The purpose of this study was to examine the effects of simplified reminiscence practice using olfactory stimuli on depression and cognitive function in community-dwelling older adults in Japan. Accordingly, 61 individuals were randomly divided into two groups. In the intervention group, 12 sessions of reminiscence were performed using olfactory cards. In the control group, reminiscence sessions were similarly performed, but with language cards. The Geriatric Depression Scale-15 (GDS-15) was used to measure mental health status and the Five Cognitive Test was used to measure cognitive function at baseline and after completion of the intervention. The final sample included 27 participants in the intervention group and 23 participants in the control group. Basic characteristics of the participants at baseline were compared and a significant difference was observed between the two groups in age (p = 0.029). Repeated-measures analysis of covariance with age as the covariate revealed a significant interaction between time and group on the GDS-15 (p = 0.04). Furthermore, a before and after comparison using a paired t-test showed a significant difference only in the intervention group (p = 0.01). The results of this study suggest that simplified reminiscence practice using olfactory cards could serve as an intervention to help maintain the mental health of community-dwelling older adults.

这项研究的目的是研究使用嗅觉刺激的简化回忆练习对日本社区居民老年人抑郁和认知功能的影响。因此，将61个人随机分为两组。在干预组中，使用嗅觉卡进行了12次回忆。在对照组中，进行回忆会议的方法类似，但使用语言卡。老年抑郁量表15（GDS-15）用于测量心理健康状况，五项认知测验用于测量基线和干预完成后的认知功能。最终样本包括干预组的27名参与者和对照组的23名参与者。p = 0.029）。对年龄作为协变量的协方差的重复测量分析显示，GDS-15上的时间与组之间存在显着的交互作用（p = 0.04）。此外，使用配对t检验的前后比较仅在干预组中显示出显着差异（p = 0.01）。这项研究的结果表明，使用嗅觉卡简化的回忆行为可以作为干预措施，帮助维持社区居民的老年人的心理健康。