System and method for non-invasive brain stimulation of cognitive enhancement

A non-invasive closed-loop transcranial electrical stimulation (tES) system, comprising:

• a stimulator configured to generate transcranial electrical current to a head of a subject;
• and
• a tES computing device, comprising at least one processor in communication with at least one memory device, and the at least one processor programmed to:
• receive neuroelectrical signals acquired from the head of the subject while being stimulated with the transcranial electrical current;
• and
• exogenously modify brain activities of the subject by the transcranial electrical current based on endogenous neural control mechanisms of the subject via a control loop having the neuroelectrical signals as reference signals to the stimulator.