Clinical Neurophysiology
Volume 110, Issue 10 , Pages 1755-1763 , 1 October 1999

Isolation of epileptiform discharges from unaveraged EEG by independent component analysis

  • K. Kobayashi

      Affiliations

    • Department of Child Neurology, Okayama University Medical School, 5-1 Shikata-cho 2-chome, Okayama 700-8558, Japan
    • Montreal Neurological Institute and Hospital, 3801 University Street, Montreal, Quebec, Canada H3A 2B4
    • Corresponding Author InformationCorresponding author. Tel.: +81-86-235-7372; fax: +81-86-235-7377
  • ,
  • C.J. James

      Affiliations

    • Montreal Neurological Institute and Hospital, 3801 University Street, Montreal, Quebec, Canada H3A 2B4
  • ,
  • T. Nakahori

      Affiliations

    • Department of Child Neurology, Okayama University Medical School, 5-1 Shikata-cho 2-chome, Okayama 700-8558, Japan
  • ,
  • T. Akiyama

      Affiliations

    • Department of Child Neurology, Okayama University Medical School, 5-1 Shikata-cho 2-chome, Okayama 700-8558, Japan
  • ,
  • J. Gotman

      Affiliations

    • Montreal Neurological Institute and Hospital, 3801 University Street, Montreal, Quebec, Canada H3A 2B4

,Accepted 11 May 1999.

References 

  1. Achim A, Richer F, Saint-Hilaire JM. Methodological considerations for the evaluation of spatio-temporal source models. Electroenceph clin Neurophysiol. 1991;79:227–240
  2. Bell AJ, Sejnowski TJ. An information-maximization approach to blind separation and blind deconvolution. Neural Comput. 1995;7:1129–1159
  3. Comon P. Independent component analysis, a new concept?. Signal Processing. 1994;36:287–314
  4. Cuffin BN, Cohen D, Yunokuchi K, Maniewski R, Purcell C, Cosgrove GR, et al. Tests of EEG localization accuracy using implanted sources in the human brain. Ann Neurol. 1991;29:132–138
  5. Hyvärinen A, Oja E. A fast fixed-point algorithm for independent component analysis. Neural Computation. 1997;9:1483–1492
  6. Kaiser HF. The varimax criterion for analytic rotation in factor analysis. Psychometrika. 1958;23:187–200
  7. Koles ZJ, Lind JC, Soong ACK. Spatio-temporal decomposition of the EEG: a general approach to the isolation and localization of sources. Electroenceph clin Neurophysiol. 1995;95:219–230
  8. Lagerlund TD, Sharbrough FW, Jack CR, Erickson BJ, Strelow DC, Cicora KM, et al. Determination of 10-20 system electrode locations using magnetic resonance image scanning with markers. Electroencepha clin Neurophysiol. 1993;86:7–14
  9. Makeig S, Jung TP, Bell AJ, Ghahremani D, Sejnowski TJ. Blind separation of auditory event-related brain responses into independent components. Proc Natl Acad Sci USA. 1997;94:10979–10984
  10. Nunez PL, Katznelson RD. Electric Fields of the Brain: The Neurophysics of EEG. New York: Oxford University Press; 1981;
  11. Nuwer MR, Comi G, Emerson R, Fuglsang-Frederiksen A, Guérit JM, Hinrichs H, et al. IFCN standards for digital recording of clinical EEG. Electroenceph clin Neurophysiol. 1998;106:259–261
  12. Press WH, Teukolsky SA, Vetterling WT, Flannery BP. Numerical Recipes in C. The Art of Scientific Computing. 2. Cambridge, UK: Cambridge University Press; 1995;
  13. Rush S, Driscoll DA. EEG electrode sensitivity-an application of reciprocity. IEEE Trans Biomed Eng. 1969;BME-16:15–22
  14. Scherg M, Von Cramon D. Two bilateral sources of the late AEP as identified by a spatio-temporal dipole model. Electroenceph clin Neurophysiol. 1985;62:32–44
  15. Vigário RN. Extraction of ocular artefacts from EEG using independent component analysis. Electroenceph clin Neurophysiol. 1997;103:395–404

PII: S1388-2457(99)00134-0

Clinical Neurophysiology
Volume 110, Issue 10 , Pages 1755-1763 , 1 October 1999