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TRR 295

Retuning dynamic motor network disorders using neuromodulation

Research insights to improve the therapy of brain disorders by the Transregional Collaborative Research Center TRR 295 ReTune, which is funded by the German Research Foundation (DFG).

Standard of care

Developing innovative neuromodulation therapies

Many neurological diseases are associated with movement disorders. Neuromodulation, a method that applies therapeutic electric currents or magnetic fields to the brain, has demonstrably helped restore motor deficits in movement-impaired patients. While deep brain stimulation (DBS) is considered the gold standard for treating Parkinson´s disease (PD) and various forms of tremor or dystonia, these therapies are not yet available for many other brain diseases.

Brain network dynamics and function

In the brain, approximately 86 billion nerve cells interact spatially and temporally to create a highly complex dynamic network whose exact functioning remains one of the great mysteries of brain research. One research focus of the TRR 295 ReTune is to understand the mechanisms and function of dynamic neuronal networks in health and disease in order to retune altered networks by invasive or non-invasive brain stimulation. The aim is to develop innovative neuromodulation systems that respond to specific demands, precisely target individual symptom cycles, and are activated only when disease symptoms occur.

Collaborative Research Centre TRR 295 ReTune

The Collaborative Research Centre TRR 295 ReTune consists of an interdisciplinary team of physicians, neuroscientists, and basic researchers from the Charité – Universitätsmedizin Berlin, Julius-Maximilians-Universität Würzburg, and seven other internationally renowned institutions in Düsseldorf, Potsdam, Leipzig, Rostock, Berlin, Würzburg, and Jerusalem. This multidisciplinary consortium is collaborating on various research projects, each addressing specific aspects of motor network disorders. The joint project is being funded with ten million euros by the German Research Foundation (DFG) for an initial period of four years starting in 2020.

Learn more about our TRR 295

“Our vision is to develop network-specific, yet minimally invasive neuromodulation methods for clinical practice to set new standards in the treatment of complex neurological movement disorders.”

Prof. Dr. Andrea Kühn, spokesperson of the TRR 295 ReTune and Head of Movement Disorders and Neuromodulation Unit at the Department of Neurology with Experimental Neurology, Charité – Universitätsmedizin Berlin.

News & Events

3rd Expert Summit on the Future of Deep Brain Stimulation

3rd Expert Summit on the Future of Deep Brain Stimulation

February 22-24, 2026 | Würzburg | Program

Keynote Speakers: Prof. Michael Fox | Dr. Helen Mayberg
Andrea Kühn at NeuroTalks

Patient engagement strengthens ReTune research on neuromodulation

Nov 25, 2025

ReTune researchers discussed recent neuromodulation results and patient experiences with deep brain stimulation at a NeuroTalk event in Berlin, highlighting the importance of patient engagement for future research.
ReTune Journal Club 2025 No. 8

ReTune Journal Club 2025 No. 8

Dec 2, 2025 | noon | Teams

presented by Paul Koch & Patricia Krause
Stimulating Brains Nov 2025

Stimulating Brains Nov 2025

Nov 20, 2025 | noon | Zoom

with Simon Little and Jeroen Habets
Video Call on a Laptop

EO Community Meeting 2025 No. 3

Nov 11, 2025

Organizational best practices towards gender equality in science and medicine.
ReTune Neuroscience Colloquium

ReTune Neuroscience Colloquium

November 4, 2025 | 5.30 pm | Hörsaal Neurologie

Heidi Johansen-Berg

All News & Events

Publications

Beyond beta rhythms: subthalamic aperiodic broadband power scales with Parkinson’s disease severity-a cross-sectional multicentre study.

Gerster et al. 2025 EBioMedicine.

We analysed subthalamic local field potentials from 119 patients with Parkinson's disease across five independent datasets. Power spectra were parametrised and studied in relation to Levodopa administration and the severity of motor symptoms.

Embracing Diversity: Sedative effects vary across drug chemistry and frequency domains.

Guang et al. 2025 Neuropharmacology.

These results suggest that, similar to sleep, the thalamic-cortical network, plays a crucial role in shaping basal ganglia activity during moderate sedation. EEG activity may, therefore, serve as a reference for selecting sedation protocols in deep brain stimulation procedures.

Central regulation of cardio-behavioral responses: Circuit engagement during aversive emotional states.

Rodriguez-Rozada, Tovote 2025 Curr Opin Neurobiol.

This study highlights that 1) homeodynamic cardiovascular control supports adaptive behavior under various states, 2)
higher-order brain regions orchestrate stressor-related cardiovascular changes and 3)
multidimensional approaches are crucial for understanding brain–heart interactions.

Redefining AT1 Receptor PET Imaging: Introducing the Radiotracer [18F]DR29.

Chen et al. 2025 Hypertension.

This study introduces [18F]DR29, a fluorine-18-labeled radiotracer for positron emission tomography imaging, to enable noninvasive visualization of AT1R expression. Its potential applications in understanding AT1R-associated renal processes are explored in healthy and hypertensive rat models.

From adaptive deep brain stimulation to adaptive circuit targeting.

Horn, Neumann. 2025 Nat Rev Neurol.

Our approach, termed adaptive circuit targeting, decodes symptom severity from brain signals and adaptively activates the most relevant symptom-response circuits. We discuss the state of the art in the adaptive and connectomic DBS fields and the research gaps that need to be addressed to unify these concepts.

18F labeled myocardial perfusion PET: New precision in cardiac imaging.

Higuchi et al. 2025 Mov Disord.

This review explores the current landscape of MPI, evaluates the clinical performance of novel 18F tracers, and discusses their transformative potential in expanding access to PET imaging and improving CAD diagnostics.

All Publications

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