Posttraumatic stress disorder psychotrauma
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Royal Dutch Army soldiers of the battle groups who are being deployed to Uruzgan, Afghanistan.
Exclusion criteria
Exclusion criteria: Soldiers will be excluded who already completed the conditioning tasks used in previous studies conducted by prof.dr. Engelhard. (MEC 04-217). Such prior experience will likely influence the results. The other exclusion criterium is color blindness. We do not use other exclusion criteria, as we wish to include a representative sample of soldiers who are deployed to Uruzgan.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Differences in fear-learning that are already present before deployment between soldiers who develop PTSD symptoms and those who do not, after deployment. These differences are revealed in US-expectancy patterns during the differential conditioning task and the US-expectancy bias task, and differences in reaction times at the affective priming task. In addition, study parameters are differences in inhibitory learning shortly after deployment, revealed through differences in startle reactivity, skin conductance and US-expectancy in response to the inhibitory learning task. Posttraumatic complaints and other psychological complains are assessed using a self-report questionnaire and a semi-structured interview. | — |
Secondary
| Measure | Time frame |
|---|---|
| Questionnaires will be administered to assess demographics characteristics, psychological and physical symptoms (including problems related to anger and alcohol use), personality features (including neuroticism, extraversion, worry, anxiety sensitivity, intolerance of uncertainty, and frustration intolerance), deployment-related variables (support within unit, stressors on earlier deployments), life-events, and positive experiences (positive experiences of deployment, perceived growth). | — |
Countries
Netherlands