Transdermal electrical stimulation methods for modifying or inducing cognitive state

A method of enhancing attention, alertness, or mental focus, the method comprising:

• placing a first electrode of a wearable transdermal electrical stimulation (TES) applicator on a subject's skin on a temple region on a first side of the subject's body;
• placing a second electrode on the subject's skin in the mastoid region of the first side of the subject's body;
• activating the wearable TES applicator to deliver a pulsed, asymmetric, biphasic transdermal electrical stimulation having a duty cycle of greater than 10 percent, a frequency of 750 Hz or greater, and an intensity of greater than 5 mA;
• and
• enhancing attention, alertness or mental focus by applying the biphasic transdermal electrical stimulation between the first and second electrodes for 10 seconds or longer.

A method of enhancing a calm or relaxed mental state, the method comprising:

• placing a first electrode of a wearable transdermal electrical stimulation (TES) applicator on a subject's skin on a temple region on a first side of the subject's body;
• placing a second electrode on the back of the subject's neck above the vertebra prominens;
• activating the wearable TES applicator to deliver a pulsed, asymmetric, biphasic transdermal electrical stimulation having a duty cycle of greater than 10 percent, a frequency of 750 Hz or greater, and an intensity of greater than 5 mA;
• and
• enhancing a calm or relaxed mental state by applying the biphasic transdermal electrical stimulation between the first and second electrodes for 10 seconds or longer.