遗忘型轻度认知损伤患者内隐和外显记忆的研究

目的　对遗忘型轻度认知损伤 (MCI)患者的内隐记忆和外显记忆进行研究。方法　为横断面研究 ,采用词语自由回忆、再认、自由联想和字根补笔的方法 ,分别测试 2 0例遗忘型MCI患者 (MCI组 )和 2 0例认知功能正常的老年人 (对照组 )的外显记忆和内隐记忆。结果　遗忘型MCI组存在语义性启动效应和知觉性启动效应 ,遗忘型MCI组较对照组外显记忆降低 ,而内隐记忆无显著差异。结论　遗忘型MCI患者的记忆功能呈外显记忆损害 ,内隐记忆保存的特点 ,这种记忆功能的双重性为MCI患者记忆功能康复训练提供了理论依据。

Research into implicit and explicit memory in the patients with amnestic mild cognitive impairment

Objective To study the implicit and explicit memory in the patients with amnestic mild cognitive impairment (MCI).Methods The study employed a cross-sectional design.Twenty patients with MCI (MCI group) and 20 normal elderly(control) were examined using a set of psychological tests including word free recall, recognition, free association and degraded word naming test.Results The group of forgetful-style MCI had semantic priming effect and apperceptive priming effect. In addition, this group also had a decline in explicit memory as compared with controls,however there was no significant difference in the implicit memory.Conclusion Patient with forgetful-style MCI exhibits a decline in explicit memory,but the implicit memory is relatively complete. The dualnature of memorial function provides theoretical basis for the rehabilitative training of MCI patients.