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Reference
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Study Design
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Population
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Type of TBI: Mild, Moderate, Severe; Blunt, Penetrating, Blast
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Health Outcomes or Outcome Measures
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Results
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Adjustments
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Comments or Limitations
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Teuber and Weinstein, 1954
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Cohort
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35 men with brain injury selected from 185 with missile wounds of head, 12 controls with peripheral nerve injury wounds of head controls chosen from 101 with missile wounds of peripheral nerves
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Penetrating missile injuries of head or peripheral nerves
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Form Board Test
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Brain-injured subjects took more time, made more errors, recalled fewer forms than controls
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Subjects, controls sustained injuries 5–8 years before testing
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Subjects grouped on basis of location of lesions
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Weinstein and Teuber, 1957b
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Cohort
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62 men with loss of cerebral tissue due to penetrating head trauma, 50 controls with peripheral nerve injury
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Penetrating head trauma or peripheral nerve trauma
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AGCT administered 13–15 years before injury (on induction into Army)
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Controls had mean increase of 13.0 AGCT points from preinjury to postinjury testing
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Eliminated men with aphasic difficulties that prevented them from reading practice-test questions
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Preinjury AGCT score available for 53 subjects
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Preinjury educational level determined by interview and from case records
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Brain-injured group, excluding aphasics, had average increase of 5.2 points; total brain-injured group had increase of 1.6 points
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AGCT administered again 10–12 years after injury
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Education before injury did not influence extent to which performance on intelligence test was affected after injury
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