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Ann Hermundstad

received a PhD in Physics from the University of California in Santa Barbara (UCSB).  She was a postdoc in the group at Penn, working on problems in theoretical and computational neuroscience, focusing both on specific sensory pathways and integrated whole-brain studies.  She employed a range of theoretical, computational, and data-driven techniques to probe how different cellular architectures support and constrain emergent biological function.  Her work touched on a broad set of related questions that elucidate how resources are distributed across populations of cells, how local interactions shape information flow across the population, and how the structure of interactions adapts over time and in response to stimulus variations.  Current projects relate to population coding in the retina, visual perception of higher-order spatial statistics, olfactory processing, and structure-function relationships in the human brain.  Ann is currently a Group Leader at the Janelia Research Campus of the Howard Hughes Medical Institute. [ ]

Louis Kang

came to Penn as an MD/PhD student after an undergraduate degree at Harvard.  He studied the entorhinal grid system, which is believed to provide humans and other mammals with a spatial representation of their surroundings.  He uses and develops tools from theoretical physics to investigate how our brains make sense of and respond to our dynamic environments. Theoretical neuroscience forms one part of his overall mission to better understand human biology and pathology through quantitative analysis. He is currently a Miller Fellow at University of California, Berkeley. []

John Briguglio

came to Penn after an undergraduate degree at Carnegie-Mellon and was a graduate student in the Physics department.  He received a PhD for work on the visual and olfactory systems and is currently a postdoctoral fellow at the Janelia Research Campus of the Howard Hughes Medical Institute.

Xuexin Wei

was a graduate student in the psychology department.  He wrote his thesis on the organization of the grid system in the entorhinal cortex that supports our "sense of place", and on problems in visual perception and Bayesian decision making.   He is currently a postdoctoral fellow in theoretical neuroscience at Columbia University.

Kalina Slavkova

was an undergraduate at Penn who majored in physics and biology with a minor in math. Her past projects have focused on the structure of the human protein p38a, the function of the small-T protein in human papillomavirus 7, and the formulation of rule-based models and boolean networks of biological systems. Her senior thesis with the group investigated the categorization of objects in natural images as well as gist perception with intended applications in the study of artworks from different movements. She is currently a graduate student in physics at UT Austin.

Niral Desai

Niral Desai was an undergraduate at Penn majoring in Physics. His work explored the role of the entorhinal cortex and hippocampus in navigation.  He is currently a graduate student in Physics at the University of Texas, Austin.

Eli Pollock

Eli was an undergraduate at Penn studying physics and biophysics. He was interested in how complex biological systems give rise to coherent patterns and behaviors, and investigated computational neural models for spatial cognition.  He is currently a PhD student in Brain and Cognitive Science at MIT.

Kristina Simmons

Kristina Simmons was a graduate student in the Neuroscience Department. She used multi-electrode array experiments to study retinal adaptation to stimulus statistics.  Kristina is moving into a career in health policy.

Jan Homann

was a graduate student in the Physics Department and used experimental and theoretical approaches to study local microcircuits in the retina system.  He is currently a postdoc at Princeton University investigating information processing in the visual cortex.

John Beausang

John Beausang was a graduate student in the Physics Department. He has worked on a variety of experimental and theoretical problems in tethered particle motion and molecular motors.   John is presently a postdoc at Stanford.

Jason Prentice

Jason Prentice was a graduate student in the Physics Department working on problems in neuroscience. He worked on a variety of theoretical problems including location coding by place cells, and does multi-electrode array experiments.  He was a C.V. Starr Fellow in the Princeton Neurosciences Institute and is currently working in industry in Data Sciences.

Josh Merel

Josh Merel was an undergraduate in the Biological Basis of Behavior program.  His senior thesis involved two directions of research: (1) the statistics of shapes in natural scenes and the representation of shapes in Inferotemporal Cortex, and (2) possible algorithms for goal-directed navigation based on the representation of location by hippocampal place cells.  After  a Ph.D. in Computational Neuroscience at Columbia he moved to Google Deep Mind.

Pavel Konov

Pavel Konov was an undergraduate majoring in Philosophy and Physics.   He worked on population coding in the retina

Gasper Tkacik

was a postdoc in the lab who finished his PhD in Physics at Princeton University in 2007. He is studying how biological networks process information and has applied information theory to understand aspects of retinal processing, early morphogenesis in the fruit fly embryo, and signal transduction in cellular networks. His other research interests include the statistics of natural scenes, collective behaviors in biology, the dynamics of evolutionary adaptation and, recently, questions about the evolution of natural languages.  He is currently a professor and group leader at the Institute for Science and Technology, Austria.

Dutch Ratliff

was a graduate student in the lab.  His thesis was on theoretical models of retinal organization. He was a postdoc in the laboratories of Steve DeVries at Northwestern University and with Alapakkam Sampath at USC.  He is currently a freelance research scientist.

Patrick Garrigan

was a postdoc in the lab.  He worked on the organization of the cone mosaic and efficient coding in the retina.   He is currently a professor at St. Joseph’s University in the psychology department and works on problems in perception.

Bart Borghuis

worked on retinal structure and function. He then worked in the laboratories of Anthony Leonardo at Janelia Farms and Jon Demb at Yale, and is currently a professor at the University of Kentucky.

Prashant Purohit

worked on mechanics of DNA, including DNA looping. He is currently a professor at the School of Engineering and Applied Science at Penn.

Kevin Towles

worked on the DNA looping, including the first principles calculation of looping probability.                                                                            

Igor Kulic

worked on transport in the cytoplasm. He is currently at CNRS in Strasbourg, after his postdoctoral work in the lab of L Mahadevan (Harvard).

Kees Storm

worked on mechanical properties of DNA. He is currently a professor at TU Eindhoven.                                                                                                                               

Yi Chen

worked on repulsion of oppositely-charged colloidal objects.                                                                                                                                                    

J David Moroz

worked on a variety of problems in soft matter physics.                                                                                                                                                                   

Martin Zapotocky

is currently heading a research group at MPI Complex Systems in Dresden.                                                                                                                                                                   

Thomas R. Powers

has worked on the biophysics of membranes and vesicles. He is currently a professor at Brown University.                                                                                                                                                                                 

Eugene Wong

is currently a tenured professor at University of Western Ontario.