 Chinese subjects who think of the self in relation to the community have been found to utilize the vmPFC when thinking about their mothers, whereas American subjects do not.Studies with posttraumatic stress disorder (PTSD) also supported the idea that the ventromedial prefrontal cortex is an important component for reactivating past emotional associations and events, therefore essentially mediating pathogenesis of PTSD.Dysfunction of the vmPFC has also been identified as playing a role in PTSD-affected parents' response to their own children's mental states.