Completed Brain & Nervous System Psychology & Behaviour

Transforming brain recordings with next-generation probes

In plain English

AI plain-English summary

A new generation of silicon probes can now record from hundreds to thousands of individual neurons at once, far surpassing older electrodes that captured only a handful of cells. This matters because understanding how the brain works—how it processes sensory information, forms memories, or goes awry in disease—requires observing many neurons firing together in real time. Existing recording tools have been a bottleneck: they sample too few cells to reveal the large-scale neural circuits that underlie behaviour. The Neuropixels probes solve that, but the hardware and software to use them widely do not yet exist. If this project succeeds, it will deliver the complete package: open-source recording equipment, analysis software, training for researchers, and new probe designs for wireless use in freely moving animals and for combining electrical recording with optogenetics. The team will also build a tool that automatically identifies brain regions from electrical signals alone. This is fundamental neuroscience infrastructure. It will not directly change a patient’s life tomorrow, but it will let labs worldwide ask questions about neural computation that were previously impossible—much as the development of the patch-clamp technique or fMRI once opened entirely new fields of inquiry.

View original technical description
Thanks to the Wellcome Trust and other leading international institutions, we have developed and proved the viability of a new generation of recording probes that will transform electrophysiology. These “Neuropixels” probes transcend past approaches, recording hundreds to thousands of neurons simultaneously. Several key steps are now necessary to maximize the impact of this new technology, enabling its widespread use in the neuroscience community. We must develop radically new recording equipment and software, provide training, and build a collaborative community of users (Aim 1). To allow this community to fully exploit the potential of this technology, we must extend it to a larger range of applications: multi-shank probes, wireless recording for freely moving animals, and optrodes for use with optogenetics (Aim 2). Meanwhile, we will obtain ground-truth data to calibrate error rates, and begin the development of a tool to automatically identify brain regions based on electrophysiological characteristics (Aim 3). This project integrates software and hardware engineering, fabrication efforts, neurophysiology tests, and behavioral and anatomical techniques. It thus requires a collaboration between laboratories with different skill sets, and a unique nanoelectronics research partner, IMEC. The results of this collaboration will transform the field of neuroscience.

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Researchers

Matteo Carandini (EPMC Awardee)

Related Research

Grants with similar aims, by meaning.

iPROBE: in-vivo Platform for the Real-time Observation of Brain Extracellular activity
Photonic Neuropixels probes for brain reading and writing GBP
Recording from one million neurons
High Spatial Resolution 3D Probes for Neurobiology Applications
Large scale neuronal recording and stimulation in individual and socially interacting primates

Original classification

Collaborative Award in Science

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