PET Measures of PFC Activity and
Depression or Suicidal Behavior
Widespread altered activity in the PFC is associated with
depression.
Localized medial PFC hypo-function in suicide attempters
is proportional to the medical lethality of the most lethal
life-time suicide attempt.
The activity in this brain region is independent of the
objective severity of the depression, but is related to
impulsivity and suicidal intent. Thus, it can influence
suicidal behavior.