Examining cognitive function across the lifespan using a mobile application

Many studies conducted in a laboratory or university setting are limited by funding, personnel, space, and time constraints. In the present study, we introduce a method of data collection using a mobile application that circumvents these typical experiment administration issues. Using the application, we examined cross-sectional age differences in cognitive function. We obtained data from more than 15,000 participants and replicated specific patterns of age-related differences in cognition. Using a subset of these participants, we also examined the processing speed account of age-related cognitive differences, and the association of exercise and leisure activity with cognitive function across the lifespan. We discuss the relative advantages and disadvantages of data collection with a mobile application, and provide recommendations for the use of this method in research.

► The cognitive function across the lifespan was examined using a mobile application. ► Cognitive performance reached an asymptote during young adulthood, and then declined gradually. ► Processing speed mediates the relationship between age and cognitive performance. ► Exercise had a positive association with processing speed. ► Video game experience had different associations with younger and older adult’s memory and attention.