The role of panic in acute dissociative reactions following trauma. Bryant RA, Panasetis P.
SourceSchool of Psychology, University of New South Wales, Sydney, Australia. r.bryant@unsw.edu.au AbstractOBJECTIVE:'Peritraumatic dissociation' refers to alterations in awareness and memory for events that occur during and shortly after a traumatic experience. Despite the prevalence of reported peritraumatic dissociation, little is known about the mechanisms that mediate dissociative responses in the initial period after trauma. One theory suggests that peritraumatic dissociation may be a response to elevated arousal and panic symptoms during trauma. This study investigated panic symptoms that occurs at the time of the trauma and their relationship to ongoing dissociation in acute stress disorder.
DESIGN:A sample of traumatized people with acute stress disorder or controls were administered a range of psychopathology measures within one month of their trauma.
METHOD:Fifty-one civilian trauma survivors with either acute stress disorder or no acute stress disorder were administered the acute stress disorder interview, the Impact of Event Scale, the Beck Anxiety Inventory, the Peritraumatic Dissociative Experiences Questionnaire, and the Physical Reactions Scale to index panic reactions during the trauma.
RESULTS:Hierarchical regression analysis found that panic reactions during the trauma accounted for nearly half of the variance (47%) of peritraumatic dissociation, and subsequent stress reactions accounted for an additional 3% of the variance.
CONCLUSIONS:These findings are consistent with proposals that acute dissociation is associated with panic symptoms that occur during the traumatic experience. Possible mechanisms for the association of panic and dissociation are discussed.
PMID:16368028[PubMed - indexed for MEDLINE]
These are not chemical reactions but thermonuclear reactions.
Electron transfer reactions. reactions involving losing and gaining electrons
physical reactions are reactions that handle physically
The two major sets of reactions involved in photosynthesis are the light-dependent reactions and the light-independent reactions (Calvin cycle). In the light-dependent reactions, light energy is used to produce ATP and NADPH, while in the Calvin cycle, ATP and NADPH are used to convert carbon dioxide into glucose.
Nuclear reactions in a nuclear reactor are controlled reactions. The reactions in the atomic bomb are not controlled reactions
Anabolic reactions are chemical processes in the body that build larger molecules from smaller ones. Another name for these reactions is biosynthetic reactions.
Biochemical reactions
The light reactions provide energy carriers for the dark reactions.
The dark reactions that occur in plants are dependent on the light reactions because the dark reactions need ATP and NADPH. ATP and NADPH are energy molecules that dark reactions need to do their job.
Exothermic reactions produce heat. Endothermic reactions take in heat from the surrounding area and get cold.
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Exergonic reactions.