Recent Publications

More Publications

  • Network Theories.

    Details PDF

  • Social network analysis of stakeholder networks from two successful community-based obesity prevention interventions.

    Details PDF

  • Eating with others and meal location are differentially associated with nutrient intake by sex: The Diabetes Study of Northern California (DISTANCE).

    Details PDF

  • Impacts of adolescent and young adult civic engagement on health and socioeconomic status in adulthood.

    Details PDF

  • Development and testing of a survey to assess knowledge, engagement, and social network characteristics of community stakeholders involved in childhood obesity prevention.

    Details PDF

  • The intergenerational transmission of obesity: The role of time preferences and self-control.

    Details PDF

  • Time Preferences and Physical Activity: Insights from Behavioral Economics.


  • Associations between social network characteristics, cognitive function, and quality of life among residents in a dementia special care unit: A pilot study.

    Details PDF

  • Economic Preferences and Fast Food Consumption in US adults: Insights from Behavioral Economics.

    Details PDF

  • Are school meals a viable and sustainable tool to improve healthy diet among children? A cross-national comparative perspective.

    Details PDF


  • Overview

    I am interested in evaluating how individuals' social relationships and interactions shape their health behaviors. For example, how do a person's changing set of relationships with people in their lives affect their health-related decisions, physical health, and mental health? Exploring how social ties to others at a given stage of one's life can shape one's future prospects would help address the question of, 'How does who you know when you were 5 years old affect your health at age 55?'

  • Identifying Mechanisms of Peer Influence on Youth Weight-Related Behaviors

    Pediatric obesity has increased two- to three-fold since the 1970’s and continues to be a major public health concern. The proposed research on adolescent school-based social networks will uniquely identify leverage points that can be exploited to improve interventions targeting physical activity, screen time, and dietary intake. We anticipate that next generation interventions will be able to use the information obtained from this study to improve their ability to prevent excess weight gain in youth thereby reducing the prevalence of related health risk factors and co-morbidities. NICHD R01HD086259-OIA1, Co-Investigator. James Kitts & John Sirard, Co-PIs

  • Social Network Analysis of Puberty, Activity Behaviors, and Health Disparities

    Activity behaviors change dramatically across adolescence, as youth experience the overt physical changes of puberty and begin to make decisions about their social settings that will impact their current and future health. In general, physical activity levels decline (especially in girls and racial/ethnic minority populations), screen time spent with televisions, video games, and computing devices increases, and sleep is truncated. Further investigation is needed to evaluate pathways through which adolescent activity behaviors, relationship environments, and pubertal development may interact to shape later cardiometabolic risks and racial/ethnic risk disparities; this will inform the design of new interventions that leverage social ties to interrupt the development of pre-disease pathways during the life course. NINR 1R21NR017154-01A1, Mark Pachucki & Lindsay Hoyt, Co-PIs

  • Measurement of social networks

    Using wearable sensor and other passive technologies to measure social relationships and their sequelae in ways that complement (and sometimes challenge) prior self-report or observational approaches to understanding social structure. In what ways does precise quantification of interactions provide new insights into social dynamics? In which cases does an individual's own perceptions of their relationships provide useful information?


I am an instructor for the following courses at University of Massachusetts, Amherst:

I am always happy to write letters of recommendation for students. My policy on letters is here.


I welcome research partnerships that relate to social networks, culture, and health across the lifecourse, and am a firm believer in team-based science. I collaborate broadly with colleagues and students - I hold the view that working on problems from multiple perspectives advances scientific progress.

I am an core faculty affiliate of the UMass Computational Social Science Institute, member of the Umass Institute of Diversity Sciences health disparities working group, and affiliate of the UMass Center for Community Health Equity Research.

Curriculum Vitae