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Behav. Sci. 2014, 4(4), 471-486; doi:10.3390/bs4040471

Objective Neuropsychological Deficits in Post-Traumatic Stress Disorder and Mild Traumatic Brain Injury: What Remains Beyond Symptom Similarity?

1
Department of Psychology, Université du Québec à Montréal, Quebec, H2X 3P2, Canada
2
Lucie-Bruneau Rehabilitation Centre, Montreal, Quebec, H2H 2N8, Canada
3
Institut Universitaire en Santé Mental de Montréal, Montreal, Quebec, H1N 3M5, Canada
4
Department of Criminology, Université de Montréal, Montreal, Quebec, H3C 3J7, Canada
*
Author to whom correspondence should be addressed.
Received: 1 September 2014 / Revised: 15 October 2014 / Accepted: 24 November 2014 / Published: 1 December 2014
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Abstract

This exploratory study intends to characterize the neuropsychological profile in persons with post-traumatic stress disorder (PTSD) and mild traumatic brain injury (mTBI) using objective measures of cognitive performance. A neuropsychological battery of tests for attention, memory and executive functions was administered to four groups: PTSD (n = 25), mTBI (n = 19), subjects with two formal diagnoses: Post-traumatic Stress Disorder and Mild Traumatic Brain Injury (mTBI/PTSD) (n = 6) and controls (n = 25). Confounding variables, such as medical, developmental or neurological antecedents, were controlled and measures of co-morbid conditions, such as depression and anxiety, were considered. The PTSD and mTBI/PTSD groups reported more anxiety and depressive symptoms. They also presented more cognitive deficits than the mTBI group. Since the two PTSD groups differ in severity of PTSD symptoms but not in severity of depression and anxiety symptoms, the PTSD condition could not be considered as the unique factor affecting the results. The findings underline the importance of controlling for confounding medical and psychological co-morbidities in the evaluation and treatment of PTSD populations, especially when a concomitant mTBI is also suspected. View Full-Text
Keywords: neuropsychological deficits; PTSD; mTBI; comorbidity; symptom similarity neuropsychological deficits; PTSD; mTBI; comorbidity; symptom similarity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Pineau, H.; Marchand, A.; Guay, S. Objective Neuropsychological Deficits in Post-Traumatic Stress Disorder and Mild Traumatic Brain Injury: What Remains Beyond Symptom Similarity? Behav. Sci. 2014, 4, 471-486.

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