EEG AND COGNITIVE PERFORMANCE FOLLOWING CLOSED HEAD-INJURY
EEG AND COGNITIVE PERFORMANCE FOLLOWING CLOSED HEAD-INJURY
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DOI：
10.1159/000118471
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发表时间：
1988-01-01
影响因子：
3.2
通讯作者：
MILLER, MH
中科院分区：
文献类型：
--
作者：
RANDOLPH, C;MILLER, MH
10名闭合性颅脑损伤患者和10名匹配的对照受试者参加了一项研究，该研究在认知任务执行过程中检查了定量EEG数据。头部受伤的患者在所有四项任务上的表现都明显不如对照组，并且具有明显更高的EEG振幅和振幅方差。判别分析功能正确识别0%的受试者的基础上的EEG数据。频率分析表明，这些较高的振幅是跨频率的电压增加的产物。此外，脑电数据显着相关的性能在一个认知任务的头部受伤组。结果表明，与标准的临床EEG结果相反，可识别的EEG变化可能会持续数年后，中度至重度闭合性颅脑损伤，这些变化与残留的脑功能缺损。
Ten closed head-injured patients and 10 matched control subjects participated in a study that examined quantitated EEG data during cognitive task performance. The head-injured patients performed significantly worse than controls on all four tasks and had significantly higher EEG amplitudes and amplitude variances. A discriminant analysis function correctly identified 0% of the subjects on the basis of the EEG data. Frequency analysis indicated that these higher amplitudes were a product of across-frequency increases in voltage. In addition, EEG data were significantly correlated with performance on one cognitive task in the head-injured group. Results suggest that, contrary to standard clinical EEG findings, identifiable EEG changes may persist for years following moderate to severe closed head injury, and these changes are related to residual congnitive deficits.