PTSD
purepedantry | April 5, 2007There was a debate in the post-traumatic stress disorder (PTSD) for some time about whether the shrinkage observed in the hippocampus -- a structure involved in learning and memory -- was the result of the stress or was a vulnerability factor for the disease.
We know that high levels of cortisol -- a stress hormone -- can kill neurons. So you could argue that the stress and stress hormones that cause PTSD could also result in the reduction in hippocampal volume. This is the so-called neurotoxicity hypothesis.
On the other hand, individuals who get PTSD could have some underlying genetic or…
purepedantry | November 20, 2006Women are more susceptible to Post-traumatic Stress Disorder (PTSD) even when the type of the stressful event is controlled for:
Males experience more traumatic events on average than do females, yet females are more likely to meet diagnostic criteria for Posttraumatic Stress Disorder (PTSD), according to a review of 25 years of research reported in the November issue of Psychological Bulletin, published by the American Psychological Association (APA).
The authors reviewed 290 studies conducted between 1980 and 2005 to determine who is more at risk for potentially traumatic events (PTE) and…