Contributions to Executive Dysfunction in Operation Enduring Freedom/Operation Iraqi Freedom Veterans With Posttraumatic Stress Disorder and History of Mild Traumatic Brain Injury

The Journal of Head Trauma Rehabilitation
Sarah M JurickAmy J Jak

Abstract

Posttraumatic stress disorder (PTSD), history of mild traumatic brain injury (mTBI), and executive function (EF) difficulties are prevalent in Operation Enduring Freedom/Operation Iraqi Freedom (OEF/OIF) Veterans. We evaluated the contributions of injury variables, lower-order cognitive component processes (processing speed/attention), and psychological symptoms to EF. OEF/OIF Veterans (N = 65) with PTSD and history of mTBI were administered neuropsychological tests of EF and self-report assessments of PTSD and depression. Those impaired on one or more EF measures had higher PTSD and depression symptoms and lower processing speed/attention performance than those with intact performance on all EF measures. Across participants, poorer attention/processing speed performance and higher psychological symptoms were associated with worse performance on specific aspects of EF (eg, inhibition and switching) even after accounting for injury variables. Although direct relationships between EF and injury variables were equivocal, there was an interaction between measures of injury burden and processing speed/attention such that those with greater injury burden exhibited significant and positive relationships between processing speed/attent...Continue Reading

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Citations

Mar 15, 2020·Cognitive, Affective & Behavioral Neuroscience·Maria M QuinonesKathi Heffner
Nov 18, 2018·Journal of the International Neuropsychological Society : JINS·Laura D CrockerAmy J Jak
Nov 18, 2020·Applied Neuropsychology. Adult·Sarah L MartindaleJared A Rowland
Nov 10, 2020·The Journal of Head Trauma Rehabilitation·Amy A HerroldTommi Raij

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