必选数字记忆测验对伪装记忆损伤的鉴别作用

目的：探讨Hiscock必选数字记忆测验对伪装记忆缺损的作用,并确定该测验判定伪装记忆缺损的划界分。方法;以66名不同损伤程度的非赔偿性脑外伤患者及24名赔偿性脑外伤伴有伪装智力低下者为研究对象,并与58名正常人作对照,对各组的必选数字记忆测验结果进行方差分析,计算累计百分率,并对伪装划界分作判定分析。结果：伪装组回答正确数与对照组及3个非伪装组之间差异均有非常显著性;容易条目的回答正确数小于等于11,或者困难条目的回答正确数小于等于7,可判定为仿装。判定的总正确率为98．6％,假阳性率为1．4％。结论：必选数字记忆测验是鉴别伪装记忆缺损的有效的评定工具。

Detecting Dissimulation: Profiles of Traumatic Brain-Injury Patients With and Without Compensation and Normal Controls on Hiscock and Hiscock's Forced-Choice Digit Memory Test

Objective:To explore the validity of Hiscock and Hiscock's Forced-Choice Digit Memory Test (HDMT) in detecting dissimulation of memory deficit. Methods: Group comparisons were conducted. The performance of 24 subjects with compensation were compared to that of 66 subjects without compensation and 58 normal controls. Results: There were a significant differences between dissimulating group and other groups. The accuracy of distinction was 98.6% when the cut off scores of HDMT was 11 for easy items and 7 for difficult items. Conclusion: HDMT was useful for detecting true memory deficit as well as dissimulation.