USC Reach Lab


Real Time Eating Activity & Children's Health Lab

Postdoctoral Research Associate Position Available

Real-Time Data Capture Methodologies

A particular focus of the USC REACH Lab is the development, testing, and application of real-time data capture methodologies to better understand the effects of environmental, social, and psychological factors on eating and physical activity.

Remote Sensing and Communication Technologies

Our projects use remote sensing and communication technologies such as smartphones, accelerometers, and GPS to deliver real-time electronic surveys (Ecological Momentary Assessment [EMA]), measure physical activity and eating, and monitor geographic location to better understand causes and correlates of health behavior.


We are also running several projects that integrate Bluetooth signals from external sensors such as asthma inhalers, air pollution monitors, and ultraviolet sensors to trigger smartphone-based EMA Surveys.

About Us

The Real-Time Eating Activity and Children’s Health (REACH) Lab at the University of Southern California is an interdisciplinary group of researchers and students led by Dr. Genevieve Dunton.

We seek to understand the etiology of health behaviors related to obesity, diabetes, and cardiovascular disease risk in children and adults, with particular focus on physical activity and eating. The rising rates of overweight and obesity in the United States pose serious health and economic concerns.

In order to combat these troublesome trends, it is necessary to identify potential leverage points for intervention and policy change to promote healthy lifestyle behaviors. Our work considers how policy, community, neighborhood, and school contexts can influence physical activity and diet either independently or through their impact on more proximal social and psychological factors. This work is guided by a social-ecological perspective of behavior change, which takes into account the interplay between environment, social, and individual variables.