| NUTMEG: a neuromagnetic source reconstruction toolbox. | |
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MedLine Citation:
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PMID: 16012626 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We have developed an analysis toolbox called NUTMEG (Neurodynamic Utility Toolbox for Magnetoencephalography) for reconstructing the spatiotemporal dynamics of neural activations and overlaying them onto structural MR images. The toolbox runs under MATLAB in conjunction with SPM2 and can be used with the Linux/UNIX, Mac OS X, and even Windows platforms. Currently, evoked magnetic field data from 4-D Neuroimaging, CTF, and KIT systems can be imported to the toolbox for analysis. NUTMEG uses an eigenspace vector beamforming algorithm to generate a tomographic reconstruction of spatiotemporal magnetic source activity over selected time intervals and spatial regions. The MEG coordinate frame is coregistered with an anatomical MR image using fiducial locations and, optionally, head shape information. This allows the reconstruction to be superimposed onto an MRI to provide a convenient visual correspondence to neuroanatomy. Navigating through the MR volume automatically updates the displayed time series of activation for the selected voxel. Animations can also be generated to view the evolution of neural activity over time. Since NUTMEG displays activations using SPM2's engine, certain SPM functions such as brain rendering and spatial normalization may be applied as well. Finally, as a MATLAB package, the end user can easily add customized functions. Source code is available at http://bil.ucsf.edu/ and distributed under a BSD-style license. |
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Authors:
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S S Dalal; J M Zumer; V Agrawal; K E Hild; K Sekihara; S S Nagarajan |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S. Date: 2004-11-30 |
Journal Detail:
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Title: Neurology & clinical neurophysiology : NCN Volume: 2004 ISSN: 1526-8748 ISO Abbreviation: Neurol Clin Neurophysiol Publication Date: 2004 |
Date Detail:
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Created Date: 2005-07-13 Completed Date: 2006-04-14 Revised Date: 2011-05-23 |
Medline Journal Info:
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Nlm Unique ID: 100972440 Medline TA: Neurol Clin Neurophysiol Country: United States |
Other Details:
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Languages: eng Pagination: 52 Citation Subset: IM |
Affiliation:
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University of California, San Francisco, CA 94143-0628, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Electroencephalography
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methods* Humans Image Processing, Computer-Assisted / methods* Magnetoencephalography / methods* Models, Neurological* Software |
| Grant Support | |
ID/Acronym/Agency:
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F31 DC006762/DC/NIDCD NIH HHS; R01 DC004855/DC/NIDCD NIH HHS; R01 DC004855-03S1/DC/NIDCD NIH HHS; R01 DC004855-09/DC/NIDCD NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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