My research interests cover a broad range of topics in the domain of aging and health, including cognition, dementia risk, stress, and emotion regulation. Much of my research is aimed at identifying risk and protective factors for dementia and mild cognitive impairment, and improving methods for the early detection of cognitive impairment. I’m particularly interested in how aspects of everyday experiences influence a person’s ability to memorize, reason and concentrate, and how these micro-level processes (e.g., everyday stress, affect, rumination) relate to long-term changes in mental, physical and cognitive health. My current work is in the area of Mobile Cognitive Health and centers on using smartphones for obtaining high precision measurements of cognitive function and for assessing subtle variations and changes in cognitive performance in the context of everyday life.