A 20-channel magnetoencephalography system based on optically pumped magnetometers
We describe a multichannel magnetoencephalography (MEG) system that uses optically pumped magnetometers (OPMs) to sense the magnetic fields of the human brain. The system consists of an array of 20 OPM channels conforming to the human subject's head, a person-sized magnetic shield containing th...
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| Published in | Physics in medicine & biology Vol. 62; no. 23; pp. 8909 - 8923 |
|---|---|
| Main Authors | , , , , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
England
IOP Publishing
10.11.2017
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| Subjects | |
| Online Access | Get full text |
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| Abstract | We describe a multichannel magnetoencephalography (MEG) system that uses optically pumped magnetometers (OPMs) to sense the magnetic fields of the human brain. The system consists of an array of 20 OPM channels conforming to the human subject's head, a person-sized magnetic shield containing the array and the human subject, a laser system to drive the OPM array, and various control and data acquisition systems. We conducted two MEG experiments: auditory evoked magnetic field and somatosensory evoked magnetic field, on three healthy male subjects, using both our OPM array and a 306-channel Elekta-Neuromag superconducting quantum interference device (SQUID) MEG system. The described OPM array measures the tangential components of the magnetic field as opposed to the radial component measured by most SQUID-based MEG systems. Herein, we compare the results of the OPM- and SQUID-based MEG systems on the auditory and somatosensory data recorded in the same individuals on both systems. |
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| AbstractList | We describe a multichannel magnetoencephalography (MEG) system that uses optically pumped magnetometers (OPMs) to sense the magnetic fields of the human brain. The system consists of an array of 20 OPM channels conforming to the human subject’s head, a person-sized magnetic shield containing the array and the human subject, a laser system to drive the OPM array, and various control and data acquisitions systems. We conducted two MEG experiments: auditory evoked magnetic field (AEF) and somatosensory evoked magnetic field (SEF), on three healthy male subjects, using both our OPM array and a 306-channel Elekta-Neuromag superconducting quantum interference device (SQUID) MEG system. The described OPM array measures the tangential components of the magnetic field as opposed to the radial component measured by most SQUID-based MEG systems. Herein, we compare the results of the OPM- and SQUID-based MEG systems on the auditory and somatosensory data recorded in the same individuals on both systems. We describe a multichannel magnetoencephalography (MEG) system that uses optically pumped magnetometers (OPMs) to sense the magnetic fields of the human brain. The system consists of an array of 20 OPM channels conforming to the human subject's head, a person-sized magnetic shield containing the array and the human subject, a laser system to drive the OPM array, and various control and data acquisition systems. We conducted two MEG experiments: auditory evoked magnetic field and somatosensory evoked magnetic field, on three healthy male subjects, using both our OPM array and a 306-channel Elekta-Neuromag superconducting quantum interference device (SQUID) MEG system. The described OPM array measures the tangential components of the magnetic field as opposed to the radial component measured by most SQUID-based MEG systems. Herein, we compare the results of the OPM- and SQUID-based MEG systems on the auditory and somatosensory data recorded in the same individuals on both systems. In this paper, we describe a multichannel magnetoencephalography (MEG) system that uses optically pumped magnetometers (OPMs) to sense the magnetic fields of the human brain. The system consists of an array of 20 OPM channels conforming to the human subject's head, a person-sized magnetic shield containing the array and the human subject, a laser system to drive the OPM array, and various control and data acquisition systems. We conducted two MEG experiments: auditory evoked magnetic field and somatosensory evoked magnetic field, on three healthy male subjects, using both our OPM array and a 306-channel Elekta-Neuromag superconducting quantum interference device (SQUID) MEG system. The described OPM array measures the tangential components of the magnetic field as opposed to the radial component measured by most SQUID-based MEG systems. Finally, herein, we compare the results of the OPM- and SQUID-based MEG systems on the auditory and somatosensory data recorded in the same individuals on both systems. We describe a multichannel magnetoencephalography (MEG) system that uses optically pumped magnetometers (OPMs) to sense the magnetic fields of the human brain. The system consists of an array of 20 OPM channels conforming to the human subject's head, a person-sized magnetic shield containing the array and the human subject, a laser system to drive the OPM array, and various control and data acquisition systems. We conducted two MEG experiments: auditory evoked magnetic field and somatosensory evoked magnetic field, on three healthy male subjects, using both our OPM array and a 306-channel Elekta-Neuromag superconducting quantum interference device (SQUID) MEG system. The described OPM array measures the tangential components of the magnetic field as opposed to the radial component measured by most SQUID-based MEG systems. Herein, we compare the results of the OPM- and SQUID-based MEG systems on the auditory and somatosensory data recorded in the same individuals on both systems.We describe a multichannel magnetoencephalography (MEG) system that uses optically pumped magnetometers (OPMs) to sense the magnetic fields of the human brain. The system consists of an array of 20 OPM channels conforming to the human subject's head, a person-sized magnetic shield containing the array and the human subject, a laser system to drive the OPM array, and various control and data acquisition systems. We conducted two MEG experiments: auditory evoked magnetic field and somatosensory evoked magnetic field, on three healthy male subjects, using both our OPM array and a 306-channel Elekta-Neuromag superconducting quantum interference device (SQUID) MEG system. The described OPM array measures the tangential components of the magnetic field as opposed to the radial component measured by most SQUID-based MEG systems. Herein, we compare the results of the OPM- and SQUID-based MEG systems on the auditory and somatosensory data recorded in the same individuals on both systems. |
| Author | Colombo, Anthony P Berry, Christopher McKay, Jim Schwindt, Peter D D Jau, Yuan-Yu Goldberg, Josh D Stephen, Julia Carter, Tony R Weisend, Michael Borna, Amir |
| AuthorAffiliation | 6 Rio Grande Neurosciences, Inc., 6401 Richards Avenue, Santa Fe, NM 87508 3 Currently with the Infinera Corporation,140 Caspian Ct., Sunnyvale, CA 94089 5 The Mind Research Network and Lovelace Biomedical and Environmental Research Institute, Albuquerque, NM 87106 1 Sandia National Laboratories, PO Box 5800, Albuquerque, NM 87185-1082, USA 7 Department of Neurosurgery, University of New Mexico, Albuquerque, NM 87131 2 Aegis Technologies Group Inc, Albuquerque, NM 87110 4 Candoo Systems Inc., 2991 Thacker Avenue, Coquitlam BC Canada V3C 4N6 |
| AuthorAffiliation_xml | – name: 2 Aegis Technologies Group Inc, Albuquerque, NM 87110 – name: 7 Department of Neurosurgery, University of New Mexico, Albuquerque, NM 87131 – name: 1 Sandia National Laboratories, PO Box 5800, Albuquerque, NM 87185-1082, USA – name: 5 The Mind Research Network and Lovelace Biomedical and Environmental Research Institute, Albuquerque, NM 87106 – name: 3 Currently with the Infinera Corporation,140 Caspian Ct., Sunnyvale, CA 94089 – name: 4 Candoo Systems Inc., 2991 Thacker Avenue, Coquitlam BC Canada V3C 4N6 – name: 6 Rio Grande Neurosciences, Inc., 6401 Richards Avenue, Santa Fe, NM 87508 |
| Author_xml | – sequence: 1 givenname: Amir surname: Borna fullname: Borna, Amir email: aborna@sandia.gov organization: Sandia National Laboratories , PO Box 5800, Albuquerque, NM 87185-1082, United States of America – sequence: 2 givenname: Tony R surname: Carter fullname: Carter, Tony R organization: Sandia National Laboratories , PO Box 5800, Albuquerque, NM 87185-1082, United States of America – sequence: 3 givenname: Josh D surname: Goldberg fullname: Goldberg, Josh D organization: Aegis Technologies Group Inc , Albuquerque, NM 87110, United States of America – sequence: 4 givenname: Anthony P surname: Colombo fullname: Colombo, Anthony P organization: Sandia National Laboratories , PO Box 5800, Albuquerque, NM 87185-1082, United States of America – sequence: 5 givenname: Yuan-Yu surname: Jau fullname: Jau, Yuan-Yu organization: Sandia National Laboratories , PO Box 5800, Albuquerque, NM 87185-1082, United States of America – sequence: 6 givenname: Christopher surname: Berry fullname: Berry, Christopher organization: Currently with the Infinera Corporation , 140 Caspian Ct., Sunnyvale, CA 94089, United States of America – sequence: 7 givenname: Jim surname: McKay fullname: McKay, Jim organization: Candoo Systems Inc. , 2991 Thacker Avenue, Coquitlam, BC V3C 4N6, Canada – sequence: 8 givenname: Julia surname: Stephen fullname: Stephen, Julia organization: The Mind Research Network and Lovelace Biomedical and Environmental Research Institute , Albuquerque, NM 87106, United States of America – sequence: 9 givenname: Michael surname: Weisend fullname: Weisend, Michael organization: University of New Mexico Department of Neurosurgery, Albuquerque, NM 87131, United States of America – sequence: 10 givenname: Peter D D surname: Schwindt fullname: Schwindt, Peter D D organization: Sandia National Laboratories , PO Box 5800, Albuquerque, NM 87185-1082, United States of America |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/29035875$$D View this record in MEDLINE/PubMed https://www.osti.gov/servlets/purl/1429765$$D View this record in Osti.gov |
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| Snippet | We describe a multichannel magnetoencephalography (MEG) system that uses optically pumped magnetometers (OPMs) to sense the magnetic fields of the human brain.... In this paper, we describe a multichannel magnetoencephalography (MEG) system that uses optically pumped magnetometers (OPMs) to sense the magnetic fields of... |
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| SubjectTerms | 60 APPLIED LIFE SCIENCES Adult auditory evoked magnetic field (AEF) Brain - physiology CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS diffractive optical element (DOE) Humans Magnetic Fields magnetoencephalography Magnetoencephalography - instrumentation Magnetometry - instrumentation Male Optical Phenomena optically pumped magnetometer (OPM) OTHER INSTRUMENTATION somatosensory evoked magnetic field (SEF) spin-exchange relaxation-free (SERF) superconducting quantum interference device (SQUID) |
| Title | A 20-channel magnetoencephalography system based on optically pumped magnetometers |
| URI | https://iopscience.iop.org/article/10.1088/1361-6560/aa93d1 https://www.ncbi.nlm.nih.gov/pubmed/29035875 https://www.proquest.com/docview/1952100267 https://www.osti.gov/servlets/purl/1429765 https://pubmed.ncbi.nlm.nih.gov/PMC5890515 |
| Volume | 62 |
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