A new technique that allows scientists to enhance or depress activity in a specific brain area is

(a) Transcranial magnetic stimulation (TMS)
(b) Electroencephalograph (EEG)
(c) Electric Stimulation of the brain (ESB)
(d) None
✅ Correct option: (a) Transcranial magnetic stimulation (TMS)
Explanation: TMS uses magnetic fields to temporarily change activity in targeted brain regions.