This article discusses the methods and benefits of reminiscence therapy: https://www.verywellhealth.com/reminiscence-as-activity-and-therapy-97499
An article about a California town: "Fake ’50s town offers real benefits for people with dementia" https://www.curbed.com/2018/9/20/17882054/alzheimers-center-town-square-dementia-glenner
A museum with old product brands aids reminiscence therapy:
A senior living facility with rooms designed to help with memories: https://www.weau.com/content/news/New-rooms-at-senior-living-facility-in-Altoona-hope-to-trigger-old-memories-507425481.html
Using virtual reality to recreate the past: https://www.thedailybeast.com/how-virtual-reality-can-help-fight-dementia