Greg is a doctoral student, working with Gretchen C. Daily and James Gross, in the department of psychology. Greg is working to define and quantify “psychological ecosystem services” by developing methods to investigate the links between nature experiences and a person's psychological well-being. Using a variety of approaches, he is measuring the impacts of nature experience on human cognitive function and mental health, while exploring effective means with which these benefits can best be incorporated into conservation strategies. In addition to the experimental work that is centered on the verification of psychological ecosystem services, Greg is developing a theory for the causal mechanisms that may be responsible for their existence. In collaboration with the Natural Capital Project, Greg's research aims to provide a framework for predicting and mapping psychological ecosystem services. Spatial modeling of these services will inform decisions in a variety of contexts, including urban planning and optimizing access to nature in a rapidly urbanizing world.