Primary Investigator

William H. Warren

William Warren

Chancellor's Professor
Department of Cognitive, Linguistic and Psychological Sciences
Phone: 401-863-3980

Grad Students

Greg Dachner

Greg Dachner studies the visual information available to pedestrians in human crowds and how that guides locomotor behavior and crowd navigation. Using a combination of virtual reality, motion capture, and computer modeling, he demonstrates the movement dynamics of an individual in a crowd is dependent on what they can see. Before coming to Brown, he received his B.S. in Cognitive Science from the University of California, Merced.

Trenton Wirth

Trenton Wirth's current research concerns the experimental investigation of local neighborhood networks in human crowds. Before coming to Brown, he received his B.S. in Psychology and B.A. in Philosophy from the University of Cincinnati.

Brittany Baxter

Brittany Baxter is interested in the optimized outcomes during obstacles avoidance (e.g. total path length) and the visual information guiding such behaviour. She is currently investigating the influence of barriers, obstructing the travel path en route to a goal. The Dynamical Model of Online Steering (more can be found under the Research tab) includes obstacle avoidance of poles; the desire is to expand this to appropriately include barriers. Before coming to Brown, she received her MSc in Kinesiology and her BSc in Biology and Psychology at Wilfrid Laurier University, Canada.

Joey Bai

Jiuyang Bai studies microscopic models of pedestrian following using computer simulation and behavioral experiment in virtual reality. He is particularly interested in the phase transition of behavior dynamics as a function of crowd density. He received his B.S. in Psychology from Zhengzhou University in China, and M.S. in Cognitive and Behavioral Sciences from Illinois State University (mentored by J. Scott Jordan).

Meghan Willcoxon

Meghan Willcoxon studies self-organization in local neighborhoods of human crowds using behavioral experiments in virtual reality. Before coming to Brown, she received her B.A. in Cognitive Science at Vassar College.

Undergrad Students

Eugyoung (Eugy) Han - Lab Manager

Research Staff

Bianca Obiakor - Research Assistant
Nina Zhao - Research Assistant
Madavin Vong - Research Assistant
Shivani Nishar - Research Assistant


Arturo Cardenas - Lab Manager 2012-2015
Adam Hersko-RonaTas - Lab Manager 2015-2018
Ameyo Attila - Research Assistant 2015-2018