| Popis: |
Psychological stressors, including acute stressors such as public speaking, short-term stressors such as exam periods, and long-term stressors such as caregiving have all been associated with changes in physiological systems. Much of the literature relating psychological stress and physiology has ignored how physiometrics—the reliability and validity of physiological parameters and biomarkers—might affect the estimation of relationships between these parameters and measures of stress. Acute physiological reactivity to experimental stress can serve as a meaningful predictor of future health outcomes and disease risk. Biomarkers used in studies of stress and other psychosocial variables have a wide range of variability. Cortisol, for example, does not generalize well from one day to the next, but if multiple days are collected at each time point, stability over weeks to months is low to moderate. Every study of stress physiology should use sufficiently reliable and generalizable measurement to avoid misestimation and both Type I and Type II errors. |
