Nils Kroemer
@nbkroemer.bsky.social
3.6K followers 1.9K following 280 posts
Neuroscientist | Professor of Medical Psychology at U Bonn | PI Neuroscience of Motivation, Action, & Desire Lab at U Bonn & Tübingen aka @cornu_copiae
Posts Media Videos Starter Packs
Pinned
nbkroemer.bsky.social
Do you get in a bad mood if you are hungry? Over 4 weeks with EMA+CGM, we tested if mood shifts are subconsciously driven by glucose levels or ratings of metabolic state #neuroskyence 🩺

Work w/ @kristinkaduk.bsky.social @akuehnel.bsky.social @derntllab.bsky.social

www.biorxiv.org/content/10.1...
Summary of the study. A: The schematic shows the experimental procedure, illustrating five weekly lab visits followed by 2 MR visits labeled from S1 to S7. After the first session (S1), participants undergo four weeks of continuous glucose monitoring (CGM) combined with ecological momentary assessment (EMA). B: The CGM system uses a small flex sensor placed at the posterior upper arm that is inserted in the subcutaneous fatty tissue. The glucose sensor, positioned beneath the skin surface layers (epidermis and dermis), measures glucose levels in the interstitial fluid within the subcutaneous adipose tissue. The data is wirelessly sent via near field communication (NFC) to the FreeStyle Libre 3 app on the participant’s cell phone. The accuracy of the sensor concerning capillary glucose has been validated (Alva et al., 2022). C: Participants rate their metabolic and mood states twice daily using a visual analog scale (VAS), ranging from 0 (not at all) to 100 (very).
nbkroemer.bsky.social
Published now (after long last & 10 citations). Although tVNS does not alter food reward ratings in healthy people, it acutely improved liking ratings in patients with MDD (also correlated with anhedonia). #neuroskyence 🩺

Work w/ @akuehnel.bsky.social
www.sciencedirect.com/science/arti...
Reposted by Nils Kroemer
rocioservin.bsky.social
We’re hiring!
My new Gut–Brain Axis Lab at Northwestern is looking for a Research Technologist 2 to help build the lab and explore how the nervous system shapes gut health and disease.
🔬 Apply here: myhr.northwestern.edu/psp/hrnu/EMP...
Sign In
JavaScript is required. This web browser does not support JavaScript or JavaScript in this web browser is not enabled.
myhr.northwestern.edu
Reposted by Nils Kroemer
beccasue99.bsky.social
NEW PREPRINT ❗️

A slightly different take on the old problem of #apathy - we find evidence that apathy is linked to confidence on action outcomes 🎯

🧠This confidence may be underpinned by self-regulation of prefrontal superficial pyramidal neurons

#neuroskyence

www.biorxiv.org/content/10.1...
Apathy as a Loss of Prior Precision on Action Outcomes
Apathy is common in neurological disease, associated with poor prognosis and limited treatments. Current models posit that goal-directed actions are reduced because costs or effort outweigh the expect...
www.biorxiv.org
Reposted by Nils Kroemer
natmetabolism.nature.com
REVIEW | The insulin signalling network 🧪

JG Burchfield, A Diaz-Vegas & DE James

A detailed overview of insulin signaling and its dysfunction, highlighting new therapeutic opportunities
The insulin signalling network - Nature Metabolism
In this Review, the authors provide a detailed overview of insulin signalling and its dysfunction, highlighting new therapeutic opportunities.
bit.ly
Reposted by Nils Kroemer
tmsmultilab.bsky.social
To find out about how #TMS #BrainStim users collect, analyse & share their data, we've made a very brief TMS survey:

forms.gle/83Abpj5F8qzd...

It should take you less than 5 minutes & does not ask for any personal information.

We'll use the answers to plan our future work.

Please share!

🙏🙏🙏

TMSMultiLab survey
TMSMultiLab is a community of ~70 researchers using transcranial magnetic stimulation (TMS). We aim to share methods code and data, to reach consensus & encourage best practice in TMS research methods...
forms.gle
Reposted by Nils Kroemer
sergeahmed.bsky.social
Ethanol ingestion via frugivory in wild chimpanzees

Chimpanzees typically eat ~4.5 kilograms of fruit per day, corresponding to an estimated ethanol ingestion of 14 grams (±9), or the equivalent of 1.4 (±0.9) standard drinks by international standards.

www.science.org/doi/10.1126/...
Reposted by Nils Kroemer
Reposted by Nils Kroemer
andganna.bsky.social
💥 New preprint & our first RCT! 💥

Does an extremely high or low BMI polygenic score influence weight loss after a diet intervention?

GENEROOS is a 6-month randomized diet vs. control trial testing if genetic predisposition to higher BMI affects weight loss in overweight adults
Reposted by Nils Kroemer
nicolecrust.bsky.social
Please spread the word! I am recruiting a PhD student this cycle (Fall 2026 start) to join my team in a new venture: the neuroscience of mood.

If you are curious to learn more, this short talk provides a good overview of why, what and how.

www.youtube.com/watch?v=gjIK...
Nicole Rust - The representation of mood in the primate insula (May 6, 2025)
YouTube video by Simons Foundation
www.youtube.com
nbkroemer.bsky.social
Cheers, Maria 🥂. We should celebrate as well at some point 🎉
Reposted by Nils Kroemer
Reposted by Nils Kroemer
carmensandi10.bsky.social
Very happy to share our new paper in Biological Psychiatry, showing that Urolithin A reverses high anxiety by repairing mitochondrial function in the nucleus accumbens.

Big kudos to first co-authors David Mallet & Doğukan Ülgen, our amazing team, and collaborators!

🔗 Paper: doi.org/10.1016/j.bi...
Redirecting
doi.org
Reposted by Nils Kroemer
ayejaysimon.bsky.social
New preprint alert!

We used connectome-based predictive modeling in a transdiagnostic sample to identify brain network correlates of wide array of behavioral measures. We also identify where networks supporting cognition overlap with those linked to diagnostically related clinical symptomatology.
Transdiagnostic connectome-based predictive modeling of many behavioral phenotypes reveals brain network mediators of clinical-cognitive relationships
Connectome-based predictive modeling (CPM) applied to functional MRI connectivity data can identify brain networks that vary with behavioral measures across subjects. The prediction strength also prov...
www.biorxiv.org
Reposted by Nils Kroemer
vhazzard.bsky.social
So grateful to the teens who shared their experiences with us to help develop the Co-occurring Insecurities Model, a new working theoretical model to explain the link between #foodinsecurity and #bingeeating. Full text: authors.elsevier.com/a/1loUMiVKTo...
Reposted by Nils Kroemer
dingdingpeng.the100.ci
Happy to announce that I'll give a talk on how we can make rigorous causal inference more mainstream 📈

You can sign up for the Zoom link here: tinyurl.com/CIIG-JuliaRo...
Causal inference interest group, supported by the Centre for Longitudinal Studies

Seminar series
20th October 2025, 3pm BST (UTC+1)

"Making rigorous causal inference more mainstream"
Julia Rohrer, Leipzig University

Sign up to attend at tinyurl.com/CIIG-JuliaRohrer
Reposted by Nils Kroemer
borismontreal.bsky.social
🚨 New paper in Nature Methods:
HippoMaps: multiscale cartography of the human hippocampus

Open-source tools & data to explore structure and function of the 🍤🧠 (histology, in/ex vivo MRI, iEEG)

Led by @jordandekraker.bsky.social

docs: hippomaps.readthedocs.io
paper: doi.org/10.1038/s415...
Reposted by Nils Kroemer
Reposted by Nils Kroemer
benjaminkay.bsky.social
Ever wondered if your interesting brain-behavior correlation was over- or under-estimated due to head motion, but were afraid to ask? We’ve created a motion impact score for detecting spurious brain-behavior associations, now available in Nature Communications!
doi.org/10.1038/s414...
nbkroemer.bsky.social
Congratulations 👏. At some point in life, it feels better how one hardly grows 'old', also in the German academic system 😄