In the brain, these thoughts can often be traced to overreactivity in the amygdala, a small site in the middle of the brain that, among its many other functions, responds to novelty and threat. When the amygdala works as it should, it orchestrates a physiological response to changes in the environment. That response includes heightened memory for emotional experiences and the familiar chest pounding of fight or flight. But in people born with a particular brain circuitry, the kind seen in Kagan’s high-reactive study subjects, the amygdala is hyperreactive, prickly as a haywire motion-detector light that turns on when nothing’s moving but the rain. Other physiological changes exist in children with this temperament, many of them also related to hyperreactivity in the amygdala. They have a tendency to more activity in the right hemisphere, the half of the brain associated with negative mood and anxiety; greater increases in heart rate and pupil dilation in response to stress; and on occasion higher levels of the stress hormones cortisol and norepinephrine.
yc c on 30 Jun 10There's no question that family secrets are destructive. But it matters mightily when and how you reveal them. Resist the temptation to handle them at transition times such as weddings, graduations, and new beginnings. As a family therapist, I'm a professional secret-keeper. I'm often ~the very first person with whom someone risks telling a longheld secret. Several decades of guiding people struggling with secrets have taught me that they have an awesome if paradoxical power to unite people--and to divide them.
