Contactless measurements of retinal activity using optically pumped magnetometers
Optically pumped magnetometers (OPMs) have been adopted for the measurement of brain activity. Without the need to be cooled to cryogenic temperatures, an array of these sensors can be placed more flexibly, which allows for the recording of neuronal structures other than neocortex. Here we use eight...
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doaj-a656e3902ad74200af9d04039dfba16b2021-10-05T04:18:51ZengElsevierNeuroImage1095-95722021-11-01243118528Contactless measurements of retinal activity using optically pumped magnetometersBritta U. Westner0James I. Lubell1Mads Jensen2Sigbjørn Hokland3Sarang S. Dalal4Corresponding author.; Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Radboud University, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The NetherlandsCenter of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus, DenmarkResearch Unit for Robophilosophy and Integrative Social Robotics, Institut for Kultur og Samfund, Aarhus University, Aarhus, Denmark; Interacting Minds Centre, Institut for Kultur og Samfund, Aarhus University, Aarhus, Denmark; Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus, DenmarkCenter of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, DenmarkCenter of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus, DenmarkOptically pumped magnetometers (OPMs) have been adopted for the measurement of brain activity. Without the need to be cooled to cryogenic temperatures, an array of these sensors can be placed more flexibly, which allows for the recording of neuronal structures other than neocortex. Here we use eight OPM sensors to record human retinal activity following flash stimulation. We compare this magnetoretinographic (MRG) activity to the simultaneously recorded electroretinogram of the eight participants. The MRG shows the familiar flash-evoked potentials (a-wave and b-wave) and shares a highly significant amount of information with the electroretinogram (both in a simultaneous and separate measurement). We conclude that OPM sensors have the potential to become a contactless alternative to fiber electrodes for the measurement of retinal activity. Such a contactless solution can benefit both clinical and neuroscientific settings.http://www.sciencedirect.com/science/article/pii/S1053811921008016OPMRetinaMagnetoretinogramElectroretinogramVision |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Britta U. Westner James I. Lubell Mads Jensen Sigbjørn Hokland Sarang S. Dalal |
spellingShingle |
Britta U. Westner James I. Lubell Mads Jensen Sigbjørn Hokland Sarang S. Dalal Contactless measurements of retinal activity using optically pumped magnetometers NeuroImage OPM Retina Magnetoretinogram Electroretinogram Vision |
author_facet |
Britta U. Westner James I. Lubell Mads Jensen Sigbjørn Hokland Sarang S. Dalal |
author_sort |
Britta U. Westner |
title |
Contactless measurements of retinal activity using optically pumped magnetometers |
title_short |
Contactless measurements of retinal activity using optically pumped magnetometers |
title_full |
Contactless measurements of retinal activity using optically pumped magnetometers |
title_fullStr |
Contactless measurements of retinal activity using optically pumped magnetometers |
title_full_unstemmed |
Contactless measurements of retinal activity using optically pumped magnetometers |
title_sort |
contactless measurements of retinal activity using optically pumped magnetometers |
publisher |
Elsevier |
series |
NeuroImage |
issn |
1095-9572 |
publishDate |
2021-11-01 |
description |
Optically pumped magnetometers (OPMs) have been adopted for the measurement of brain activity. Without the need to be cooled to cryogenic temperatures, an array of these sensors can be placed more flexibly, which allows for the recording of neuronal structures other than neocortex. Here we use eight OPM sensors to record human retinal activity following flash stimulation. We compare this magnetoretinographic (MRG) activity to the simultaneously recorded electroretinogram of the eight participants. The MRG shows the familiar flash-evoked potentials (a-wave and b-wave) and shares a highly significant amount of information with the electroretinogram (both in a simultaneous and separate measurement). We conclude that OPM sensors have the potential to become a contactless alternative to fiber electrodes for the measurement of retinal activity. Such a contactless solution can benefit both clinical and neuroscientific settings. |
topic |
OPM Retina Magnetoretinogram Electroretinogram Vision |
url |
http://www.sciencedirect.com/science/article/pii/S1053811921008016 |
work_keys_str_mv |
AT brittauwestner contactlessmeasurementsofretinalactivityusingopticallypumpedmagnetometers AT jamesilubell contactlessmeasurementsofretinalactivityusingopticallypumpedmagnetometers AT madsjensen contactlessmeasurementsofretinalactivityusingopticallypumpedmagnetometers AT sigbjørnhokland contactlessmeasurementsofretinalactivityusingopticallypumpedmagnetometers AT sarangsdalal contactlessmeasurementsofretinalactivityusingopticallypumpedmagnetometers |
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1716843674666532864 |