Saskia Klein1, Lars Kasper1, Johanna Vannesjo1, Maximilian Hberlin1, Simon Gross1, Benjamin Dietrich1, Klaas P. Prssmann1
1Institute for Biomedical Engineering, ETH Zurich, Zurich, Switzerland
In fMRI, changes in image intensity are induced by signal fluctuations, e.g. related to the brain metabolism (BOLD). They can also be caused by gradient system instabilities and drifts, leading to confounds in time series analyses.