Tiller S G, Persinger M A
Department of Psychology, Laurentian University, Sudbury, Ontario, Canada.
Percept Mot Skills. 1998 Jun;86(3 Pt 2):1240-2. doi: 10.2466/pms.1998.86.3c.1240.
A total of 20 patients who had sustained of significant mechanical energies to the skull (> 40 km/hour) were assessed at Time 1, about one year (68% between 2 mo. and 12 mo.) postincident while Time 2 was about two years later. During Time 1 this group was impaired (proficiency z < -2.00) according to two standardized neuropsychological indices and exhibited abnormally elevated psychometric depression (z > 2.00). There were no statistically significant improvements for the scores between Times 1 and 2 on the Halstead-Reitan Impairment Index, the Memory Quotient, Depression, or an impairment index composed of standardized scores for 31 neuropsychological tests. These results indicated that the presumption of some neuropsychologists that patients with "mild head injury" have fully recovered within one year or will continue to improve after about one year following the incident may not be valid for all patients who sustain such brain trauma.
共有20名颅骨遭受显著机械能损伤（>40公里/小时）的患者在时间1进行了评估，时间1约为事件发生后一年（68%在2个月至12个月之间），而时间2约在两年后。在时间1，根据两项标准化神经心理学指标，该组患者存在损伤（熟练度z<-2.00），且心理测量抑郁异常升高（z>2.00）。在时间1和时间2之间，关于霍尔斯特德-赖坦损伤指数、记忆商数、抑郁或由31项神经心理学测试的标准化分数组成的损伤指数，分数没有统计学上的显著改善。这些结果表明，一些神经心理学家认为“轻度头部损伤”患者在一年内已完全康复或在事件发生后约一年后将继续改善的假设，可能并非对所有遭受此类脑外伤的患者都有效。
