Background
Relatively few studies of children exposed to trauma have used objective indicators such as heart rate and blood pressure measurements to assess physiological reactivity.
Methods
This pilot study examined physiological reactivity (heart rate, systolic blood pressure, and diastolic blood pressure) and emotional indicators (posttraumatic stress and depressive symptoms) in 17 children of directly exposed Oklahoma City bombing survivors and in 17 demographically matched community comparison children, 7 years after the incident.
Results
Despite generally low levels of subjectively reported posttraumatic stress and depressive symptoms 7 years after the disaster, the children of survivors showed heightened objectively measured physiological reactivity relative to the comparison group. The extent to which this heightened physiological reactivity in the children of survivors was pathologic is unclear. Only 1 participant reported high levels of posttraumatic stress and depressive symptoms; this individual also demonstrated physiological reactivity.
Conclusions
Results suggest children of disaster survivors may experience physiological reactivity despite absence of direct exposure to the trauma or acknowledgement of symptoms. These findings indicate the physiological effects of trauma may endure separate from subjective affect in the offspring of highly exposed disaster survivors. More research is needed to determine the potential consequences of persistent physiological reactivity.
(Publisher abstract provided.)
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