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Retrospective and Prospective Memory Among OEF/OIF/OND Veterans With a Self-Reported History of Blast-Related mTBI

  • Kathleen F. Pagulayan (a1) (a2), Holly Rau (a1), Renee Madathil (a1), Madeleine Werhane (a3) (a4), Steven P. Millard (a1) (a5), Eric C. Petrie (a1) (a2), Brett Parmenter (a1) (a2), Sarah Peterson (a1), Scott Sorg (a4), Rebecca Hendrickson (a1), Cindy Mayer (a1), James S. Meabon (a1) (a2), Bertrand R. Huber (a6) (a7), Murray Raskind (a1) (a2), David G. Cook (a5) (a8) (a9) and Elaine R. Peskind (a1) (a2)...

Abstract

Objectives: To evaluate prospective and retrospective memory abilities in Operation Enduring Freedom (OEF), Operation Iraqi Freedom (OIF), and Operation New Dawn (OND) Veterans with and without a self-reported history of blast-related mild traumatic brain injury (mTBI). Methods: Sixty-one OEF/OIF/OND Veterans, including Veterans with a self-reported history of blast-related mTBI (mTBI group; n=42) and Veterans without a self-reported history of TBI (control group; n=19) completed the Memory for Intentions Test, a measure of prospective memory (PM), and two measures of retrospective memory (RM), the California Verbal Learning Test-II and the Brief Visuospatial Memory Test-Revised. Results: Veterans in the mTBI group exhibited significantly lower PM performance than the control group, but the groups did not differ in their performance on RM measures. Further analysis revealed that Veterans in the mTBI group with current PTSD (mTBI/PTSD+) demonstrated significantly lower performance on the PM measure than Veterans in the control group. PM performance by Veterans in the mTBI group without current PTSD (mTBI/PTSD-) was intermediate between the mTBI/PTSD+ and control groups, and results for the mTBI/PTSD- group were not significantly different from either of the other two groups. Conclusions: Results suggest that PM performance may be a sensitive marker of cognitive dysfunction among OEF/OIF/OND Veterans with a history of self-reported blast-related mTBI and comorbid PTSD. Reduced PM may account, in part, for complaints of cognitive difficulties in this Veteran cohort, even years post-injury. (JINS, 2018, 24, 324–334)

Copyright

Corresponding author

Correspondence and reprint requests to: Kathleen F. Pagulayan, VA Puget Sound Health Care System, Mail Code S-116-MIRECC, 1660 South Columbian Way, Seattle, WA, 98108. E-mail: farkat@u.washington.edu

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