nayana-c1.867c992ae9100904cc61c84591adf0f8f863e0387e30f0d0dbc86640e9f50a1a.en.train.309831

The task

What is the primary technique used to isolate activity related to a specific cognitive process in EEG studies? A. To increase the amplitude of the EEG signal B. To look for activity that is both time-locked and phase-locked to a specific event C. To use magnetic fields to detect neuronal activity D. To focus on high-level cognitive functions only Return only the single uppercase letter of the correct option.