• More than 100,000 people have taken the Panamath test.

    - Justin Halberda, PhD
    Johns Hopkins University

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Who's Who at Panamath

Justin Halberda

Justin Halberda is an associate professor in the Department of Psychological and Brain Sciences at the Johns Hopkins University. There, he runs two labs: one focused on child development and the other on vision and cognition. He earned his Ph.D. in cognitive psychology from NYU and undergraduate degrees in psychology, biochemistry, philosophy, and physical chemistry from the College of Charleston. His various research projects include: how we are able to see many similar items in a scene as a single group and how we encode information about the group; the foundations of mathematical thinking in infants and children; how children learn the meanings of quantifier words like "most" and "more"; and how language understanding connects with the rest of the mind.

Ryan Ly

Ryan Ly is the research coordinator at the Vision & Cognition Lab at the Johns Hopkins University. In addition, he is the project manager for Panamath and coordinated both the programming team and the website team. He has recently earned a master's degree in computer science and a bachelor's degree in neuroscience from Johns Hopkins, and is currently pursuing a Ph.D. in neuroscience at Princeton University. He is interested in studying many aspects of the mind and brain, in particular, visual attention, numerical cognition, computational neuroscience, learning and memory, and novel ways of uniting neuroscience and computer science.

Robert Eisinger

Robert Eisinger is an undergraduate student at the Johns Hopkins University studying computer science, mathematics, computer integrated surgery, and pre-medical sciences. He is currently the head research coordinator at the Vision & Cognition Lab and has independently developed several mobile applications. He enjoys questioning fundamental processes taking place in the mind, with special attention to the vision-related processes - especially subitizing, the approximate number system, visual working memory and related capacities, representation of number, counting, and image parsing and extraction.

The Programming Team

While Panamath may seem simple, the behind-the-scenes work was not. The programming team put in much effort to create the software and make all the calculations work.

  • Gustavo Barcena
  • Alex Blum
  • Heshan Li
  • Sharon Li
  • David Shen
  • Joshua Smith
  • Shaopeng Wang
  • Blaise Watson
  • Luwel Zhou

Website Design

From layout and content to licensing, the web design team at Panamath collaborated to transform the site into what you see now.

  • Amy Chang
  • Tushar Dalvi
  • Mohit Dia
  • Abby Fisher
  • Alane Lim
  • Shane Steinert-Threlkeld
  • Jessica Summers
  • Derrick Tittsworth
  • Hieu Tran
  • Srikanth Veeraraghavan