The Vision & Cognition Lab

at Johns Hopkins University


Enter

Welcome to the Vision & Cognition Lab!

Among other things, we're interested in the limits of visual attention and visual working memory, the psychophysics of numerical estimation, and the interfaces between vision and language. We maintain strong collaborative ties with the Laboratory for Child Development and the Visual Thinking Lab, as well as the larger Vision Sciences Group at JHU.

Learn More


People

Publications

Demos

Join Us

PI


Justin Halberda, Professor

Dr. Justin Halberda directs the Vision and Cognition lab, and co-directs the Laboratory for Child Development with Dr. Lisa Figenson. He currently holds appointments in the Department of Psychological and Brain Sciences (primary) as well as the Department of Cognitive Science. His recent work in this lab is focused on the organization of visual attention and working memory, psychophysical modeling of the human approximate number system, and the semantics of logical vocabulary (e.g., quantifiers).

Curriculum Vitae
231 Ames Hall
email: halberda@jhu.edu

Current Students


Tyler Knowlton, Lab Manager


Tyler graduated from Johns Hopkins in 2015 with a B.A. in Cognitive Science. His interests include language acquisition and processing, mental representation of grammar and meaning, philosophy of mind, and running the lab with an iron-fisted rule.

email: tknowlt2@jhu.edu

VCL Alumni


Hrag defended his dissertation, "Costs of Manipulating Information in Visual Working Memory" in July 2015. In it, he focused on the following questions: is the limit for manipulating information independent of that for storing information and are original representations updated or do they remain separate once they have been subjected to a given computation? To this end, he has developed a novel method - the Flicker paradigm - which allows for storage constraints to be studied within the context of how VWM is flexibly used in the real world. Next year, he'll be a Postdoctoral fellow under George Alvarez in Harvard's Vision Sciences Laboratory.

Hrag Pailian

Darko Odic


Dr. Darko Odic was a graduate student in the lab from 2009 to 2014. He defended his dissertation, "Objects and Substances in Vision, Language, and Development", in 2014. He's currently an Assistant Professor in the Department of Psychology at the University of British Columbia, where he is the PI of the Centre for Cognitive Development.

Check out his Personal Website


Dr. Hee Yeon Im defended her dissertation, "An exploration of ensemble visual processing through perception, attention, and memory", in 2013. Since then, she has worked as a Postdoctoral fellow in the Song lab at Brown University and is currently a Postdoctoral fellow in the Kveraga Lab at Harvard Medical School.

Hee Yeon Im

Melissa Libertus


Dr. Melissa Libertus was a Postdoctoral fellow in the lab from 2010-2013. Currently, she is an Assistant Professor in the Psychology department at University of Pittsburgh, where she directs the Kids' Thinking Lab.

Check out her Lab Website


Robert graduated from Johns Hopkins in 2013 with a B.S. in Computer Science and fearlessly managed the lab for 3 years. He is currently pursuing a joint MD/Ph.D. at the University of Flordia College of Medicine.

Robert Eisinger

Ryan Ly


Ryan graduated from Johns Hopkins with a B.A. in Neuroscience and an M.S.E. in Computer Science and served as the lab's inaugural manager. He is now pursuing a Ph.D. in Neuroscience at Princeton University.


☞ And countless undergraduate research assistants, programmers, and collaborators who've contributed to our success over the years! ☜