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This is an observational study aiming to establish a Korean cognitive aging cohort to track changes in cognitive function with aging. Adults aged 60 and older living in the Republic of Korea who can use smartphone applications and have sufficient cognitive ability to follow research instructions can take part. It is a study with no assigned phase and is currently recruiting participants.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
Inclusion Criteria: * Adults aged 60 or older residing in the Republic of Korea * Samsung Galaxy smartphone users capable of using smartphone applications * Sufficient cognitive ability to understand and follow research instructions (MMSE score of 21 or above) * For individuals who do not meet the cognitive criteria, those who understand the study procedures and provide informed consent along with their legal guardian Exclusion Criteria: * Diagnosis of dementia at baseline * Severe visual or hearing impairments that prevent participation in psychological assessments * Illiteracy that prevents participation in cognitive testing * Less than 80% compliance with the 2-day preliminary EMA protocol (one additional attempt allowed after re-training) * Current alcohol or substance abuse * Inability to ambulate or psychiatric conditions that prevent survey participation * Currently undergoing cancer treatment or received chemotherapy within the past 6 months