A simplex method for the calibration of a MEG device

1. M. Hämäläinen, R. Hari, J. Knuutila, and O. Lounasmaa, Magnetoencephalography: theory, instrumentation and applications to non-invasive studies of the working human brain, Reviews of Modern Physics, vol. 65, pp. 413–498, 1993.10.1103/RevModPhys.65.413Search in Google Scholar

2. C. Del Gratta, V. Pizzella, F. Tecchio, and G. Romani, Magnetoencephalography-a noninvasive brain imaging method with 1 ms time resolution, Reports on Progress in Physics, vol. 64, pp. 1759–1814, 2001.10.1088/0034-4885/64/12/204Search in Google Scholar

3. C. P. Foley, M. N. Keene, H. J. M. ter Brake, and J. Vrba, Squid system issues. Wiley-VCH Verlag GmbH & Co KGaA, Weinheim, 2004.10.1002/3527603646.ch7Search in Google Scholar

4. A. Bruno and P. C. Ribeiro, Spatial fourier calibration method for multichannel squid magnetometers, Review of scientific instruments, vol. 62, pp. 1005–1009, 1991.10.1063/1.1142049Search in Google Scholar

5. J. R. Kraus, A. Matlacov, P. Volegov, M. Espy, K. Maharajh, and E. Flynn, Source localization precision of the superconducting imaging-surface meg system, Biomedizinische Technik/Biomedical Engineering, vol. 46, pp. 38–40, 2001.10.1515/bmte.2001.46.s2.38Search in Google Scholar

6. A. Pasquarelli, R. Rossi, M. D. Melis, L-Marzetti, A. Trebeschi, H. Muller, and S. Ernè, Argo 500: Operation of a helmet vector-meg, Neurology and Clinical Neurophysiology, vol. 97, p. : 16012682, 2004.Search in Google Scholar

7. A. Pasquarelli, R. Rossi, M. D. Melis, L-Marzetti, A. Trebeschi, H. Muller, and S. Ernè, Calibration of a vector-meg helmet system, Neurology and Clinical Neurophysiology, vol. 94, p. : 16012682, 2004.Search in Google Scholar

8. F. Chella, F. Zappasodi, S. D. Penna, and V. Pizzella, Calibration of a multichannel MEG system based on the Signal Space Separation method, Physics in Medicine and Biology, vol. 57, pp. 4855– 4870, 2012.10.1088/0031-9155/57/15/4855Search in Google Scholar

9. C. Wienbruch, Meg-calibration-v. 2.0, tech. rep., Department of Psychology, University of Konstanz, Germany, 2013.Search in Google Scholar

10. A. V. S. Rombetto, C. Granata and M. Russo, Multichannel system based on a high sensitivity superconductive sensor for magnetoencephalography, Sensors, vol. 14 (7), pp. 12114–12126, 2014.10.3390/s140712114Search in Google Scholar

11. J. A. Nelder and R. Mead, A simplex method for function minimization, Computer Journal, vol. 7 (4), pp. 308–313, 1965.10.1093/comjnl/7.4.308Search in Google Scholar

12. R. O’Neill, Function minimization using a simplex procedure, Journal of the Royal Statistical Society. Series C (Applied Statistics), vol. 20 (3), pp. 338–345, 1971.10.2307/2346772Search in Google Scholar

13. S. Baillet, J. Mosher, and R. Leahy, Electromagnetic brain mapping, Signal Processing Magazine, IEEE, vol. 18, pp. 14–30, 2001.10.1109/79.962275Search in Google Scholar

14. W. Kabsch, A solution for the best rotation to relate two sets of vectors, Acta Crystallographica, vol. 32, pp. 922–923, 1976.10.1107/S0567739476001873Search in Google Scholar