Patent Document ID: 5568816
Application ID: 08276700
Patent Flag: 1

Claim One:
1. A method of improving the resolution of data recorded from a plurality of electroencephalograph (EEG) electrodes removably and electrically connected to the scalp of a subject including the steps of: (a) amplifying brain waves detected at the electrodes, converting the amplified brain waves into digital data and entering the data into a computer system means to analyze the data; (b) in the computer system means forming a finite element transformation matrix based upon an imaginary division of the subject's head into three dimensional finite elements, the matrix being calculated based upon data regarding the subject's head shape, size and tissue thicknesses; (c) determining the conductivity of each finite element based upon the thickness of each finite element and conductivity values for relevant portions of a head; (d) measuring physical locations of the electrodes on the subject; and (e) entering the electrode locations measured in (d) and conductivities determined from (c) into the computer system means to analyze the recorded brain wave data and to provide a computation of outer brain surface electrical potential distribution.