Stroop色词测验在识别主观认知功能障碍中的作用

目的 评价改良中文版Stroop色词测验( CWT)在识别主观认知功能障碍( SCI)中的作用. 方法 选择36例以认知功能障碍为主诉的老人和35例正常老年人,进行一般资料问卷调查和神经心理学背景测试,包括简易精神状态量表( MMSE)、日常生活能力量表( ADL)、老年抑郁量表、数字广度、词表记忆等. 采用CWT对所有研究对象进行执行功能测试,分析指标包括错误数、平均反应时、反应干扰量( SIE)的指标反应时之差(即颜色与字义不一致和一致时的平均用时之差) ,并对SCI的CWT结果与年龄和记忆得分进行相关分析. 结果 两组被试者神经心理学背景测试差异无统计学意义. 与正常老年人相比, SCI组的CWT平均反应时、错误数、反应时之差均有显著差异. 平均反应时、错误数与年龄均呈显著正相关性. SCI组反应时之差较正常老年人明显延长,差异有统计学意义(P<0. 05),而其与年龄、错误数、平均反应时、总体认知功能以及记忆等相关检查之间的相关性均不显著. 结论 CWT能有效识别SCI,有一定的敏感性.

Appliation of Stroop color-word test on Chinese elderly patients with subjective cognitive impairment

Objective To investigate the applicability of Stroop color-word test in Chinese eldly patients with sub-jective cognitive impairment. Methods 36 patients with subjective cognitive impairment and 35 normal elders,all accepted general information questionaire( including age,gender,education,ect) ,Chinese version Stroop color-word test,background neuropsychological tests(MMSE,ADL,GDS,ect). Analysis of indicators included: the number of errors,average response,Stroop interference effects ( SIE)-Time difference of the Color inconsistencies and consist-ent with the meaning of words. At last we analyse relationship between CWT results and age,education,et al. Re-sults There were no significant differences in neuropsychological tests. Compared with normal subjects,subjective cognitive impairment subjects spent more time and made more errors in doing this task. They made statistical signifi-cance. The linear regression analysis between reaction time, the number of errors and overall cognitive function ( MMSE) , age, memory ( digit span, delayed recall) showed:the numbers of errors and the average response time had significant positive correlation with age. SIE of SCI was significantly longer than the normal control, the differ-ence was significant (P<0. 05). And it had no significant correlation with age, overall cognitive function and mem-ory and other related inspection. Conclusion Stroop color-word test has a certain sensitivity in recognition of sub-jective cognitive impairment elders.