Harris Lab
Lab Leaders
Tim Harris, PhD
Principle Investigator, Research Professor
Tim Harris received his Ph.D. from Purdue University in 1978. He spent the following 18 years at Bell Labs, Murray Hill, NJ. While at Bell, his work included high-sensitivity fluorescence and Raman scattering instrumentation, the characterization of quantum dots in collaboration with Lou Brus, the tapered fiber probe for Near-Field Microscopy, a collaboration with Eric Betzig, and many follow on applications of near field including the first reports of single molecule images and single quantum dot imaging and spectroscopy.
Austin Graves, PhD
Assistant Research Professor
Austin is a Research Assistant Professor in BME at Johns Hopkins, where he works close with the Harris Lab. Austin's lab is interested in understanding how the brain represents learning and memory as functional changes within complex networks of synapses and neurons, and how these processes are disrupted by pharmacological agents and models of neurological disease.
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Austin received his PhD in Neuroscience from Northwestern University, where he studied synaptic and intrinsic plasticity in hippocampus. As a postdoc, he worked on motor control in the Hantman and Dudman labs at Janelia. He joined Rick Huganir's lab in the Johns Hopkins Department of Neuroscience, where he imaged AMPA receptor dynamics underlying learning in vivo. He is also a Faculty member of the Kavli Neuroscience Discovery Institute at JHU.
Lab Members
Alexandra Cheng
PhD Student, BME
Alexandra is developing 3d printed fixtures to implant many chronic Neuropixels probes, as well as enabling wireless Neuropixels recording
Sai Koukuntla
PhD Student, BME
Sai is working on automatic spike sorting error correction, and developing methods to analyze high-density, multi-region neural recordings. He is co-advised by Adam Charles and Carlos Brody
Tate DeWeese
PhD Student, XDBio
Tate studies how exposure to psychedelics manifests as altered neural activity and social behavior, using multiple chronic Neuropixels probes throughout the brain.