Sarah Grosshagauer was a doctoral researcher in Martin Tik’s group at the Medical University of Vienna, where she trained in combining transcranial magnetic stimulation with functional MRI (TMS-fMRI).
During her time in the group, Sarah used chronometric TMS-fMRI to investigate how ongoing brain activity shapes the response to stimulation. Her work examined how stimulation of the prefrontal cortex engages connected brain regions, and how these responses depend on the timing of stimulation during a working-memory task. She is now an alumna of the group.
Doctoral research
Targeting response variability in Transcranial Magnetic Stimulation using functional MRI and motion tracking
Her dissertation brings together two sources of variability in TMS: movement-related changes in the delivered electric field and the influence of the brain’s ongoing activity. It combines motion tracking and electric-field modelling with chronometric TMS-fMRI.
Selected publications
Chronometric TMS-fMRI of personalized left dorsolateral prefrontal target reveals state-dependency of subgenual anterior cingulate cortex effects
Grosshagauer S et al.
Reducing target E-field variability in repetitive TMS through online motion compensation
Grosshagauer S et al.
Chronometric interleaved TMS-fMRI shows state-dependent network effects underlying speech production
Vasileiadi M, Schuler AL, Woletz M, Witz V, Grosshagauer S, Coetzee J, Tik M.