Johns Hopkins, Harris high-capacity electrophysiology lab
Official site → Baltimore, MD, USA
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Johns Hopkins Harris lab
The current lab website places the Harris laboratory in Johns Hopkins University’s Department of Biomedical Engineering. The university faculty profile identifies Tim Harris as a research professor who shares his time with the HHMI Janelia Research Campus. The lab describes engineering and neuroscience work on high-capacity electrophysiology in behaving animals.
This is separate from the Johns Hopkins APL prosthetic-limb group. A common university name does not assign Neuropixels work to APL or prosthetic-limb results to this laboratory.
Cataloged work
- Neuropixels 2.0 Quad Base hardware and its July 2026 mouse sensorimotor preprint. The primary affiliations include Johns Hopkins neuroscience and biomedical engineering, Janelia and imec. This link does not make one laboratory the sole owner of the collaboration.
- NXT / planned NP3.0 prototype. The official project source identifies Harris as PI and Dan O’Connor as co-investigator. Prototype access and 2027 purchase availability remain plans.
Claims and limits
The faculty profile describes capacities of 10,000-20,000 neurons in rodents and 30,000-50,000 in non-human primates. These are broad institutional platform statements, not a participant-level dataset in the fetched page. They are not used as the yield of the six-mouse Quad Base preprint or as proof of chronic tracking across those neurons.
This brief does not assert human clinical qualification, complete brain coverage, therapeutic outcomes or a stimulation protocol. Precise map coordinates are omitted; the department’s address does not establish a specific laboratory location.