Computational Neuroscience

How are memories stored and retrieved? With Profs. Karl Deisseroth, Priya Rajasethupathy and colleagues at Stanford University, I developed computational tools to answer this question.

Stanford University

Hub neurons in memory retrieval

We found that information is stored as a small-world network, and discovered “hub neurons” that are preferentially recruited during memory retrieval. The work was published in Nature with me as co-first author.

Fluorescence extracted from two-photon images
Fluorescence extracted from in-vivo two-photon images of live, behaving mice.
Hub neurons in the hippocampus
Highly connected “hub” neurons from imaging the hippocampus of mice in various contexts.
BioPhysics and AIAll projects
  1. Rajasethupathy, P.*, Sankaran, S.*, Marshel, J.H.*, Kim, C.K., Ferenczi, E., Lee, S.Y., Berndt, A., Ramakrishnan, C., Jaffe, A., Lo, M., Liston, C. and Deisseroth, K. Projections from neocortex mediate top-down control of memory retrieval. Nature 526, 653–659, 2015. (*equal contribution) [paper]
  2. Tomer, R., Lovett-Barron, M., Kauvar, I., Andalman, A., Burns, V.M., Sankaran, S., Grosenick, L., Broxton, M., Yang, S. and Deisseroth, K. SPED light sheet microscopy: fast mapping of biological system structure and function. Cell 163(7), 1796–1806, 2015.