prior events, subjugating the present moment.” The traumatic memories appeared to engage a different area of the brain — the posterior cingulate cortex, or P.C.C., which is usually involved in internally directed thought, like introspection or daydreaming. The more severe the person’s PTSD symptoms were, the more activity appeared in the P.C.C. What is striking about this finding is that the P.C.C. is not known as a memory region, but one that is engaged with “processing of internal experience”
quote { Emmanuel Levinas, Time and the other (page 69), 1979 | PDF }