| abstract |
More particularly, the present invention relates to a method of measuring a bioelectrical signal using a conductive hydrogel. Specifically, a hydrogel precursor composition is coated on a scalp, irradiated with visible light by an optical scanner, converted into a hydrogel, It is possible to accurately and easily measure the bioelectric signal even when the electrode is adhered to the scalp in spite of the presence of obstructing factors such as scalp hair or keratin, , No residue is left on the scalp when the electrode is removed after measurement. |