Nils Kroemer
@nbkroemer.bsky.social
Neuroscientist | Professor of Medical Psychology at U Bonn | PI Neuroscience of Motivation, Action, & Desire Lab at U Bonn & Tübingen
aka @cornu_copiae
aka @cornu_copiae
Pinned
Nils Kroemer
@nbkroemer.bsky.social
· Apr 3
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...
Work w/ @kristinkaduk.bsky.social @akuehnel.bsky.social @derntllab.bsky.social
www.biorxiv.org/content/10.1...
Reposted by Nils Kroemer
The role of the #SpinalCord in relaying brain-body signals has been hard to study noninvasively. @giuliog.bsky.social &co develop Electrical Spinal Imaging (ESI), enabling high-resolution, noninvasive recordings, revealing how #attention modulates spinal activity @plosbiology.org 🧪 plos.io/3MswZOf
November 28, 2025 at 5:25 PM
The role of the #SpinalCord in relaying brain-body signals has been hard to study noninvasively. @giuliog.bsky.social &co develop Electrical Spinal Imaging (ESI), enabling high-resolution, noninvasive recordings, revealing how #attention modulates spinal activity @plosbiology.org 🧪 plos.io/3MswZOf
Reposted by Nils Kroemer
New study out today in Nature Comms: www.nature.com/articles/s41..., in which we set out to test whether ultrasound could influence the reward-related learning computations of the nucleus accumbens, building on decades of work on dopaminergic prediction error and reinforcement learning. And it did.
Non-invasive ultrasonic neuromodulation of the human nucleus accumbens impacts reward sensitivity - Nature Communications
This study shows that non-invasive ultrasound to the human nucleus accumbens can modulate deep brain activity and enhance reward-guided learning, offering a potential alternative to invasive neuromodu...
www.nature.com
November 28, 2025 at 12:26 PM
New study out today in Nature Comms: www.nature.com/articles/s41..., in which we set out to test whether ultrasound could influence the reward-related learning computations of the nucleus accumbens, building on decades of work on dopaminergic prediction error and reinforcement learning. And it did.
Reposted by Nils Kroemer
Full professorship in general psychology open @tudresden.bsky.social
We are a lively department with a fantastically equipped neuroimaing center. DM me with questions.
@dgps.bsky.social @dgps-fgal.bsky.social @biodgps-dgpa.bsky.social
tu-dresden.de/vacancy/12517
We are a lively department with a fantastically equipped neuroimaing center. DM me with questions.
@dgps.bsky.social @dgps-fgal.bsky.social @biodgps-dgpa.bsky.social
tu-dresden.de/vacancy/12517
November 28, 2025 at 3:40 PM
Full professorship in general psychology open @tudresden.bsky.social
We are a lively department with a fantastically equipped neuroimaing center. DM me with questions.
@dgps.bsky.social @dgps-fgal.bsky.social @biodgps-dgpa.bsky.social
tu-dresden.de/vacancy/12517
We are a lively department with a fantastically equipped neuroimaing center. DM me with questions.
@dgps.bsky.social @dgps-fgal.bsky.social @biodgps-dgpa.bsky.social
tu-dresden.de/vacancy/12517
Reposted by Nils Kroemer
Next guest in our lecture series #caiantalks is Charley Wu (@thecharleywu.bsky.social (@tuda.bsky.social ), who will speak on "Generalization Guides Exploration Across Development, Social Contexts, and Memory" on Thursday, Dec 11.
👉Visit our website for more information: www.caian.uni-bonn.de/en
👉Visit our website for more information: www.caian.uni-bonn.de/en
November 27, 2025 at 3:35 PM
Next guest in our lecture series #caiantalks is Charley Wu (@thecharleywu.bsky.social (@tuda.bsky.social ), who will speak on "Generalization Guides Exploration Across Development, Social Contexts, and Memory" on Thursday, Dec 11.
👉Visit our website for more information: www.caian.uni-bonn.de/en
👉Visit our website for more information: www.caian.uni-bonn.de/en
Reposted by Nils Kroemer
What have clinical trials 🧪 revealed about optimizing 📈 the use of immunomodulatory drugs 💊 for psychiatric disorders 🧠?
Find out here 👇
Find out here 👇
Lessons from clinical trials of immunomodulatory drugs in psychiatric disorders
Immune dysregulation has been implicated in the pathophysiology of psychiatric disorders, with peripheral inflammatory markers correlating with symptom severity, treatment refractoriness, and neural…
www.biologicalpsychiatryjournal.com
November 27, 2025 at 1:02 PM
What have clinical trials 🧪 revealed about optimizing 📈 the use of immunomodulatory drugs 💊 for psychiatric disorders 🧠?
Find out here 👇
Find out here 👇
Reposted by Nils Kroemer
Insular neural interfaces
Cognitive error signals in the anterior insula propagate toward prefrontal cortex when a BCI fails to follow the user’s intention. Real-time integration enables a self-correcting neural interface that compensates for its own decoder misclassifications
#neuroskyence
Cognitive error signals in the anterior insula propagate toward prefrontal cortex when a BCI fails to follow the user’s intention. Real-time integration enables a self-correcting neural interface that compensates for its own decoder misclassifications
#neuroskyence
Insular error network enables self-correcting intracranial brain-computer interface
Error recognition is fundamental to adaptive behavior, enabling rapid compensatory action when outcomes deviate from expectations. Central to this function are neural circuits for performance monitori...
www.biorxiv.org
November 27, 2025 at 9:40 AM
Insular neural interfaces
Cognitive error signals in the anterior insula propagate toward prefrontal cortex when a BCI fails to follow the user’s intention. Real-time integration enables a self-correcting neural interface that compensates for its own decoder misclassifications
#neuroskyence
Cognitive error signals in the anterior insula propagate toward prefrontal cortex when a BCI fails to follow the user’s intention. Real-time integration enables a self-correcting neural interface that compensates for its own decoder misclassifications
#neuroskyence
Reposted by Nils Kroemer
'Robust circular cluster-based statistics
for respiration-brain coupling'
New preprint, and what a way to welcome @teresaberther.bsky.social to the #neuroskyence community. With @eliobalestrieri.bsky.social, she developed CBPT for circular #bodybrain analyses.
Paper: osf.io/preprints/ps...
🧵🔽
for respiration-brain coupling'
New preprint, and what a way to welcome @teresaberther.bsky.social to the #neuroskyence community. With @eliobalestrieri.bsky.social, she developed CBPT for circular #bodybrain analyses.
Paper: osf.io/preprints/ps...
🧵🔽
November 26, 2025 at 3:15 PM
'Robust circular cluster-based statistics
for respiration-brain coupling'
New preprint, and what a way to welcome @teresaberther.bsky.social to the #neuroskyence community. With @eliobalestrieri.bsky.social, she developed CBPT for circular #bodybrain analyses.
Paper: osf.io/preprints/ps...
🧵🔽
for respiration-brain coupling'
New preprint, and what a way to welcome @teresaberther.bsky.social to the #neuroskyence community. With @eliobalestrieri.bsky.social, she developed CBPT for circular #bodybrain analyses.
Paper: osf.io/preprints/ps...
🧵🔽
Reposted by Nils Kroemer
Thrilled to share our new paper!
With @tomtom-auer.bsky.social team, we asked how #evolution reshapes what animals #eat to match their ecological niches. Using pan-neuronal Ca2+ imaging, we show that the changes are in how the brain processes #taste.
Link @nature.com: www.nature.com/articles/s41...
With @tomtom-auer.bsky.social team, we asked how #evolution reshapes what animals #eat to match their ecological niches. Using pan-neuronal Ca2+ imaging, we show that the changes are in how the brain processes #taste.
Link @nature.com: www.nature.com/articles/s41...
Evolution of taste processing shifts dietary preference - Nature
Calcium imaging of taste neurons and the ventral brain provides insight into evolutionary divergence of food choice in Drosophila species, supporting a role of sensorimotor processing in addition to p...
www.nature.com
November 26, 2025 at 4:33 PM
Thrilled to share our new paper!
With @tomtom-auer.bsky.social team, we asked how #evolution reshapes what animals #eat to match their ecological niches. Using pan-neuronal Ca2+ imaging, we show that the changes are in how the brain processes #taste.
Link @nature.com: www.nature.com/articles/s41...
With @tomtom-auer.bsky.social team, we asked how #evolution reshapes what animals #eat to match their ecological niches. Using pan-neuronal Ca2+ imaging, we show that the changes are in how the brain processes #taste.
Link @nature.com: www.nature.com/articles/s41...
Reposted by Nils Kroemer
Synesthetes claim sensory experiences, such as seeing color when reading or hearing a (black) number.
But how genuine are these reports and sensations? We introduce a rather direct measure of synesthetic perception: Synesthetes’ pupils respond to evoked color as if it was real color #vision! 👁️🎨🧪
November 26, 2025 at 4:40 PM
Synesthetes claim sensory experiences, such as seeing color when reading or hearing a (black) number.
But how genuine are these reports and sensations? We introduce a rather direct measure of synesthetic perception: Synesthetes’ pupils respond to evoked color as if it was real color #vision! 👁️🎨🧪
Reposted by Nils Kroemer
🚨Friends, we’re happy to share that our book is available for pre-order! 🎉
We aimed to cover all the foundations of the topic in an accessible manner for a large audience.
It could help set up a bachelor-level curriculum on the topic.
Pre-orders are very key for the fate of books: shorturl.at/Dxbif
We aimed to cover all the foundations of the topic in an accessible manner for a large audience.
It could help set up a bachelor-level curriculum on the topic.
Pre-orders are very key for the fate of books: shorturl.at/Dxbif
November 26, 2025 at 11:38 AM
🚨Friends, we’re happy to share that our book is available for pre-order! 🎉
We aimed to cover all the foundations of the topic in an accessible manner for a large audience.
It could help set up a bachelor-level curriculum on the topic.
Pre-orders are very key for the fate of books: shorturl.at/Dxbif
We aimed to cover all the foundations of the topic in an accessible manner for a large audience.
It could help set up a bachelor-level curriculum on the topic.
Pre-orders are very key for the fate of books: shorturl.at/Dxbif
Reposted by Nils Kroemer
New lab paper drop, this one has been a long time coming! Driven by Rob Aukema (now a postdoc with Kerry Ressler) this paper in Science Advances answered the lingering question of what role the amygdala plays in stress-induced neuroendocrine responses.
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
A network of basolateral amygdala projection neurons contributes to stress-induced activation of the hypothalamic-pituitary-adrenal axis
A network of basolateral amygdala neurons, but not singular projections, contributes to the neuroendocrine response to stress.
www.science.org
November 25, 2025 at 10:13 PM
New lab paper drop, this one has been a long time coming! Driven by Rob Aukema (now a postdoc with Kerry Ressler) this paper in Science Advances answered the lingering question of what role the amygdala plays in stress-induced neuroendocrine responses.
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Nils Kroemer
Great piece on #interoception and brain body interactions by @carlzimmer.com in the @nytimes.com www.nytimes.com/2025/11/25/s... What an exciting time to work on this. Join us @cshlmeetings.bsky.social to learn more about the this exciting field meetings.cshl.edu/meetings.asp...
Mapping the Sense of What’s Going On Inside
www.nytimes.com
November 26, 2025 at 8:58 AM
Great piece on #interoception and brain body interactions by @carlzimmer.com in the @nytimes.com www.nytimes.com/2025/11/25/s... What an exciting time to work on this. Join us @cshlmeetings.bsky.social to learn more about the this exciting field meetings.cshl.edu/meetings.asp...
Reposted by Nils Kroemer
#BrainHealth & physical health should be studied together: Multivariate study of #UKBioBank by @sarahgenon.bsky.social &co uncovers links between #cardiometabolic health, physical robustness, #brain structure & #neurotransmitter systems @plosbiology.org 🧪 plos.io/48j0UQg
November 25, 2025 at 5:40 PM
#BrainHealth & physical health should be studied together: Multivariate study of #UKBioBank by @sarahgenon.bsky.social &co uncovers links between #cardiometabolic health, physical robustness, #brain structure & #neurotransmitter systems @plosbiology.org 🧪 plos.io/48j0UQg
Reposted by Nils Kroemer
Preconfigured neuronal firing sequences in human brain organoids www.nature.com/articles/s41... "...results suggest that temporal sequences do not arise in an experience-dependent manner, but are rather constrained by a preconfigured architecture established during neurodevelopment"
Preconfigured neuronal firing sequences in human brain organoids - Nature Neuroscience
Examining human brain organoids and ex vivo neonatal murine cortical slices demonstrates that structured neuronal sequences emerge independently of sensory input, highlighting the potential of brain o...
www.nature.com
November 25, 2025 at 7:58 AM
Preconfigured neuronal firing sequences in human brain organoids www.nature.com/articles/s41... "...results suggest that temporal sequences do not arise in an experience-dependent manner, but are rather constrained by a preconfigured architecture established during neurodevelopment"
Packing all the stuff in my office because we finally have to move to a different building (where we already had some offices). It's just temporary, though. The planned construction work is a mere two years, and there will probably be no delays, right?
November 25, 2025 at 9:51 AM
Packing all the stuff in my office because we finally have to move to a different building (where we already had some offices). It's just temporary, though. The planned construction work is a mere two years, and there will probably be no delays, right?
Reposted by Nils Kroemer
📢To all scientists working on STRESS and/or RESILIENCE:
Save the date: 2027 GSRNet Conference, February 3–5, 2027 in Lausanne
Cutting-edge science, discussion sessions & great networking across our global community to connect, exchange, and advance our field together
Check for updates gsr-net.org
Save the date: 2027 GSRNet Conference, February 3–5, 2027 in Lausanne
Cutting-edge science, discussion sessions & great networking across our global community to connect, exchange, and advance our field together
Check for updates gsr-net.org
November 23, 2025 at 2:19 PM
📢To all scientists working on STRESS and/or RESILIENCE:
Save the date: 2027 GSRNet Conference, February 3–5, 2027 in Lausanne
Cutting-edge science, discussion sessions & great networking across our global community to connect, exchange, and advance our field together
Check for updates gsr-net.org
Save the date: 2027 GSRNet Conference, February 3–5, 2027 in Lausanne
Cutting-edge science, discussion sessions & great networking across our global community to connect, exchange, and advance our field together
Check for updates gsr-net.org
Reposted by Nils Kroemer
Excited to share that the main work of my PhD has been published!
We found that having control over pain makes expectations more precise, and changes pain perception. This is accompanied by activation changes in the PAG, SMA and ACC.
You can read the full version of the paper here: rdcu.be/eQy6X
We found that having control over pain makes expectations more precise, and changes pain perception. This is accompanied by activation changes in the PAG, SMA and ACC.
You can read the full version of the paper here: rdcu.be/eQy6X
Controllability changes pain perception by increasing the precision of expectations
Nature Communications - Control over pain changes how intense it is perceived. Here, the authors show that this effect results from increased expectation precision with control, which changes...
rdcu.be
November 22, 2025 at 1:50 PM
Excited to share that the main work of my PhD has been published!
We found that having control over pain makes expectations more precise, and changes pain perception. This is accompanied by activation changes in the PAG, SMA and ACC.
You can read the full version of the paper here: rdcu.be/eQy6X
We found that having control over pain makes expectations more precise, and changes pain perception. This is accompanied by activation changes in the PAG, SMA and ACC.
You can read the full version of the paper here: rdcu.be/eQy6X
Many things are annoying about the typical peer review process. But sometimes, you are fortunate to review a great paper with a clear rationale and methods, and it inspires you to think about the implications for your own work. The signal, in a sea of noise.
November 21, 2025 at 5:09 PM
Many things are annoying about the typical peer review process. But sometimes, you are fortunate to review a great paper with a clear rationale and methods, and it inspires you to think about the implications for your own work. The signal, in a sea of noise.
Reposted by Nils Kroemer
Very excited to hear about this! We find Bayesian multi-level modeling at the ROI level super helpful (e.g. www.cell.com/neuron/fullt... ), will be nice to not have to artificially carve the data into parcels a priori!
November 20, 2025 at 8:35 PM
Very excited to hear about this! We find Bayesian multi-level modeling at the ROI level super helpful (e.g. www.cell.com/neuron/fullt... ), will be nice to not have to artificially carve the data into parcels a priori!
Reposted by Nils Kroemer
1/6 Excited to share our new Nature Protocols article led by Tatiana Shnitko: “Measurement of electrochemical brain activity with fast-scan cyclic voltammetry during fMRI”, a step-by-step guide for simultaneous FSCV + fMRI.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
November 20, 2025 at 2:15 PM
1/6 Excited to share our new Nature Protocols article led by Tatiana Shnitko: “Measurement of electrochemical brain activity with fast-scan cyclic voltammetry during fMRI”, a step-by-step guide for simultaneous FSCV + fMRI.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Nils Kroemer
Very excited to introduce InteroMap, a new bodily mapping tool designed to measure how we subjectively experience our bodily sensations, what we call interoceptive phenomenology 🧵👇
November 18, 2025 at 10:07 PM
Very excited to introduce InteroMap, a new bodily mapping tool designed to measure how we subjectively experience our bodily sensations, what we call interoceptive phenomenology 🧵👇
Reposted by Nils Kroemer
Out now in Communications Biology 🧠 🫀We show that cardiac oscillations associated with vagal tone influence the strength of the heartbeat as sensed at brain level. We hypothesize that the heart may send information to the brain, encoded by the heartbeat strength doi.org/10.1038/s420...
Cardiac-vagal rhythm echoes on the heartbeat’s mechanosensory imprint in the brain - Communications Biology
Vagal-driven heart rhythm fluctuations modulate the heartbeat strength sensed in the head, linking cardiac rhythms to brain mechanosensation. These findings highlight vagal tone’s role in shaping brai...
doi.org
November 17, 2025 at 10:22 PM
Out now in Communications Biology 🧠 🫀We show that cardiac oscillations associated with vagal tone influence the strength of the heartbeat as sensed at brain level. We hypothesize that the heart may send information to the brain, encoded by the heartbeat strength doi.org/10.1038/s420...
Reposted by Nils Kroemer
An international collaboration fails to replicate one FUS (/TUS) protocol previously thought to change motor cortex excitability.
We're firmly in the phase of 'okay, so what *really* works?' with FUS. Great to see these kinds of efforts to find robust effects 👍
direct.mit.edu/imag/article...
We're firmly in the phase of 'okay, so what *really* works?' with FUS. Great to see these kinds of efforts to find robust effects 👍
direct.mit.edu/imag/article...
A Double-Blind Replication Attempt of Offline 5Hz-rTUS-Induced Corticospinal Excitability
Abstract. Transcranial ultrasound stimulation (TUS) is a promising new form of non-invasive neuromodulation. As a nascent technique, replication of its effects on brain function is important. Of parti...
direct.mit.edu
November 18, 2025 at 12:06 PM
An international collaboration fails to replicate one FUS (/TUS) protocol previously thought to change motor cortex excitability.
We're firmly in the phase of 'okay, so what *really* works?' with FUS. Great to see these kinds of efforts to find robust effects 👍
direct.mit.edu/imag/article...
We're firmly in the phase of 'okay, so what *really* works?' with FUS. Great to see these kinds of efforts to find robust effects 👍
direct.mit.edu/imag/article...
Reposted by Nils Kroemer
1/
New preprint on causal control of Pavlovian go bias:
Aster et al. “Continuous theta-burst stimulation of the vmPFC reduces Pavlovian go-invigoration and enhances thalamo-striatal RPE signals” (n=90, cTBS-fMRI Go/NoGo).
🔗 www.biorxiv.org/content/10.1...
#RewardSignals #neurosky #neuroskyence
New preprint on causal control of Pavlovian go bias:
Aster et al. “Continuous theta-burst stimulation of the vmPFC reduces Pavlovian go-invigoration and enhances thalamo-striatal RPE signals” (n=90, cTBS-fMRI Go/NoGo).
🔗 www.biorxiv.org/content/10.1...
#RewardSignals #neurosky #neuroskyence
doi.org
November 17, 2025 at 9:19 PM
1/
New preprint on causal control of Pavlovian go bias:
Aster et al. “Continuous theta-burst stimulation of the vmPFC reduces Pavlovian go-invigoration and enhances thalamo-striatal RPE signals” (n=90, cTBS-fMRI Go/NoGo).
🔗 www.biorxiv.org/content/10.1...
#RewardSignals #neurosky #neuroskyence
New preprint on causal control of Pavlovian go bias:
Aster et al. “Continuous theta-burst stimulation of the vmPFC reduces Pavlovian go-invigoration and enhances thalamo-striatal RPE signals” (n=90, cTBS-fMRI Go/NoGo).
🔗 www.biorxiv.org/content/10.1...
#RewardSignals #neurosky #neuroskyence
Reposted by Nils Kroemer
My paper is out!
Computational modeling of error patterns during reward-based learning show evidence that habit learning (value free!) supplements working memory in 7 human data sets.
rdcu.be/eQjLN
Computational modeling of error patterns during reward-based learning show evidence that habit learning (value free!) supplements working memory in 7 human data sets.
rdcu.be/eQjLN
A habit and working memory model as an alternative account of human reward-based learning
Nature Human Behaviour - In this study, Collins proposes an alternative dual-process (working memory and habit) model of reinforcement learning in humans.
rdcu.be
November 17, 2025 at 5:18 PM
My paper is out!
Computational modeling of error patterns during reward-based learning show evidence that habit learning (value free!) supplements working memory in 7 human data sets.
rdcu.be/eQjLN
Computational modeling of error patterns during reward-based learning show evidence that habit learning (value free!) supplements working memory in 7 human data sets.
rdcu.be/eQjLN