Flexible head-casts for high spatial precision MEG
| Autor: | Sofie S, Meyer, James, Bonaiuto, Mark, Lim, Holly, Rossiter, Sheena, Waters, David, Bradbury, Sven, Bestmann, Matthew, Brookes, Martina F, Callaghan, Nikolaus, Weiskopf, Gareth R, Barnes |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Male Models Anatomic Spatial resolution Neuroscience(all) Reproducibility of Results Magnetoencephalography Equipment Design 3D printing Magnetic Resonance Imaging Head movement minimization Head-cast Motion Imaging Three-Dimensional Head localization MRI-MEG Co-registration Head Movements Humans Female Patient Safety Head Research Article |
| Zdroj: | Journal of Neuroscience Methods |
| ISSN: | 0165-0270 |
| DOI: | 10.1016/j.jneumeth.2016.11.009 |
| Popis: | Highlights • We propose a method for constructing flexible head-casts to stabilize the head during MEG scanning. • Co-registration error is minimized by using MRI images to pre-define fiducial coil locations. • Within- and between-session movement is Background In combination with magnetoencephalographic (MEG) data, accurate knowledge of the brain’s structure and location provide a principled way of reconstructing neural activity with high temporal resolution. However, measuring the brain’s location is compromised by head movement during scanning, and by fiducial-based co-registration with magnetic resonance imaging (MRI) data. The uncertainty from these two factors introduces errors into the forward model and limit the spatial resolution of the data. New method We present a method for stabilizing and reliably repositioning the head during scanning, and for co-registering MRI and MEG data with low error. Results Using this new flexible and comfortable subject-specific head-cast prototype, we find within-session movements of |
| Databáze: | OpenAIRE |
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