What is tES?
Transcranial Electrical Stimulation (tES) is a collective term for various forms of electrical stimulation. TES consists of 2 types of electrical stimulation: direct current and alternating current stimulation.
Stimulation with direct current is called Transcranial Direct Current Stimulation (tDCS). It is a method in which a low direct current influences the functioning of the brain cells.
Alternating current stimulation can also be subdivided into different forms: Transcranial Alternating Current Stimulation (tACS), Transcranial Random Noise Stimulation (tRNS) and Transcranial Peak Noise Stimulation (tPNS).
Advanced versions of transcranial electrical stimulation use multiple electrodes so that the current can be more focused. This is called High Definition tES (HD-tES).
How is tES applied?
Two or more damp sponge electrodes are placed on the scalp and attached with a rubber band, a net bandage or are incorporated in an EEG cap. The position of the electrodes depends on the stimulation zone and the target of the stimulation.
Although tES is not painful, during the stimulation you will feel slight tingling on the skin under the electrode. TES has no serious side effects. During a TES session, the patient is sitting in a comfortable chair.
To achieve an effect, 2 to 3 stimulations per week are performed. Only after 4 to 5 sessions can it be evaluated whether the stimulation will influence the symptoms. A complete treatment consists of at least 8 to 10 stimulations. In chronic conditions, it is sometimes necessary to repeat these stimuli at regular intervals.
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