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Hierarchical temporal blind source separation of fMRI data
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology. Linköping University, Center for Medical Image Science and Visualization (CMIV).
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology. Linköping University, Center for Medical Image Science and Visualization (CMIV).ORCID iD: 0000-0002-9267-2191
Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences. Linköping University, Center for Medical Image Science and Visualization (CMIV).ORCID iD: 0000-0001-8661-2232
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology. Linköping University, Center for Medical Image Science and Visualization (CMIV).ORCID iD: 0000-0002-9091-4724
2002 (English)In: Proceedings of the ISMRM Annual Meeting (ISMRM'02), 2002Conference paper, Published paper (Refereed)
Abstract [en]

Blind Source Separation (BSS) of fMRI data can be done both temporally and spatially. Temporal BSS of fMRI data has one fundamental problem not encountered in the spatial BSS approach. There are thousands of observed timecourses in an fMRI data set while the number of samples of each timecourse typically is less than two hundred. This re lation makes the problem of recovering the underlying temporal sources ill-posed. This contribution eliminates this problem by introducing a hierarchical approach for performing temporal BSS of fMRI data.

Place, publisher, year, edition, pages
2002.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-24526Local ID: 6658OAI: oai:DiVA.org:liu-24526DiVA: diva2:244847
Conference
10th Scientific Meeting and Exhibition,Honolulu, Hawaii, USA,18-24 May 2002
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2014-10-08

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Friman, OlaBorga, MagnusLundberg, PeterKnutsson, Hans

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CiteExportLink to record
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Citation style
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Language
  • de-DE
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Output format
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