System and method for transcranial current loop brain stimulation

A device for electrical stimulation of a person's brain, the device comprising:

• a first conductor implantable through the person's skull at a first location and configured to have a subcutaneous portion over the skull and a suberanial portion which at least partially penetrates the skull to electrically couple with the brain;
• a second conductor implantable through the person's skull at a second location spaced-apart from the first location and configured to have a subcutaneous portion over the skull and a subcranial portion which at least partially penetrates the skull to electrically couple with the brain;
• an alternating current generator coupled to one of the first and second conductors, wherein the first and second conductors provide a conductive path through the skull in said two locations and the skull's high impedance completes a current loop which allows current to flow interior and exterior to the skull and through at least one stimulation target, wherein the first conductor comprises one implantable portion with a conductive coil and the second conductor comprises one implantable portion without a conductive coil, wherein the implantable portion without the conductive coil provides a conductive path through the skull.