Objectives Cognitive functioning is often impaired in mental and neurological conditions and might fluctuate throughout the day. An existing experience-sampling tool was upgraded to assess individual's cognition in everyday life. The objectives were to test the feasibility and validity of two momentary cognition tasks. Methods The momentary Visuospatial Working Memory Task (mVSWMT) and momentary Digit Symbol Substitution Task (mDSST) were add-ons to an experience sampling method (ESM) smartphone app. Healthy adults (n = 49) between 19 and 73 years of age performed the tasks within an ESM questionnaire 8 times a day, over 6 consecutive days. Feasibility was determined through completion rate and participant experience. Validity was assessed through contextualization of cognitive performance within intrapersonal and situational factors in everyday life. Findings Participants experienced the tasks as pleasant, felt motivated, and the completion rate was high (71%). Social context, age, and distraction influenced cognitive performance in everyday life. The mVSWMT was too difficult as only 37% of recalls were correct and thus requires adjustments (i.e. fixed time between encoding and recall; more trials per moment). The mDSST speed outcome seems the most sensitive outcome measure to capture between- and within-person variance. Conclusions Short momentary cognition tasks for repeated assessment are feasible and hold promise, but more research is needed to improve validity and applicability in different samples. Recommendations for teams engaging in the field include matching task design with traditional neuropsychological tests and involving a multidisciplinary team as well as users. Special attention for individual needs can improve motivation and prevent frustration. Finally, tests should be attractive and competitive to stimulate engagement, but still reflect actual cognitive functioning.

中文翻译：

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日常生活中工作记忆和处理速度的数字评估：可行性、验证和经验教训。

目标 认知功能经常在精神和神经系统疾病中受损，并且可能全天波动。升级了现有的经验抽样工具，以评估个人在日常生活中的认知。目的是测试两个瞬时认知任务的可行性和有效性。方法 瞬时视觉空间工作记忆任务 (mVSWMT) 和瞬时数字符号替换任务 (mDSST) 是经验采样方法 (ESM) 智能手机应用程序的附加组件。19 至 73 岁的健康成年人 (n = 49) 连续 6 天每天 8 次执行 ESM 问卷中的任务。可行性是通过完成率和参与者经验确定的。通过在日常生活中的个人和情境因素中的认知表现的情境化来评估有效性。结果 参与者对任务的体验是愉快的、有动力的，并且完成率很高（71%）。社会背景、年龄和分心影响了日常生活中的认知表现。mVSWMT 太难了，因为只有 37% 的召回是正确的，因此需要调整（即编码和召回之间的固定时间；每分钟更多的试验）。mDSST 速度结果似乎是捕捉个人之间和个人内部差异的最敏感的结果衡量标准。结论 用于重复评估的短期认知任务是可行的并且具有前景，但需要更多的研究来提高在不同样本中的有效性和适用性。对参与该领域的团队的建议包括将任务设计与传统的神经心理学测试相匹配，并让多学科团队和用户参与进来。对个人需求的特别关注可以提高动力并防止挫败感。最后，测试应该是有吸引力和有竞争力的，以刺激参与，但仍然反映实际的认知功能。