Why the study?
Does PTSD affect dark-enhanced startle responses and heart rate variability in a traumatized civilian sample?
Population
141 traumatized civilians seeking treatment at Grady Memorial Hospital in Atlanta, Georgia, with and without…
Comparison
Posttraumatic stress disorder and dark-enhanced… vs No PTSD and light phase of the startle session
Design
Cross-sectional
Authors
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Sex-specific PTSD associations with startle and HRV should not yet change practice; leaves open need for longitudinal confirmation in civilians.
Does PTSD affect dark-enhanced startle responses and heart rate variability in a traumatized civilian sample?
Sex differences exist in psychophysiological responses to trauma, with PTSD associated with greater dark-enhanced startle in women and greater high-frequency HRV in men.
Kamkwalala et al. (2012) studied this question.
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