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Updated: Aug 20, 2026
Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury
Published on: November 19, 2012
Neuropsychological performance and sleep disturbance following traumatic brain injury
Omar Mahmood1, Lisa J Rapport, Robin A Hanks
1Department of Psychology, Wayne State University, 71 W. Warren Avenue, Detroit, MI 48202, USA.
Objective:
To examine the relation between sleep disturbance and neurocognitive ability among persons with traumatic brain injury (TBI).
Design:
Correlational research evaluating demographic and neuropsychological predictors of sleep disturbance using multiple regression analysis and analysis of variance.
Participants:
Eighty-seven patients with mild to severe TBI admitted to a comprehensive outpatient neurorehabilitation program.
Main Outcome Measures:
Sleep disturbance assessed using the Pittsburgh Sleep Quality Index.
Results:
Hierarchical regression analysis revealed that performance on selected measures of cognitive functioning significantly improved prediction of sleep disturbance, accounting for 14% of variance beyond that accounted for by injury severity and gender. The total model accounted for 31% of the variance in Pittsburgh Sleep Quality Index scores. Patients with mild TBI reported more sleep disturbance (P < .01) than did patients with severe TBI.
Conclusions:
Sleep disturbance among patients with TBI may be associated with a particular constellation of neuropsychological abilities. These issues are discussed in relation to prior findings that indicate the involvement of additional neuropsychiatric factors associated with sleep disturbance in mild TBI.
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