Data_Sheet_1_Specific Autobiographical Recall Mediates Impact of Cognition and Depression on Independence Function and Well-Being in Older Adults.PDF

Autobiographical memory specificity has been associated with cognitive function, depression, and independence in older adults. This longitudinal study of 162 older adults moving to active supported living environments tracks changes in the role of the ability to recall specific autobiographical memory as a mediator between underlying cognitive function, or depression, and outcome perceived health or independence (e.g., Instrumental Activities of Daily Living, IADLs), across 18 months, as compared with controls not moving home. Clear improvements across time in autobiographical specificity were seen for residents but not controls, supporting the role of a socially active environment, and confirmed by correlation with number of activities reported in diaries, although the impact of diary activities on the effect of time on autobiographical specificity was not found. The role of autobiographical specificity in mediating general cognition and outcome functional limitations was clear for social limitations at 12 and 18 months, but its role in mediating effects of executive function and perceived health persisted throughout. The role of specificity in mediating between depression and perceived health, IADLs, and Functional Limitations persisted throughout. Analysis examining autobiographical specificity and depression as joint mediators between cognition and independence showed a forward effect such that higher specificity scores reduced the negative mediation effect of depression on independence. Finally, data showed the reduction of many of these mediations over time, supporting the role of autobiographical memory in times of change in a person's social situation. Data support potential autobiographical memory intervention development.

自传记忆的特异性与老年成人的认知功能、抑郁情绪及独立性密切相关。本项针对162名迁往活跃支持型生活环境的老年成人的纵向研究，追踪了在18个月的时间内，回忆特定自传记忆的能力在潜在认知功能或抑郁与感知健康或独立性（例如，日常生活活动能力，IADLs）之间作为中介变量所发挥的作用的变化。与未搬家对照组相比，居住者自传记忆特异性随时间推移的明显改善得到了证实，支持了社会活跃环境的作用，并得到日记中报告的活动数量的相关性验证，尽管未发现日记活动对时间对自传记忆特异性影响的作用。在12个月和18个月时，自传记忆特异性在调节社会限制方面的认知和功能限制作用明显，但其对执行功能和感知健康的影响作用贯穿始终。自传记忆特异性在调节抑郁与感知健康、IADLs和功能限制之间的作用也贯穿始终。分析自传记忆特异性与抑郁作为认知与独立性之间共同中介变量的作用，显示了一种正向效应，即更高的特异性评分降低了抑郁对独立性的负面中介效应。最后，数据显示随着时间的推移，许多这些中介作用有所减少，支持了自传记忆在个人社会环境变化时期的作用。数据支持了潜在的自传记忆干预措施的开发。