Age-Related Changes in Stress Hormone Regulation

Exclusion Criteria: * History of major psychiatric disorders, * Neurologic disorder affecting cognitive function, * Unstable medical problems, * Medications including antidepressants, neuroleptics, anxiolytics, CNS stimulants, narcotic analgesics, anti-convulsants, * Drugs effecting HPA axis function, * Vision and hearing deficits, * Undergoing major life event within one month or * Loss of family member within 6 months.