23.08.2021

New publication on tensor decomposition

Tensor decomposition of simultaneously measured somatosensory evoked electrical potentials and magnetic fields.

Time traces of all channels, time-frequency representation of the signals averaged over all channels, and example spatial distributions of EEG and MEG. (a) EEG (b) MEG (c) spatial distributions of EEG at 21 ms (top) and MEG MAG at 21 ms (bottom) after the stimulation.

We propose a new approach to tensor decomposition and apply it to simultaneously measured somatosensory evoked electrical potentials (SEPs) and somatosensory evoked magnetic fields (SEFs) in eight subjects. This enables us to separate the oscillations in the frequency band between 80 Hz and 250 Hz from the overlapping activities in the same frequency range for SEPs and SEFs.

Cheng Y, Riesmeyer M, Haueisen J, Haardt M:

Using the multi-linear rank-(Lr, Lr, 1) decomposition for the detection of the 200 Hz band activity in somatosensory evoked magnetic fields and somatosensory evoked electrical potentials.
IEEE Access, 9:106232-106244, 2021

https://ieeexplore.ieee.org/document/9499063

Contact:    Prof. Dr.‐Ing. Jens Haueisen