We thought, given the terrible situation in Haiti, it might be useful to post the results of this classic study of survivors of the great Turkish earthquake of 1999, which points to what makes survivors more vulnerable to PTSD.  Subsequent surveys from China, Japan, Italy, El Salvador and Iceland support these findings. , Additional factors appear to be dislocation, subsequent financial difficulties, disruption of social networks, injury, the intensity of fear and/or presence of dissociation at the time of the trauma. Loss of family and friends appear to be more associated with depression rather than posttraumatic stress.  Difficulties appear to be fairly longstanding, according to most of these surveys.

Researchers from King's College at the University of London in the UK examined the incidence of posttraumatic stress disorder (PTSD) and depression in 586 earthquake survivors living in prefabricated housing, an average of 20 months after the 1999 Marmara earthquake in Turkey. 

In a really fascinating and important meta-analysis, researchers from Tufts University studied identical twins to see whether resting functional brain abnormalities found in combat-related PTSD are acquired characteristics or familial risk factors.

Recent neuroimaging research has shown functional abnormalities in the anterior cingulate cortex, amygdala, and hippocampus in people with posttraumatic stress disorder (PTSD).

This study compares the PET scans (of resting regional cerebral metabolic rate for glucose) in fourteen combat-exposed veterans with PTSD and their fourteen identical co-twins, not exposed to combat, as well as nineteen combat-exposed veterans without PTSD (n = 19) and their nineteen identical co-twins, not exposed to combat.

A research team from New York University and the University of Texas at Austin demonstrated that timing is critical in extinguishing a fear response – and this has groundbreaking potential for the treatment of phobias, anxiety disorders and posttraumatic stress.  Evidently, there’s a brief window of opportunity for rewriting painful emotional memories immediately after re-activating them, when the imprinted memory becomes labile and open to change.

Simple fear was created in 65 subjects by giving them a mild electrical shock on the wrist one third of the time when shown a colored square appear on a computer screen (Earlier research in conditioned learning shows that this is the frequency of ‘punishment’ that creates a lasting association).

Researchers from the University of Bielefeld in Germany compared the efficacy of two different treatments for children in a refugee camp in Sri Lanka with severe PTSD, in the acute aftermath of the Tsunami of 2004.

Thirty-one children were randomly assigned to one of two pragmatic, short-term interventions, delivered by trained local counselors: either 6 sessions of Narrative Exposure Therapy for children (KIDNET) or six sessions of meditation-relaxation (MED-RELAX).

Researchers from University Hospital of Wales in Cardiff, UK, performed a systematic review of counseling interventions designed to prevent the acquisition of posttraumatic stress.  Earlier reviews had already established that Critical Incident Stress Debriefing has no effect on preventing PTS. Single session interventions were excluded for this review, which looked at other forms of multiple session early psychological intervention, begun within three months of a traumatic event, aimed at preventing PTS.

Researchers from the University of Louisville in Kentucky looked at whether Mindfulness-based Stress Reduction (MBSR) can reduce stress arousal in patients suffering from fibromyalgia.

An earlier study by this principal investigator showed that MBSR reduced depressive symptoms in patients with fibromyalgia with gains maintained at two months follow-up (Sephton et al., Arthritis & Rheumatism, 57:77-85, 2007).

This second study explored the effects of MBSR on basal sympathetic (SNS) activation among women with fibromyalgia. Twenty-four participants were tested before and after MBSR for anxiety, depressive symptoms, and SNS activation.

Researchers from the Departments of Sociology and Criminal Justice at Old Dominion University at Norfolk, Virginia, examined the impact of a structured meditation program intervention on female detainees, comparing an experimental group and a control group for medical symptoms, emotions, and behaviors before and after the intervention.

A 2 1/2-hour meditation session was held once a week for 7 weeks. Study participants completed a medical symptoms checklist before the program began and after it ended.

Researchers R. Bruce Lydiard, Ph.D., M.D., and Mark Hammer MD from the Ralph H. Johnson VA Medical Center in Charleston SC , are embarking on some important research that targets sleep disturbance in posttraumatic stress.  Their premise is that the first-line treatments for posttraumatic stress disorder - medication (selective serotonin reuptake inhibitors) and cognitive behavior therapy – do not adequately treat nightmares and insomnia. Nor do they feel that there is sufficient awareness in the mental health community of the critical role sleep disturbance plays in PTSD.

Researchers from Cardiff and Vale NHS Trust in Wales, UK, explored the impact of various interventions when they are delivered within 3 months of the traumatic event.

The study identified 25 randomized, controlled trials of multiple-session psychological treatments aimed at preventing or reducing traumatic stress symptoms in individuals within 3 months of exposure to a traumatic event.  The studies examined a range of interventions.