New preprint: Revisiting the methodological foundation of lesion network mapping.
doi.org/10.64898/202...
A thread.
@bahnebahners
Research Fellow @ Brigham & Womenβs Hospital and Harvard Medical School interested in #DBSβ‘οΈ#MEG π§² #EEG π§ #Parkinson π· @netstim.org https://scholar.google.com/citations?hl=de&user=GmeYFEcAAAAJ
New preprint: Revisiting the methodological foundation of lesion network mapping.
doi.org/10.64898/202...
A thread.
A recent @natneuro.nature.com paper analyzed lesion network mapping and raised concerns about the validity of the method.
See below π for our response.
www.biorxiv.org/content/10.6...
Netstim on route to the DBS summit in WΓΌrzburg! Looking forward to seeing everybody soon!
For the first time, we characterized the Parkinson's Disease Response Network across space and time, simultaneously. Fantastic work led by @bahnebahners.bsky.social out in BRAIN now ππ
Researchers report the identification of "a deep brain stimulation response network that resembles the previously defined MRI network & operates in the high beta band"; Maximal connectivity to this network was associated with optimal DBS outcomes
academic.oup.com/brain/advanc...
π§ Deep brain stimulation for Parkinsonβs disease achieves its best results when a precisely defined brain network operating in the high beta frequency range is targeted. This was shown by a team @andreashorn.org @bahnebahners.bsky.social in both space and time for the first time.π
uni.koeln/5LYV7
π§ Die Tiefe Hirnstimulation bei Parkinson zeigt ihre bestmΓΆgliche Wirkung, wenn ein prΓ€zises Gehirnnetzwerk im Beta-Frequenzbereich (20β35 Hz) stimuliert wird β das zeigt ein Team um @andreashorn.org @bahnebahners.bsky.social jetzt erstmals gleichzeitig rΓ€umlich und zeitlichπ
youtu.be/ZrREFuDI-as
#neuroskyence #BrainStimulation
This has been an amazing team effort within the RETUNE CRC (sfb-retune.de) together with Roxanne Lofredi, Esther Florin, Andrea KΓΌhn and colleagues from #DΓΌsseldorf and #Berlin! We would like to thank all patients that dedicated their time to participate in this study.
In the future, this cortical signature of #lowfrequency power suppression in the SMA and synchronisation in frontal and cerebellar areas, may serve as a clinically relevant #biomarker to inform DBS programming, targeting strategies, and potentially even non-invasive stimulation approaches.
Using this low-frequency #signature we were able to predict DBS outcome in out of sample data.
Our findings highlight low-frequency modulation across motor and cerebellar regions as a key mechanism of pallidal DBS and re-emphasize dystonia as a #networkdisorder.
In a cohort of 16 patients with cervical dystonia we acquired cortical activity using #MEG ON and OFF pallidal DBS. We found a distinct cortical signature of #lowfrequency power suppression in the supplementary motor area (SMA) and synchronization in frontal and cerebellar areas.
Pallidal DBS is an effective therapy for patients with cervical dystonia. DBS suppresses enhanced #lowfrequency #hypersynchrony in the #basalganglia and modulates sensorimotor and cerebellar #networks in dystonia. However, these anatomical and electrophysiological findings have rarely been linked.
π¨ New research alert: What happens at the cortex during pallidal #DBS in patients with cervical #dystonia? π§ β‘
---> www.researchgate.net/publication/... <-----
Interpreting EEG requires understanding how the skull smears electrical fields as they propagate from the cortex. I made a browser-based simulator for my EEG class to visualize how dipole depth/orientation change the topomap.
dbrang.github.io/EEG-Dipole-D...
Github page: github.com/dbrang/EEG-D...
Can Christmas calm the Parkinson's brain? Feldmann, Neumann colleagues describe in a paper in Movement Disorders how Christmas alters brain signals recorded from deep brain stimulation systems in the setting of Parkinsonβs disease. @parkinsondotorg.bsky.social #christmas #xmas
Looking forward to reading this paper (see thread). π #neuroskyence
**Rethinking the centrality of brain areas in understanding functional organization**
New paper I anticipate will become a classic in neuroscience and a must-read for students at all levels.
Understanding brain function beyond brain areas.
#neuroskyence
www.nature.com/articles/s41...
What is the status of DBS for epilepsy?
Find out in our new review/metaanalysis spearheaded by @laurenahart.bsky.social & Garance Meyer in JNNP: pubmed.ncbi.nlm.nih.gov/40666371/
A π§΅ βΒ please RT for reach! π
π₯³Excited to share our latest human multipatch paper, now out in @natneuro.nature.com
π§ We studied the cellular and synaptic physiology of human L2β3 pyramidal neurons and identified subtype-specific local connectivity rules across individuals.
www.nature.com/articles/s41...
Join us: penglab.de
Longitudinal Changes in Cortical Response Dynamics with Deep Brain Stimulation to the Subcallosal Cingulate for Treatment-Resistant Depression https://www.biorxiv.org/content/10.1101/2025.11.26.690543v1
Figure 2. Changes in Motor Diary shows raw data for change in on-time: ST aDBS, DT aDBS, and Motor diary data: ST aDBS, DT aDBS. Graphs show individual participants, observed mean time h/d, asleep, off-time, on-time with TD, and without TD.
Long-term adaptive deep brain stimulation (aDBS) provided tolerable, effective, and safe therapy in persons with Parkinson disease whose symptoms were previously stable while receiving continuous DBS. ja.ma/3M2ENGl
#neuroskyence
New paper out in npj Digital Medicine! Fayed Rassoulou demonstrates how electrophysiology + machine learning can help identify the optimal contact for deep brain stimulation. rdcu.be/eNgG1
schematic of fetal OPM-MEG
ππ§ We're looking for brains! π§ π
Postdoc + PhD positions are available to help pioneer fetal MEG with optically pumped magnetometers, measuring prenatal responses to sound and light to understand how we start making sense of the world even before we're born. π£
Please get in touch to hear more!
There's still time to apply! #neurojobs
π§ β‘οΈ Preprint alert β‘οΈ π§
IοΈn the most comprehensive review of DBS in epilepsy, with 124 studies, 1,210 patients, and 20 anatomical targets we map where stimulation works best and why.
Deep Brain Stimulation for Epilepsy: Optimal Targeting and Clinical Outcomes
www.researchgate.net/publication/...
Thrilled our ADHD network mapping work is now out in Annals of the Child Neurology Society, and honored to be featured on the cover!
π Full article: onlinelibrary.wiley.com/doi/full/10....
@childneurosoc.bsky.social @bostonchildrens.bsky.social @simonwarfield.bsky.social @braincircuits.bsky.social
Take a look at our new work, providing explanations for the mechanisms of deep brain stimulation, with insights into the modulation of motor- premotor cortex activity from mouse-based and translatable research methodologies for future therapy solutions
shorturl.at/5Atjh
My med school textbook says stimulants like Ritalin treat hyperactivity by βstimulatingβ the brainβs attention and cognitive control systems. We studied children taking stimulants in the ABCD Study, and the largest differences were actually in arousal and reward networks! Check out our preprint!