Saturday, October 2, 2010
Post traumatic stress disorder
The famous PTSD (posttraumatic stress disorder: English PTSD, Post traumatic stress disorder) remains a sure value of the American Psychiatric Press. New demo in The American Journal of Psychiatry that teaches us how the future DSM-V seems to herald a better approach to this disease in order to strengthen its recognition practice, its accurate assessment and effective treatment. This should dismember this PTSD several subtypes affecting its clinical course and response to treatment. Knowing, as these variants, different responses in the activity of various brain regions such as prefrontal cortex, anterior cingulate cortex or limbic system (involved in emotional control), data from functional magnetic resonance imaging confirmed the validity of these nuances nosographic.
In particular, some authors suggest the existence of some form of PTSD is characterized by a massive inhibition of emotion when the subject is confronted with the evocation of a traumatic memory, the emotional disengagement can even lead to an experience of depersonalization or de-fact, close to a psychotic episode. In these patients, posting on the painful memory could be explained by a "hyper-inhibition" of limbic regions and hypoactivity in the hippocampus (known to provide essential support for training, storage and recall of information, in verbal and visual memory). While this PTSD is still considered a single condition, the probable recognition of the diversity of its clinical forms could help to better understand the variations observed in the reactions of traumatized populations.