Scientists discover dissociative subtype of post-traumatic stress disorder
A recent study by Erika J. Wolf, PhD, and Principal Investigator Mark W. Miller, PhD, both from the National Center for PTSD at the VA Boston Healthcare System and Department of Psychiatry at Boston University School of Medicine (BUSM), found an association between posttraumatic stress disorder (PTSD) and dissociation. The findings, published in the Archives of General Psychiatry, suggest that symptoms of dissociation, which reflect problems in consciousness and awareness, are a prominent feature of PTSD in a distinct subtype of individuals with the disorder.
The relationship of dissociation and PTSD is controversial but important for accurately classifying PTSD and better understanding its course. The researchers studied PTSD and dissociative symptoms in 492 veterans and their intimate partners, all of whom had histories of trauma. Participants reported exposure to a variety of traumatic events including combat, childhood physical and sexual abuse, partner abuse, motor vehicle accidents and natural disasters with most participants reporting exposure to multiple types of traumatic events.
In the study, participants were interviewed by clinicians using the Clinician Administered PTSD Scale (CAPS), a diagnostic instrument that measures the frequency and severity of PTSD and dissociation symptoms. Analysis revealed a small but distinct subset of participants characterized by high symptoms of dissociation and PTSD along with high rates of sexual assault history. This study contributes to a growing body of research, providing a basis for adding the new dissociative subtype distinction to the PTSD diagnosis in the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM-5).
"This study helps to identify a small group of individuals who show a unique pattern of post-traumatic symptoms marked by derealization, or feeling that one's surroundings are unreal or unfamiliar, and depersonalization, or feeling that one's body is unfamiliar or strange," said Wolf. "The results clarify that these symptoms are not a core part of PTSD for most people with the disorder. However, identification of this group of individuals is important for maximizing PTSD treatment effectiveness."
Journal reference: JAMA Psychiatry
Provided by Boston University Medical Center
- PTSD linked to increase risk in heart disease Jun 01, 2011 | not rated yet | 0
- Chronic post-traumatic stress disorder in women linked to history of rape, child abuse Nov 29, 2011 | not rated yet | 0
- Young adults with post-traumatic stress disorder may be more likely to attempt suicide Mar 02, 2009 | not rated yet | 0
- PTSD associated with more, longer hospitalizations Mar 27, 2008 | not rated yet | 0
- The search for predictors of risk for post-traumatic stress disorder Sep 05, 2011 | not rated yet | 0
- Motion perception revisited: High Phi effect challenges established motion perception assumptions Apr 23, 2013 | 3 / 5 (2) | 2
- Anything you can do I can do better: Neuromolecular foundations of the superiority illusion (Update) Apr 02, 2013 | 4.5 / 5 (11) | 5
- The visual system as economist: Neural resource allocation in visual adaptation Mar 30, 2013 | 5 / 5 (2) | 9
- Separate lives: Neuronal and organismal lifespans decoupled Mar 27, 2013 | 4.9 / 5 (8) | 0
- Sizing things up: The evolutionary neurobiology of scale invariance Feb 28, 2013 | 4.8 / 5 (10) | 14
Pressure-volume curve: Elastic Recoil Pressure don't make sense
May 18, 2013 From pressure-volume curve of the lung and chest wall (attached photo), I don't understand why would the elastic recoil pressure of the lung is...
If you became brain-dead, would you want them to pull the plug?
May 17, 2013 I'd want the rest of me to stay alive. Sure it's a lousy way to live but it beats being all-the-way dead. Maybe if I make it 20 years they'll...
MRI bill question
May 15, 2013 Dear PFers, The hospital gave us a $12k bill for one MRI (head with contrast). The people I talked to at the hospital tell me that they do not...
Ratio of Hydrogen of Oxygen in Dessicated Animal Protein
May 13, 2013 As an experiment, for the past few months I've been consuming at least one portion of Jell-O or unflavored Knox gelatin per day. I'm 64, in very...
Alcohol and acetaminophen
May 13, 2013 Edit: sorry for the typo in the title , can't edit I looked around on google quite a bit and it's very hard to find precise information on the...
Marie Curie's leukemia
May 13, 2013 Does anyone know what might be the cause of Marie Curie's cancer
- More from Physics Forums - Medical Sciences
More news stories
A Mediterranean diet with added extra virgin olive oil or mixed nuts seems to improve the brain power of older people better than advising them to follow a low-fat diet, indicates research published online in the Journal of ...
Psychology & Psychiatry 7 hours ago | not rated yet | 0
More people are being diagnosed with eating disorders every year and the most common type is not either of the two most well known—bulimia or anorexia—but eating disorders not otherwise specified (eating disorders that ...
Psychology & Psychiatry 7 hours ago | not rated yet | 0
Turns out, that old "practice makes perfect" adage may be overblown. New research led by Michigan State University's Zach Hambrick finds that a copious amount of practice is not enough to explain why people ...
Psychology & Psychiatry 8 hours ago | 3.3 / 5 (10) | 0 |
(Medical Xpress)—Individuals who learn two languages at an early age seem to switch back and forth between separate "sound systems" for each language, according to new research conducted at the University of Arizona.
Psychology & Psychiatry 10 hours ago | 5 / 5 (4) | 0 |
Video games that pit players against human-looking characters may be more likely to provoke violent thoughts and words than games where monstrous creatures are the enemy, according to a new study by researchers ...
Psychology & Psychiatry 10 hours ago | not rated yet | 0
Early-life exposure to traffic-related air pollution was significantly associated with higher hyperactivity scores at age 7, according to new research from the University of Cincinnati (UC) and Cincinnati Children's Hospital ...
2 hours ago | not rated yet | 0 |
(Medical Xpress)—A research team, led by Jeremy Barr, a biology post-doctoral fellow, unveils a new immune system that protects humans and animals from infection.
7 hours ago | 4.5 / 5 (11) | 3 |
Bacteria resistant to the antibiotic colistin are also commonly resistant to antimicrobial substances made by the human body, according to a study in mBio, the online open-access journal of the American Society for Microb ...
2 hours ago | 5 / 5 (1) | 0
New research suggests that a compound abundant in the Mediterranean diet takes away cancer cells' "superpower" to escape death. By altering a very specific step in gene regulation, this compound essentially re-educates cancer ...
10 hours ago | 4.8 / 5 (11) | 2 |
Researchers have pinpointed a catalytic trigger for the onset of Alzheimer's disease – when the fundamental structure of a protein molecule changes to cause a chain reaction that leads to the death of neurons ...
11 hours ago | 5 / 5 (3) | 0 |
Salamanders' immune systems are key to their remarkable ability to regrow limbs, and could also underpin their ability to regenerate spinal cords, brain tissue and even parts of their hearts, scientists have ...
11 hours ago | 4.8 / 5 (6) | 2 |