EEG spatial enhancement method and system
AssigneeSAM Technology, Inc.
InventorsAlan S. Gevins, Jian Le
Life of this patent
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Abstract
In an electroencephalographic (EEG) system and method the subject's brain waves are recorded using electrodes removably connected to the scalp. The spatial resolution may be improved, in one embodiment, by "Deblurring", based on digital computer processing measurements of the positions of the electrodes; measurements of the subject's head size, shape, scalp thickness, skull thickness and brain shape; and estimates of the conductivity of the skull, scalp and cerebral spinal fluid.
Claims13
The method of obtaining and analyzing data recorded from a plurality of electroencephalograph (EGG) 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 computer system means to analyze the data;
- (b) measuring a thickness of the skull of the subject, the thickness of the scalp of the subject and the head shape of the subject;
- (c) measuring physical locations of the electrodes on the scalp of the subject;
- (d) estimating an electrical conductivity of the skull, scalp and cerebral spinal fluid of the subject;
- and
- (e) entering measurements derived from (b), the electrode locations derived from (c) and the conductivity estimate derived from (d) into the computer system means to analyze the entered brain wave data.
Dependencies are inferred from the claim text.