Selected publications from the group and its collaborations, organised by the questions they address.
Timing and language
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.
Different stimulation times during object naming produce different network responses. Published online in December 2025; 2026 journal volume.
Chronometric TMS-fMRI of personalized left dorsolateral prefrontal target reveals state-dependency of subgenual anterior cingulate cortex effects
Grosshagauer S et al.
A study in healthy participants examining how task timing changes prefrontal and remote network engagement.
Functional connectivity explains how neuronavigated TMS of posterior temporal subregions differentially affect language processing
Vasileiadi M et al.
Connectivity and electric-field modelling help interpret the naming effects of stimulation at nearby temporal targets.
Network engagement and individualisation
Dose-Dependent Target Engagement of a Clinical Intermittent Theta Burst Stimulation Protocol
Chang KY, Tik M and colleagues, including Lucia Bulubas, Frank Padberg and Daniel Keeser.
A Vienna–Munich study of dose-dependent engagement in healthy participants. Published online in 2024; 2025 journal issue.
Neural response during prefrontal theta burst stimulation: Interleaved TMS-fMRI of full iTBS protocols
Chang KY, Tik M and colleagues, with Frank Padberg and Daniel Keeser.
Measuring the immediate brain response during complete iTBS protocols in a Vienna–Munich collaboration.
Concurrent TMS/fMRI reveals individual DLPFC dose-response pattern
Tik M et al.
Prefrontal BOLD responses vary between individuals across motor-threshold-based stimulation intensities.
Acute TMS/fMRI response explains offline TMS network effects – An interleaved TMS-fMRI study
Tik M et al.
Connecting the response during stimulation with network changes measured after stimulation.
How Standardized Is Transcranial Magnetic Stimulation Treatment for Depression? Large-Cohort Modeling Reveals Systematic Dosimetric Variability
Zhang and colleagues, including Martin Tik, with Georg Kranz.
A Hong Kong collaboration examining variation in modelled cortical dose.
Towards understanding rTMS mechanism of action: Stimulation of the DLPFC causes network-specific increase in functional connectivity
Tik M and colleagues.
An earlier sham-controlled study of resting-state connectivity after stimulation in healthy participants.
Peripartum depression
Neural correlates of peripartum depression: a systematic review, meta-analysis and comparison to major depressive disorder
Sobral and colleagues, including Maria Vasileiadi, Martin Tik, Ana Ganho-Ávila and Anna-Lisa Schuler.
A Riseup-PPD collaboration synthesising neuroimaging evidence. The paper explicitly acknowledges COST Action CA18138.
Methods and clinical research perspectives
Consensus guidelines for the use of concurrent TMS-fMRI in cognitive and clinical neuroscience
Woolgar, Feredoes and colleagues, including Martin Tik and Maria Vasileiadi.
Shared guidance for concurrent stimulation and imaging. Published online in 2025; Nature Protocols 21, 1–17 (2026).
A new flexible coil setup to measure interleaved TMS-fMRI response during accelerated iTBS
Tik M, Coetzee J, Kerr AB, Johnson N, Geoly A, Sridhar M, Hunegnaw SA, Veerapal C, Rolle C, Williams N.
Vienna–Stanford methods development for measuring network engagement during accelerated stimulation.
Accelerated Theta Burst Stimulation: Safety, Efficacy, and Future Advancements
Cole E, O’Sullivan SJ, Tik M, Williams NR.
A review of accelerated stimulation protocols, the clinical evidence and questions for future research.
High-sensitivity TMS/fMRI of the human motor cortex using a dedicated multichannel MR coil
Navarro de Lara L, Tik M and colleagues.
An earlier contribution to the development of concurrent stimulation–imaging methods.
Full institutional research record ↗ · PubMed ↗ · ORCID ↗
Current preprints
Preprints are research reports that have not yet completed peer review.
Target engagement during interleaved iTBS-fMRI predicts subsequent clinical response to connectivity-guided accelerated iTBS: results of the PRISM-TRD trial
Pople CB, Vasileiadi M and colleagues, including Martin Tik and Sean Nestor.
Toronto-led collaborative work examining target engagement and subsequent clinical response. The findings remain subject to peer review.
Completed theses
Completed student and doctoral projects associated with the group.
Targeting response variability in Transcranial Magnetic Stimulation using functional MRI and motion tracking
Sarah Grosshagauer
How do head movements and ongoing brain activity shape the effects of TMS? Sarah’s dissertation combines motion tracking and electric-field modelling with chronometric TMS-fMRI. It investigates ways to stabilise stimulation delivery and examines how brain state during a working-memory task influences prefrontal and remote network responses.
Publications from this thesis: Chronometric TMS-fMRI and brain state (2024) ↗ · Motion compensation and E-field variability (2026) ↗
Towards Causal connectomics in epilepsy: A chronometric TMS-fMRI approach
Maria Nanou
Interleaved TMS-fMRI based dosing for treatment of depression
Luna Müller-Hartburg
Novel Orbitofrontal Cortex Stimulation Targets Engage Cortico-Striatal Loop Circuits: An Interleaved TMS-fMRI Study
Improving language mapping through TMS and fMRI innovations
Recent bachelor’s thesis
Auswirkungen der Spulenorientierung auf die durch transkranielle Magnetstimulation induzierten elektrischen Felder
Vinzenz Wutzl · Completed August 2026. Supervision: Martin Tik and Erwin Jericha.
Individualised electric-field modelling with SimNIBS to investigate how TMS-coil orientation shapes stimulation of the dorsolateral prefrontal cortex.
Earlier methodological work
Studies co-authored by Martin Tik, with context and links to the original publications.
Theses by Martin Tik
Doctoral research in medical physics (2019) and the psychology diploma thesis (2014).
Explore the speech-production study
Original abstract, open-access full text and citation downloads for Vasileiadi et al., Brain Stimulation, 2026.