Neuralink and the Brain's Magical Future - Wait But Why

By the way, you can listen to a neuron fire here (what you're actually hearing is the electro-chemical firing of a neuron, converted to audio). Some electrodes want to take the relationship to the next level and will go for a technique called the patch clamp, whereby it'll get rid of its electrode tip, leaving just a tiny little tube called a glass pipette,21 and it'll actually directly assault a neuron by sucking a "patch" of its membrane into the tube, allowing for even finer measurements:39 A patch clamp also has the benefit that, unlike all the other methods we've discussed, because it's physically touching the neuron, it can not only record but stimulate the neuron,22 injecting current or holding voltage at a set level to do specific tests (other methods can stimulate neurons, but only entire groups together). Finally, electrodes can fully defile the neuron and actually penetrate through the membrane, which is called sharp electrode recording. If the tip is sharp enough, this won't destroy the cell--the membrane will actually seal around the electrode, making it very easy to stimulate the neuron or record the voltage difference between the inside and outside of the neuron. But this is a short-term technique--a punctured neuron won't survive long.