An Investigation Of Life Experiences, Alcohol And World Beliefs
(2014) An Investigation Of Life Experiences, Alcohol And World Beliefs, no. 66.
Posttraumatic stress disorder (PTSD) is highly comorbid with alcohol use disorders. Explanations for this comorbidity include the self-medication hypothesis and the proposal that PTSD and alcohol use disorders share a third variable. The study used a correlational design to investigate the relationships between experience of a traumatic event, alcohol use, world beliefs and cognitive functioning. A questionnaire survey and a verbal memory task were used. PTSD symptoms had a negative impact on world beliefs which supports the concept of "shattered assumptions". Hyperarousal and avoidance symptoms of PTSD and sex were predictors of variance in alcohol consumption. The study provided further evidence of PTSD and alcohol use disorder comorbidity and supports the self-medication hypothesis as an explanation. The theory of planned behaviour successfully predicts intention to engage in binge drinking behaviour. Verbal memory was not impaired in those who reported PTSD symptoms but scores on the Cognitive Failures Questionnaire were higher.