What does electrical stimulation of the brain (ESB) involve

A)  monitoring the electrical activity of the brain over time 
B)  destroying a piece of the brain via small electrodes that are carefully implanted 
C)  visualizing the three-dimensional structure of the brain 
D)  sending a weak current into a brain structure to activate that structure

Electrical Stimulation

The use of electrical impulses to induce a response in tissues, often used for therapeutic purposes or in research.

Brain Structure

The physical arrangement and organization of the various components of the brain.

Weak Current

A low intensity flow of electric charge, typically used in scientific experiments or medical therapies.