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We invite you to join us in Alzheimer’s research on The Longest Day!


Stall Catchers is a citizen science game, developed by the Human Computation Institute, as part of the EyesOnALZ project. We are crowdsourcing promising Alzheimer’s research data from Cornell University.  With your help, we could find a potential treatment in just a few years!

Anyone can play, from any device! (any smartphone, ipad or tablet, PC or Mac) We have a community of over 10,000 “catchers”, from ages 6 to 88, many of which are caregivers, family members of those affected, and people living with Alzheimer’s themselves.

In the game, you look for “stalls” – clogged blood vessels where blood is no longer flowing.  Stalls are a common hallmark of Alzheimer’s, and are linked to a severe reduction in blood flow in the brain.  However, if stalls are removed in mice, they regain some of the cognitive function, and other Alzheimer’s symptoms seem to decrease.

Stall Catchers is easy enough to learn, and we help you out in the beginning with a one minute tutorial on how to play! There is no way you can mess up the research.  We know how to extract research value from all your answers, right or wrong!

Playing Stall Catchers is a great and easy way to spend The Longest Day!  Contribute to Alzheimer’s research and ask people to sponsor you for each hour you play!  Collectively, Stall Catchers players can do in one hour what scientists do in a week! How cool is that?!

Here’s how to get started:
STEP 1: Register for The Longest Day and personalize your fundraising website!  Add a picture, reason why you are participating and info on Stall Catchers.
STEP 2: Ask for donations in support of your time on this research project!  Send emails and post on social media.  Create a Facebook Fundraiser through your fundraising website (if you need help with this, email aslund@alz.org!

STEP 3: Go to stallcatchers.com to setup your login and start playing! Stall Catchers tracks the number of hours and research you have contributed so be sure to share that cool detail when thanking all your donors!