2015
DOI: 10.1016/j.jneumeth.2015.07.011
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Time-frequency analysis of resting state and evoked EEG data recorded at higher magnetic fields up to 9.4T

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Cited by 12 publications
(8 citation statements)
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“…Heart artefact distorted MEG signals in one of the subjects (Subject #13). The combination of independent component analysis and mutual information (mi) was used based on the method introduced in (Abbasi et al, ; Abbasi, Hirschmann, Schmitz, Schnitzler, & Butz, ) to identify artefactual components (mi between ICs and ECG signal; two artefactual components were detected for each condition). Finally, MEG data were segmented time locked to sound onset from −2 to 2 s. In the preprocessing and data analysis steps, custom‐made scripts in MATLAB R2018 (The MathWorks, Natick, MA) in combination with the MATLAB‐based FieldTrip toolbox (Oostenveld, Fries, Maris, & Schoffelen, ) were used in accordance with current MEG guidelines (Gross et al, ).…”
Section: Methodsmentioning
confidence: 99%
“…Heart artefact distorted MEG signals in one of the subjects (Subject #13). The combination of independent component analysis and mutual information (mi) was used based on the method introduced in (Abbasi et al, ; Abbasi, Hirschmann, Schmitz, Schnitzler, & Butz, ) to identify artefactual components (mi between ICs and ECG signal; two artefactual components were detected for each condition). Finally, MEG data were segmented time locked to sound onset from −2 to 2 s. In the preprocessing and data analysis steps, custom‐made scripts in MATLAB R2018 (The MathWorks, Natick, MA) in combination with the MATLAB‐based FieldTrip toolbox (Oostenveld, Fries, Maris, & Schoffelen, ) were used in accordance with current MEG guidelines (Gross et al, ).…”
Section: Methodsmentioning
confidence: 99%
“…To further eliminate cardiac and ocular artifacts, an independent component analysis was computed. Mutual information was calculated between the resulting components and the EOG and ECG channels [ 32 , 33 ]. Components were sorted according to their level of mutual information and subsequently visually examined regarding their topography and time course.…”
Section: Methodsmentioning
confidence: 99%
“…In order to identify and remove DBS artefacts from the decomposed MEG data, the concept of MI as described in Liu et al (2012) and Abbasi et al (2015) was used. In both studies combining fMRI and EEG, the authors showed that it is possible to find a subset of components that jointly have maximal dependency on the heartbeat and thus, remove the cardio-ballistic artefact successfully.…”
Section: Mutual Informationmentioning
confidence: 99%
“…In order to discriminate ICs related to brain activity from ICs related to the DBS artefact, a low threshold was defined in a twostep approach (Abbasi et al, 2015).…”
Section: Threshold Selectionmentioning
confidence: 99%
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