PURPOSE: A method and system for adjusting a brain potential through a network is provided to adjust a brain potential of a user by enabling the user who wants to adjust a brain potential and to directly select brain potential adjustment information. CONSTITUTION: A web browser of a client is executed(201). In case of selecting a web site for providing brain potential adjustment information, a user is connected to information providing server(203). The information providing server judges whether the user selects a plurality of brain potential adjustment information catalogs(205). The user selects brain potential adjustment information suitable for the present mental state(207). A brain potential adjustment information file transmission unit of the information providing server transmits a brain potential adjustment information file selected by the user to the client(209). It is judged whether the user makes a request for cutting off a listening(211). The user searches other information, which a service provider provides on a web page(213).
METHOD AND SYSTEM FOR CONTROLLING ELECTROENCEPHALOGRAPH THROUGH NETWORK