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

Happy to share our preprint! We show that hypothalamic hunger-promoting AgRP neurons reflect proximity to food across different mazes in hungry mice. After mice discover food, AgRP activity decreases as they approach the food and increases as they move away.

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · 6d ago

Hunger neurons track available food locations during foraging and spatial memory recall https://www.biorxiv.org/content/10.64898/2026.07.28.741066v1

First public dataset from the Mormann/Bonn lab! Congrats to @alanadarcher.bsky.social and @franzigrkn.bsky.social 🧠🎥!

Alana Darcher@alanadarcher.bsky.social · 6d ago

🎉 *extremely* excited to share our human single neuron + movie dataset is out in #ScientificData! 📄 Human neuron activity during an 83-minute movie from 2,286 neurons and 29 patients 🔗https://www.nature.com/articles/s41597-026-07955-0 1st public dataset from @humansingleneuron.bsky.social!🧵

A key challenge for computational psychiatry is to distinguish state from trait markers and go beyond cross-sectional studies. Here we show that as paranoia waxes and wanes in patients with schizophrenia, so too do volatility priors

Biological Psychiatry@biologicalpsych.bsky.social · last wk.

Individuals with schizophrenia spectrum disorders expect greater volatility in the world, and this cognitive bias is linked to paranoia and delusion severity over time.

Why do people stop pursuing goals they care about❓ Motivational deficits are among the most disabling symptoms, yet current treatments often have only modest effects. In @lillyt.bsky.social new paper, she asks if we're missing an important piece of the puzzle 🧠 #neuroscience #cogpsyc #psychscisky

Arousal shapes motivation: an integrative framework for understanding motivational deficits - Translational Psychiatry

Translational Psychiatry - Arousal shapes motivation: an integrative framework for understanding motivational deficits

nature.com

Dopamine and sodium appetite! Sodium appetite causes a 'sign change' in the taste of hypertonic NaCl solutions. We've previously shown that generation of the appetite recruits phasic dopamine to the taste of NaCl; here we show the 'derecruitment' process during satiation.

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · 2w ago

Rapidly decreasing phasic dopamine responses precede a hedonic switch during satiation of sodium appetite https://www.biorxiv.org/content/10.64898/2026.07.16.738888v1

People with depression and anxiety symptoms are surprisingly better at overriding gut-instinct motivational biases, while those with compulsions and intrusive thoughts showed the opposite pattern, suggesting distinct motivational disruptions across psychiatric dimensions.

Adaptive suppression of motivational biases increases with mood/anxiety traits

Changes in motivational biases appear central to many psychiatric disorders including depression, anxiety, and substance abuse. Motivational biases, theorized to embody default response strategies…

biologicalpsychiatrycnni.org

New preprint! We show low arousal states promote hippocampal ripple genesis in sleep and wake. This bridges rodent work, where ripples predominate during sleep, with human studies reporting ripples during active behavior, identifying low arousal as a common mechanism www.biorxiv.org/content/10.6...

Arousal state modulates human hippocampal ripples

Hippocampal ripples are transient, high-frequency oscillations linked to memory replay and consolidation. Ripples are well-characterized in rodents to occur during periods of behavioral inactivity (i....

biorxiv.org

New preprint alert! doi.org/10.64898/202... Throughout life, we are often told to persist in the pursuit of our long term goals. However, the most important factor to consider in the real world for whether to continue pursuit or abandon one's goal is knowing how much progress you are making.

Prefrontal mechanisms of goal progress inference and monitoring in macaque monkeys

Primates pursue goals over extended periods and over multiple steps. The ability to track progress and its rate is critical for such pursuit, yet the neural mechanisms of this tracking are unclear. We...

doi.org