Stall Catchers is an online game used for Alzheimer’s research. Please bring your own laptop, tablet, or smartphone! (Laptops and tablets preferred.) Part of SciStarter’s 2.50 Million Acts of Science for CitizenScience Month In Stall Catchers, we will “catch” stalls by analyzing movies of mouse brains and scoring blood vessels as “flowing” or “stalled”. The game is easy to learn, and we’ll be guided through a tutorial in the beginning! And even if we get a couple of questions wrong – don’t worry. Each vessel will be seen by other citizen scientists, so we can figure out the right answers together. Today, there is no treatment for Alzheimer’s. The Stall Catchers team and researchers at Cornell University aim to change that. They’re focusing on one aspect of the disease: reduced blood flow in the brain. It’s a symptom known for years, but until now, nobody has known why it happens. The researchers discovered that blood vessel clogs, or stalls, are responsible for the reduced blood flow in mice with Alzheimer’s. By reducing the number of stalls, the lab was able to restore memory and reduce other cognitive symptoms in mice. But to fully understand how stalls contribute to Alzheimer’s and discover potential treatment targets, they need to sift through a large amount of data. They need our keen eyes for that – even the most powerful computer technologies can’t do that accurately enough yet. Without the help of the crowd, this process could take decades. With our help, they could potentially find an effective treatment for Alzheimer’s disease in just a few years – quick enough to make a difference in the lives of people who have the disease now.