IEEE Spectrum | Neuropixels Probe Recording Activity in Neurons @ieeespectrum | Uploaded October 2022 | Updated October 2024, 1 hour ago.
This simulation shows how two different types of neural implants record the activity of brain cells. A single electrode [metal spike at left descending from top of image] picks up the activity of neurons only at its tip. The Neuropixels probe [long strip with checkerboard pattern] detects activity with electrodes all along its length.

Learn more: spectrum.ieee.org/brain-implant