Selected Publications

MEG Summary Papers

    Hämäläinen M, Hari R, Ilmoniemi R, Knuutila J, Lounasmaa O (1993). Magnetoencephalography--theory, instrumentation, and applications to noninvasive studies of the working human brain. Rev Mod Phys, 65: 1-93. [PDF]

    Cohen D and Halgren E (2009). Magnetoencephalography. In: Squire LR (ed.) Encyclopedia of Neuroscience, volume 5, 615-622. [PDF]

Our Magnetically Shielded Room

    Cohen D, Schlapfer U, Ahlfors S, Hamalainen M, Halgren E. New Six-Layer Magnetically Sheilded Room For MEG. Biomag Proceedings 2002. [PDF]

MEG Studies

    Methodology

    Ahlfors SP, Simpson GV. (2004). Geometrical interpretation of fMRI-guided MEG/EEG inverse estimates. Neuroimage, 22(1), 323-32. (PubMed Entry)

    Goldenholz DM, Ahlfors SP, Hamalainen MS, Sharon D, Ishitobi M, Vaina LM, Stufflebeam SM. (2008). Mapping the signal-to-noise-ratios of cortical sources in magnetoencephalography and electroencephalography. Hum Brain Mapp [Epub ahead of print]. (PubMed Entry)

    Lin F.H., Witzel T., Hamalainen M.S., Dale A.M., Belliveau J.W., & Stufflebeam S.M. (2004). Spectral spatiotemporal imaging of cortical oscillations and interactions in the human brain. Neuroimage, 23(2), 582-595. (PubMed Entry)

    Lin F.H., Belliveau J.W., Dale A.M., & Hamalainen M.S. (2006). Distributed current estimates using cortical orientation constraints. Human Brain Mapping, 27(1), 1-13. (PubMed Entry)

    Lin, F.H., Witzel, T., Ahlfors, S.P., Stufflebeam, S.M., Belliveau, J.W. & Hamalainen, M.S. (2006). Assessing and improving the spatial accuracy in MEG source localization by depth-weighted minimum-norm estimates. Neuroimage, 31(1), 160-171. (PubMed Entry)

    Lin, F. H., Wald, L. L., Ahlfors, S. P., Hamalainen, M. S., Kwong, K. K. and Belliveau, J. W. (2006). Dynamic magnetic resonance inverse imaging of human brain function. Magn Reson Med 56(4): 787-802. (PubMed Entry)

    Wehner DT, Hämäläinen MS, Mody M, Ahlfors SP. (2008). Head movements of children in MEG: Quantification, effects on source estimation, and compensation. Neuroimage 40(2):541-50. (PubMed Entry)

    Clinical

    Hara K, Lin FH, Camposano S, Foxe DM, Grant PE, Bourgeois BF, Ahlfors SP, & Stufflebeam SM. Magnetoencephalographic mapping of interictal spike propagation: a technical and clinical report. (2007). AJNR Am J Neuroradiol.28(8), 1486-8.(PubMed Entry)

    Knake, S., Grant, P.E., Stufflebeam, S.M., Wald, L.L., Shiraishi, H., Rosenow, F., Schomer, D.L., Fischl, B., Dale, A.M. & Halgren, E. (2004). Aids to telemetry in the presurgical evaluation of epilepsy patients: MRI, MEG and other non-invasive imaging techniques. Suppl Clin Neurophysiol, 57, 494-502. (PubMed Entry)

    Knake S, Halgren E, Shiraishi H, Hara K, Hamer HM, Grant PE, Carr VA, Foxe D, Camposano S, Busa E, Witzel T, Hamalainen MS, Ahlfors SP, Bromfield EB, Black PM, Bourgeois BF, Cole AJ, Cosgrove GR, Dworetzky BA, Madsen JR, Larsson PG, Schomer DL, Thiele EA, Dale AM, Rosen BR, & Stufflebeam SM. (2006). The value of multichannel MEG and EEG in the presurgical evaluation of 70 epilepsy patients. Epilepsy Res.69(1), 80-86. (PubMed Entry)

    Shiraishi, H., Ahlfors, S.P., Stufflebeam, S.M., Takano, K., Okajima, M., Knake, S., Hatanaka, K., Kohsaka, S., Saitoh, S., Dale, A.M. & Halgren, E. (2005). Application of magnetoencephalography in epilepsy patients with widespread spike or slow-wave activity. Epilepsia, 46(8), 1264-1272. (PubMed Entry)

    Shiraishi, H., Stufflebeam, S.M., Knake, S., Ahlfors, S.P., Sudo, A., Asahina, N., Egawa, K., Hatanaka, K., Kohsaka, S., Saitoh, S., Grant, P.E., Dale, A.M. & Halgren, E. (2005). Dynamic statistical parametric mapping for analyzing the magnetoencephalographic epileptiform activity in patients with epilepsy. J Child Neurol, 20(4), 363-369. (PubMed Entry)

    Basic Research on Brain Function

    Ahveninen, J., Jaaskelainen, I.P., Raij, T., Bonmassar, G., Devore, S., Hamalainen, M., Levanen, S., Lin, F.H., Sams, M., Shinn-Cunningham, B.G., Witzel, T. & Belliveau, J.W. (2006). Task-modulated "what" and "where" pathways in human auditory cortex. Proc Natl Acad Sci U S A. (PubMed Entry)

    Ahveninen, J., Lin, F. H., Kivisaari, R., Autti, T., Hamalainen, M., Stufflebeam, S., Belliveau, J. W. and Kahkonen, S. (2007). "MRI-constrained spectral imaging of benzodiazepine modulation of spontaneous neuromagnetic activity in human cortex." Neuroimage. (PubMed Entry)

    Bar, M., Kassam, K.S., Ghuman, A.S., Boshyan, J., Schmidt, A.M., Dale, A.M., Hamalainen, M.S., Marinkovic, K., Schacter, D.L., Rosen, B.R. & Halgren, E. (2006). Top-down facilitation of visual recognition. Proc Natl Acad Sci U S A, 103(2), 449-454. (PubMed Entry)

    Ciesielski, K.T., Hamalainen, M.S., Lesnik, P.G., Geller, D.A. & Ahlfors, S.P. (2005). Increased MEG activation in OCD reflects a compensatory mechanism specific to the phase of a visual working memory task. Neuroimage, 24(4), 1180-91. (PubMed Entry)

    Ciesielski, K.T., Hamalainen, M.S., Geller, D.A., Wilhelm, S., Goldsmith, T.E. and Ahlfors, S.P. (2007). "Dissociation between MEG alpha modulation and performance accuracy on visual working memory task in obsessive compulsive disorder." Hum Brain Mapp. 8(12), 1401-1414. (PubMed Entry)

    Dhond, R.P., Witzel, T., Dale, A.M. & Halgren, E. (2005). Spatiotemporal brain maps of delayed word repetition and recognition. Neuroimage, 28(2), 293-304. (PubMed Entry)

    Dhond, R. P., Witzel, T., Dale, A. M. and Halgren, E. (2007). "Spatiotemporal cortical dynamics underlying abstract and concrete word reading." Hum Brain Mapp 28(4): 355-62. (PubMed Entry)

    Frye RE, Fisher JM, Witzel T, Ahlfors SP, Swank P, Liederman J, Halgren E. (2008). Objective phonological and subjective perceptual characteristics of syllables modulate spatiotemporal patterns of superior temporal gyrus activity. Neuroimage, 40(4):1888-1901. (PubMed Entry)

    Gow DW Jr, Segawa JA, Ahlfors SP, Lin FH. (2008). Lexical influences on speech perception: a Granger causality analysis of MEG and EEG source estimates. Neuroimage, 43(3):614-23. (PubMed Entry)

    Jaaskelainen, I. P., Ahveninen, J., Bonmassar, G., Dale, A. M., Ilmoniemi, R. J., Levanen, S., Lin, F. H., May, P., Melcher, J., Stufflebeam, S., Tiitinen, H. & Belliveau, J. W. (2004). Human posterior auditory cortex gates novel sounds to consciousness. Proc Natl Acad Sci U S A, 101(17):6809-14. (PubMed Entry)

    Jones, S.R., Pritchett, D.L., Stufflebeam, S.M., Hamalainen, M. and Moore, C.I. (2007). "Neural correlates of tactile detection: a combined magnetoencephalography and biophysically based computational modeling study." J Neurosci 27(40): 10751-64. (PubMed Entry)

    Marinkovic, K. (2004). Spatiotemporal dynamics of word processing in the human cortex. Neuroscientist, 10(2), 142-52. (PubMed Entry)

    Marinkovic K., Cox B., Reid K., & Halgren E. (2004). Head position in the MEG helmet affects the sensitivity to anterior sources. Neurol Clin Neurophysiol.2004:30. (PubMed Entry)

    Meeren HK, Hadjikhani N, Ahlfors SP, Hamalainen MS, de Gelder B. (2008). Early category-specific cortical activation revealed by visual stimulus inversion. PLoS ONE, 3(10):e3503. (PubMed Entry)

    Mody M, Wehner DT, Ahlfors SP. (2008). Auditory word perception in sentence context in reading-disabled children. Neuroreport, 19(16):1567-71. (PubMed Entry)

    Moon, S. Y., Barton, J. J., Mikulski, S., Polli, F. E., Cain, M. S., Vangel, M., Hamalainen, M. S. and Manoach, D. S. (2007). "Where left becomes right: A magnetoencephalographic study of sensorimotor transformation for antisaccades." Neuroimage, 36(4):1313-23. (PubMed Entry)

    Sharon, D., Hamalainen, M.S., Tootell, R.B., Halgren, E. and Belliveau, J.W. (2007). "The advantage of combining MEG and EEG: comparison to fMRI in focally stimulated visual cortex." Neuroimage 36(4): 1225-35. (PubMed Entry)

    Wehner D.T., Ahlfors S.P., & Mody M. (2007). The influence of semantic processing on phonological decisions in children and adults: a magnetoencephalography (MEG) study. J Speech Lang Hear Res.50(3), 716-731. (PubMed Entry)

    Wehner D.T., Ahlfors S.P., & Mody M. (2007). Effects of phonological contrast on auditory word discrimination in children with and without reading disability: A magnetoencephalography (MEG) study. Neuropsychologia. 45(14), 3251-3262. (PubMed Entry)