By Topic

Method to reduce blur distortion from EEG's using a realistic head model

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
J. Le ; EEG Syst. Lab., San Francisco, CA, USA ; A. Gevins

A mathematical procedure, called deblurring, was developed to reduce spatial blur distortion of scalp-recorded brain potentials due to transmission through the skull and other tissues. Deblurring estimates potentials at the superficial cerebral cortical surface from EEGs recorded at the scalp using a finite-element model of each subject's scalp, skull, and cortical surface constructed from their magnetic resonance images (MRIs). Simulations indicate that deblurring is numerically stable, and a comparison of deblurred data with a direct cortical recording from a neurosurgery patient suggests that the procedure is valid. Application of deblurring to somatosensory evoked potential data recorded at 124 scalp sites suggests that the method greatly improves spatial detail and merits further development.

Published in:

IEEE Transactions on Biomedical Engineering  (Volume:40 ,  Issue: 6 )