This study is designed to test if sensory stimulation can help people with mild to moderate Alzheimer's disease, a brain condition that affects memory. **Sensory stimulation** includes activities that engage the senses, such as sight and sound. The study involves 600 participants who will receive either the real treatment or a fake (sham) one for 12 months. Researchers will measure progress using tests like the Alzheimer's Disease Cooperative Study - Activities of Daily Living (**ADCS-ADL**) and the Mini-Mental State Exam (**MMSE**). Participants will visit the study center several times over the year and will have some phone check-ins. Some participants will also provide fluid samples for additional research.
- Study lasts for 12 months with multiple visits.
- Participants must be between 50-90 years and have Alzheimer's disease.
- No cost for participation, but some risks like lumbar puncture for fluid collection.
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