Complex sentence: In either case, these EEG measuring techniques allow one to non-invasively measure action potentials of groups of neurons within the brain using transducers called electrodes which are then amplified using differential amplifiers to measure potenial differences from one area of the scalp or brain to another.
Split into simpler sentences: In either case, these EEG measuring techniques allow one to non-invasively measure action potentials of groups of neurons within the brain using transducers called electrodes. The electrical signals from these electrode transducers are then amplified using differential amplifiers to measure potenial differences from one area of the scalp or brain to another.