Invited review Publication criteria for evoked magnetic fields of the human brain: A proposal Isamu Ozaki a,⇑ , Hideaki Shiraishi b , Kyousuke Kamada c , Shigeki Kameyama d , Naohiro Tsuyuguchi e , Masato Yumoto f , Yutaka Watanabe g , Masayuki Hirata h , Ryouhei Ishii i , Yoshinobu Iguchi j , Tomoaki Kimura k , Ryosuke Takino l , Isao Hashimoto m a Faculty of Health Sciences, Aomori University of Health and Welfare, 58-1 Mase, Hamadate, Aomori 030-8505, Japan b Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo 060-8638, Japan c Department of Neurosurgery, Asahikawa Medical University, Asahikawa 078-8510, Japan d Nishi-Niigata Chuo National Hospital, Niigata 950-2085, Japan e Department of Neurosurgery, Osaka City University Graduate School of Medicine, Osaka 545-8586, Japan f Department of Clinical Laboratory, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan g Department of Psychiatry, National Center Hospital of Neurology and Psychiatry, Tokyo 187-8551, Japan h Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan i Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan j Integrated Neuroscience Research Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan k Department of Acupuncture and Moxibustion, Tokyo Ariake University of Medical and Health Sciences, Tokyo 135-0063, Japan l Department of Developmental and Clinical Psychology, Shiraume Gakuen University, Tokyo 187-8570, Japan m Kanazawa Institute of Technology, Tokyo 102-0083, Japan article info Article history: Accepted 2 June 2012 Available online xxxx Keywords: Axial gradiometer Planar gradiometer MEG Stimulus-evoked MEG Magnetic fields Publication criteria A region of interest A root mean-squared (RMS) waveform A contour map A normal database highlights  In this article, we propose publication criteria for studies of an evoked or event-related magnetoenceph- alogram (MEG).  The criteria include original waveforms and a root mean-squared waveform in a region of interest with a contour map at an appropriate time.  This three set of presentations will allow comparison of evoked or event-related MEG signals recorded with different MEG sensors. abstract Magnetoencephalography (MEG) is a record of the magnetic fields produced by the electrical activities of the brain using MEG systems. There are three types of sensors for MEG systems: magnetometer and two types of gradiometer. Among them, two types of gradiometer, axial and planar, have been used world- wide. Unfortunately, the waveforms recorded by the two types of gradiometer are often different from each other. This poses a serious problem in comparing and evaluating the data from the two gradiome- ters. We consider that the MEG study should be published in a way that allows other workers using dif- ferent types of gradiometer to evaluate and replicate the results of MEG studies. There have been, however, no publication criteria for reports of studies on stimulus-evoked or event-related magnetic fields in human subjects. In this article, we propose publication criteria for evoked or event-related mag- netic fields of the human brain: original waveforms of selected channels covering a region of interest, a root mean-squared (RMS) waveform and a contour map at an appropriate time. Ó 2012 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved. Contents 1. Introduction .......................................................................................................... 00 2. Recommended representation of evoked MEG data .......................................................................... 00 2.1. The need for presenting raw records: original waveforms of selected channels covering a region of interest and an RMS waveform in the region of interest ................................................................................................. 00 1388-2457/$36.00 Ó 2012 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved. http://dx.doi.org/10.1016/j.clinph.2012.06.008 ⇑ Corresponding author. Address: Faculty of Health Sciences, Aomori University of Health and Welfare, 58-1 Mase, Hamadate, Aomori 030-8505, Japan. Tel.: +81 17 765 2070; fax: +81 17 765 2188. E-mail address: isamu@auhw.ac.jp (I. Ozaki). Clinical Neurophysiology xxx (2012) xxx–xxx Contents lists available at SciVerse ScienceDirect Clinical Neurophysiology journal homepage: www.elsevier.com/locate/clinph Please cite this article in press as: Ozaki I et al. Publication criteria for evoked magnetic fields of the human brain: A proposal. Clin Neurophysiol (2012), http://dx.doi.org/10.1016/j.clinph.2012.06.008