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Soldiers with a traumatic brain injury (TBI) present with an array of neuropsychiatric symptoms that can be grouped into nosological clusters: (1) cognitive dysfunctions: difficulties in memory, attention, language, visuospatial cognition, sensory-motor integration, affect recognition, and/or executive function typically associated with neocortical damage; (2) neurobehavioral disorders: mood, affect, anxiety, posttraumatic stress, and psychosis, as well as agitation, sleep problems, and libido loss, that may have been caused by damage to the cortex, limbic system, and/or brain stem monoaminergic projection systems; (3) somatosensory disruptions: impaired smell, vision, hearing, equilibrium, taste, and somatosensory perception frequently caused by trauma to the sensory organs or their projections through the brain stem to central processing systems; (4) somatic symptoms: headache and chronic pain; and (5) substance dependence. TBI-related cognitive impairment is common in veterans who have served in recent conflicts in the Middle East and is often related to blasts from improvised explosive devices. Although neurobehavioral disorders such as depression and posttraumatic stress disorder commonly occur after combat, the presentation of such disorders in those with head injury may pass undetected with use of current diagnostic criteria and neuropsychological instruments. With a multidimensional approach (such as the biopsychosocial model) applied to each symptom cluster, psychological, occupational, and social dysfunction can be delineated and managed.
Halbauer et al. (Thu,) studied this question.