Extracellular recordings can easily measure spike discharge from a neuron with any suitably small electrode.
As if in reply, there was a flash of blue-white light, and bolts of lightning shot out from small electrodes on the figure's shoulders.
When a smaller electrode is used in conjunction with lower heat input, its versatility increases.
For this study, the researchers hooked small electrodes to the lower eyelids of 10 volunteers.
The heavy main electrodes are for the high current switching path, and a smaller third electrode serves as the trigger.
Tetrodes are constructed by bundling together 4 very small electrodes; each wire is generally less than 30 um in diameter.
These small electrodes allow the handling of small bioparticles.
The floating potential of the small electrode can be used to correct for changes in potential at the sheath edge of the large probe.
He describes how a small electrode would be implanted into a specific area of your brain, where it would deliver short pulses of electricity.
The smaller electrode also absorbs less heat from the spark and initial flame energy.