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November 11, 1939

AFTER-EFFECTS OF HEAD INJURYTHE POST-TRAUMATIC CONCUSSION STATE (CONCUSSION, TRAUMATIC ENCEPHALOPATHY) AND THE POST-TRAUMATIC PSYCHONEUROTIC STATE (PSYCHONEUROSIS, HYSTERIA): A STUDY IN DIFFERENTIAL DIAGNOSIS

JAMA. 1939;113(20):1779-1785. doi:10.1001/jama.1939.02800450001001
Abstract

Head injuries from warfare and from industrial and automobile accidents have in recent years occasioned a constantly increasing number of claims for awards, based on veterans' and industrial compensation laws and on public liability. The economic importance of a proper understanding of the physical and mental results of such injuries, from the standpoint of both occupational disability and future outlook for recovery, therefore is of great importance. Head injuries may be classified as organic or functional, dependent on the presence or absence of structural changes in nervous tissue. In the first category, that of organic injuries, are placed brain pressure by depressed skull fracture, epidural or subdural hemorrhage, lacerations, contusions, softenings and complicating infections such as meningitis or abscess. The symptoms and signs of these more evident injuries have been carefully studied and classified as to demonstrated pathologic features, the treatment has been standardized and the prognosis has been fairly

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