1. Hari, R. & Puce, A. MEG-EEG Primer. Oxford University Press, New York (2017).
2. Hämäläinen, M., Hari, R., Ilmoniemi, R. J., Knuutila, J. & Lounasmaa, O. V. Magnetoencephalography--theory, instrumentation, and applications to noninvasive studies of the working human brain. Rev. Mod. Phys. 65, 413-497 (1993).
3. Geselowitz, D. B. On the magnetic field generated outside an inhomogeneous volume conductor by internal current source. IEEE. Trans. Magn. MAG-6, 346-347. https://ieeexplore.ieee.org/document/1066765 (1970).
4. Pfeiffer, C., et al. A 7-channel high-Tc SQUID-based on-scalp MEG system. IEEE Trans. Biomed. Eng. 67, 1483-1489 (2020).
5. Riaz, B., Pfeiffer, C. & Schneiderman, J. F. Evaluation of realistic layouts for next generation on-scalp MEG: spatial information density maps. Sci. Rep. 7, 6974 (2017).
6. Boto, E., et al. Moving magnetoencephalography towards real-world applications with a wearable system. Nature 555, 657–661 (2018).
7. Knappe, S., Sander, T. & Trahms, L. Optically pumped magnetometers for MEG. In: Supek, S. & Aine, C. J. (eds). Magnetoencephalography. Second Edition. Springer Nature Switzerland AG, Cham, Switzerland, 1301-1312 (2019).
8. Miyazaki, T. & Tezuka, N. Giant magnetic tunneling effect in Fe/Al2O3/Fe junction. J. Magn. Magn. Mater 139, L231-L234 (1995).
9. Moodera, J. S., Kinder, L. R., Wong, T. M. & Meservey, R. Large magnetoresistance at room temperature in ferromagnetic thin film tunnel junctions. Phys. Rev. Lett. 74, 3273-3276 (1995).
10. Fujiwara, K., et al. Magnetocardiography and magnetoencephalography measurements at room temperature using tunnel magneto-resistance. Appl. Phys. Express 11, 023001. https://doi.org/10.7567/APEX.11.023001 (2018).
11. Hari, R., et al. IFCN-endorsed practical guidelines for clinical magnetoencephalography (MEG). Clin. Neurophysiol. 129, 1720-1747 (2018).
12. Kawamura, T., et al. Neuromagnetic evidence of pre- and post-central cortical sources of somatosensory evoked responses. Electroencephalogr. Clin. Neurophysiol. 100, 44-50 (1996).
13. Nakasato, N., et al. Cortical mapping using an MRI-linked whole head MEG system and presurgical decision making. Electroencephalogr. Clin. Neurophysiol. Suppl. 47, 333-341 (1996).
14. Ishida, M., et al. Awake state-specific suppression of primary somatosensory evoked response correlated with duration of temporal lobe epilepsy. Sci. Rep. 10, 15895 (2020).
15. Cardoso, S., et al. Magnetic tunnel junction sensors with pTesla sensitivity. Microsyst. Technol. 20, 793-802. https://doi.org/10.1007/s00542-013-2035-1 (2014).
16. Uchiyama, T. & Ma, J. Design and demonstration of novel magnetoencephalogram detectors. IEEE Trans. Magn., 55, 4400408. https://ieeexplore.ieee.org/document/4400408 (2019).
17. Lu, C. C. & Huang, J. A 3-axis miniature magnetic sensor based on a planar fluxgate magnetometer with an orthogonal fluxguide. Sensors (Basel) 15, 14727-14744 (2015).
18. Herbschleb, E. D., Kato, H., Makino, T., Yamasaki, S. & Mizuochi, N. Ultra-high dynamic range quantum measurement retaining its sensitivity. Nature Commun. 12, 306 (2021).
19. Nakasato, N., et al. Functional localization of bilateral auditory cortices using an MRI-linked whole head magnetoencephalography (MEG) system. Electroencephalogr. Clin. Neurophysiol. 94, 183-190 (1995).
20. Yu, H. Y., et al. Neuromagnetic separation of secondarily bilateral synchronized spike foci: report of three cases. J. Clin. Neurosci. 11, 644-648 (2004).
21. Scherg, M. & Buchner, H. Somatosensory evoked potentials and magnetic fields: separation of multiple source activities. Physiol. Meas. 14 Suppl 4A, A35-A39. (1993).
22. Nakasato, N. Biomagnetometry is warming up from liquid helium to room temperature. Clin. Neurophysiol. 132, 2666-2667 (2021).
23. Yuasa, S., Nagahama, T., Fukushima, A., Suzuki, Y. & Ando, K. Giant room-temperature magnetoresistance in single-crystal Fe/MgO/Fe magnetic tunnel junctions. Nat. Mater. 3, 868-871 (2004).
24. Iwasaki, M., et al. Somatosensory evoked fields in comatose survivors after severe traumatic brain injury. Clin. Neurophysiol. 112, 205-211 (2001).
25. Usubuchi, H. et al. Effects of contralateral noise on the 20-Hz auditory steady state response-magnetoencephalography study. PLoS One 9, e99457 (2014).
26. Kawase, T. et al. Impact of audio-visual asynchrony on lip-reading effects—Neuromagnetic and psychophysical study. PLoS One 11, 40 (2016).
27. Sarvas, J. Basic mathematical and electromagnetic concepts of the biomagnetic inverse problem. Phys. Med. Biol. 32, 11–22 (1987).
28. Kato, D. et al. Fabrication of magnetic tunnel junctions with amorphous CoFeSiB ferromagnetic electrode for magnetic field sensor devices. Appl. Phys. Express 6, 103004 (2013).
29. Tondra, M, et al. Picotesla field sensor design using spin-dependent tunneling devices. Appl. Phys. 83, 6688 (1998).
30. Fujiwara, K. et al. Detection of sub-nano-tesla magnetic field by integrated magnetic tunnel junctions with bottom synthetic antiferro-coupled free layer. Jpn. J. Appl. Phys. 52, 04CM07 (2013).
31. Deak, J. G., Zhou, Z, & Shen, W. Tunneling magnetoresistance sensor with pT level 1/f magnetic noise. AIP Adv. 7, 056676 (2017).
32. Fujiwara, K., et al. Fabrication of magnetic tunnel junctions with a bottom synthetic antiferro-coupled free layers for high sensitive magnetic field sensor device. J. Appl. Phys. 111, 07C710. https://doi.org/10.1063/1.3677266 (2012).
33. He, G., et al. PicoTesla magnetic tunneling junction sensors integrated with double staged magnetic flux concentrators. Appl. Phys. Lett. 113, 242401. https://doi.org/10.1063/1.5052355 (2018).
34. Zhang, X., et al. Influence of size parameters and magnetic field intensity upon the amplification characteristics of magnetic flux concentrators, AIP Adv. 8, 125222. https://doi.org/10.1063/1.5066271 (2018).