Lumosity is a company that provides online tools for people to improve their cognitive function. The company’s LPI is a measure of how well someone’s brain is working. Lumosity’s LPI was first released in 2009 and has been used to measure cognitive function in people of all ages. The LPI can be used to track changes in mental ability over time, as well as identify any areas of improvement. The Lumosity LPI can be used to track changes in mental ability over time, as well as identify any areas of improvement.