The goal of this clinical trial is to learn if mindfulness meditation can improve outcomes in older adults with and without cognitive impairment. The main questions it aims to answer are: 1. How does mindfulness impact thinking and memory? 2. How does mindfulness influence brain function and structure? 3. How does mindfulness affect daily function and quality of life? Researchers will compare all outcomes to one other groups. In one group, individuals will participate in a mindfulness class intervention; in the other group, individuals will not engage in any active interventions immediately, but will be placed on a waitlist for the mindfulness intervention. Researchers will compare all outcomes between the groups groups to determine whether the mindfulness interventions leads to greater improvement compared to no intervention (waitlist group). Participants will: * Be randomly assigned to participate in the mindfulness intervention, or no immediate intervention (waitlist) * Complete paper-and-pencil cognitive testing, surveys, computerized tasks, and neuroimaging measures (EEG and MRI) before and after the intervention Outcomes will be assess at baseline, 2 months, 4 months and 6 months.
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Neuropsychological tests
Timeframe: From before the intervention (baseline) to after the intervention (post-intervention 10 weeks)
Performance on computerized tasks
Timeframe: From before the intervention (baseline) to after the intervention (post-intervention 10 weeks)
Resting state and event-related electrophysiology
Timeframe: From before the intervention (baseline) to after the intervention (post-intervention 10 weeks)
Brain function and structure
Timeframe: From before the intervention (baseline) to after the intervention (post-intervention 10 weeks))
Survey outcomes
Timeframe: From before the intervention (baseline) to after the intervention (post-intervention 10 weeks))