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  1. Article

    Open Access

    Individual head models for estimating the TMS-induced electric field in rat brain

    In transcranial magnetic stimulation (TMS), the initial cortical activation due to stimulation is determined by the state of the brain and the magnitude, waveform, and direction of the induced electric field (...

    Lari M. Koponen, Matti Stenroos, Jaakko O. Nieminen, Kimmo Jokivarsi… in Scientific Reports (2020)

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  2. No Access

    Living Reference Work Entry In depth

    EEG/MEG Source Estimation and Spatial Filtering: The Linear Toolkit

    The choice and application of EEG/MEG source estimation methods require an understanding of their underlying modeling assumptions as well as tools to evaluate their spatial resolution and localization performa...

    Olaf Hauk, Matti Stenroos, Matthias Treder in Magnetoencephalography

  3. No Access

    Reference Work Entry In depth

    EEG/MEG Source Estimation and Spatial Filtering: The Linear Toolkit

    The choice and application of EEG/MEG source estimation methods require an understanding of their underlying modeling assumptions as well as tools to evaluate their spatial resolution and localization performa...

    Olaf Hauk, Matti Stenroos, Matthias Treder in Magnetoencephalography (2019)

  4. Article

    Open Access

    Requirements for Coregistration Accuracy in On-Scalp MEG

    Recent advances in magnetic sensing has made on-scalp magnetoencephalography (MEG) possible. In particular, optically-pumped magnetometers (OPMs) have reached sensitivity levels that enable their use in MEG. I...

    Rasmus Zetter, Joonas Iivanainen, Matti Stenroos, Lauri Parkkonen in Brain Topography (2018)

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  5. No Access

    Chapter and Conference Paper

    Kalman Filter with Augmented Measurement Model: An ECG Imaging Simulation Study

    ECG imaging is a non-invasive technique of characterizing the electrical activity and the corresponding excitation conduction of the heart using body surface ECG. The method may provide great opportunities in ...

    Walther H. W. Schulze, Francesc Elies Henar… in Functional Imaging and Modeling of the Hea… (2013)

  6. No Access

    Chapter and Conference Paper

    Skull Thickness versus Mesh Density — A Study on BEM Discretization Error

    In solving the EEG or MEG forward problem, the electric potential is commonly modeled with the boundary element method (BEM). It is known that the BEM has trouble dealing with the skull, and that the discretiz...

    Pascal Werner, Matti Stenroos in 17th International Conference on Biomagnet… (2010)

  7. No Access

    Chapter and Conference Paper

    Spatial Inversion of Depolarization and Repolarization Waves in Body Surface Potential Map** as Indicator of Old Myocardial Infarction

    To investigate the quantitative abnormalities induced by prior myocardial infarction (MI) on the whole electrical cardiac cycle, body surface potential map** was recorded in 144 patients with prior MI and 75...

    Paula Vesterinen, Helena Hänninen… in Functional Imaging and Modeling of the Hea… (2005)