System for electrical stimulation

A system for providing transcranial brain stimulation to a user, the system comprising:

• a pair of electrodes including a first electrode and a second electrode;
• a base configured to conform to a forehead of the user and support the pair of electrodes in a predefined arrangement on the forehead of the user when the system is in use such that:
• (1) the first electrode is configured to be located substantially along a normal axis of a left dorsolateral prefrontal cortex of the user and the second electrode is configured to be located substantially along a normal axis of a right dorsolateral prefrontal cortex of the user
• (2) a spacing between the first electrode and the second electrode is 79±25 mm, and
• (3) the first electrode and the second electrode define an angle between a first plane tangent to a center point of a longitudinal axis of the first electrode and a second plane tangent to a center point of a longitudinal axis of the second electrode, the angle being in a range of 35 degrees to 115 degrees;
• and
• an electronics subsystem coupleable to the pair of electrodes.