Jan Gründemann
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jangrundemann.bsky.social
Jan Gründemann
@jangrundemann.bsky.social
Neuroscience.
Reposted by Jan Gründemann
Learning-dependent cholinergic plasticity reconfigures cortical circuit dynamics. https://www.biorxiv.org/content/10.1101/2025.11.10.687664v1
November 11, 2025 at 4:15 PM
Latest from the lab: Laura Haetzel finds that excitatory transmission from auditory thalamus to tail of striatum is accompanied by a sparse inhibitory projection. This allows for state-dependent control of striatal output.
www.cell.com/iscience/ful...
Inhibitory inputs from thalamus promote resilient spiking in tail of striatum
Neuroscience; Sensory neuroscience
www.cell.com
November 11, 2025 at 3:04 PM
Reposted by Jan Gründemann
Next-generation enhancer AAVs for selective interspecies targeting of midbrain dopaminergic neurons https://www.biorxiv.org/content/10.1101/2025.11.06.687071v1
November 8, 2025 at 7:15 AM
Reposted by Jan Gründemann
Plateau potentials are instructive signals for behavioral timescale synaptic plasticity in the neocortex https://www.biorxiv.org/content/10.1101/2025.11.07.687250v1
November 8, 2025 at 8:15 AM
Reposted by Jan Gründemann
How do VTA DA neurons sculpt downstream representations to reinforce actions? VERY excited about our new preprint (by Alex Pan Vazquez & @czimmerman.bsky.social )
VTA dopamine neuron activity produces spatially organized value representations https://www.biorxiv.org/content/10.1101/2025.11.04.685995v1
November 7, 2025 at 8:46 PM
Reposted by Jan Gründemann
Sickness engrams modulate anticipatory immune responses https://www.biorxiv.org/content/10.1101/2025.11.03.686140v1
November 5, 2025 at 4:15 PM
Reposted by Jan Gründemann
Ephaptic-Axonal Interactions Shape Radial Biases DuringNeural Self-Organization https://www.biorxiv.org/content/10.1101/2025.11.03.686361v1
November 5, 2025 at 4:16 PM
Reposted by Jan Gründemann
Such a nice collection of brain-body interaction articles in the special issue of @currentbiology.bsky.social. Love the beautiful vagus nerve on the cover by Andreas Vesalius www.cell.com/current-biol...
October 22, 2025 at 6:44 PM
Reposted by Jan Gründemann
We are hiring 🎉 Brandeis Neuroscience is looking for an Assistant Professor. The search is in the broad area of cellular/circuit neuroscience. It’s a fantastic place to do research and train students.If you’re interested, apply and reach out with any questions!

academicjobsonline.org/ajo/jobs/30961
Brandeis University, Biology Department
Job #AJO30961, Assistant Professor in Biology and Neuroscience Program, Biology Department, Brandeis University, Waltham, Massachusetts, US
academicjobsonline.org
October 22, 2025 at 11:57 PM
Reposted by Jan Gründemann
I am thrilled to share our latest work: we identified a population of central amygdala neurons that promote the earliest and perhaps most important social behavior: pup suckling!... We also developed new tools for pup neuroscience
Work by @Jeff Moore now at USC, a collaboration with @Sam Pfaff lab
October 21, 2025 at 10:18 AM
Reposted by Jan Gründemann
Selective coupling and decoupling coordinate distributed brain networks for precise action https://www.biorxiv.org/content/10.1101/2025.10.19.683309v1
October 20, 2025 at 6:15 PM
Reposted by Jan Gründemann
Registration open: eveeno.com/applicationb...

Under the theme “From Genes to Circuits and Behavior”, top neuroscientists - incl. Cori Bargmann, @edvardmoser.bsky.social, Rosa Paolicelli, Maude Baldwin & Zachary Knight - will meet at to explore how neural circuits drive behavior.
October 20, 2025 at 12:53 PM
Reposted by Jan Gründemann
Just out in Nature! “The astrocytic ensemble acts as a multiday trace to stabilize memory.” We identified astrocytic ensembles that link experiences across days to stabilize memory nature.com/articles/s41.... New astrocyte tools are openly available at Addgene: addgene.org/Jun_Nagai/. 1/8
October 15, 2025 at 4:11 PM
Reposted by Jan Gründemann
I am excited to share my PhD work on head-direction cells recorded in the wild, now published in @science.org, where we recorded neurons in bats flying outdoors on an island.

doi.org/10.1126/sci...

With @ray-neuro.bsky.social, Shir Maimon, Liora Las, Nachum Ulanovsky and many others
October 16, 2025 at 6:04 PM
Reposted by Jan Gründemann
Impact of serotonin transporter deficiency on parvalbumin- and neuropeptide Y-producing interneurons of the basolateral amygdala https://www.biorxiv.org/content/10.1101/2025.10.07.680627v1
October 7, 2025 at 9:17 PM
Reposted by Jan Gründemann
👀“experience of a punished outcome generates a BLA representation that is selectively replayed when animals subsequently abort choice of the large/risky reward option.”
⚡️“… risk leads to the incorporation of newly encoding BLA neurons into the pre-choice representation”
October 8, 2025 at 12:14 AM
Reposted by Jan Gründemann
🔬 Join us for the next iBehave Seminar Series 2025 lecture with Prof. Dr. Mark Schnitzer @Stanford on Oct 9, 11:00 DZNE Bonn. Host: @jangrundemann.bsky.social

Title: Cell-type specific voltage imaging of neural spiking, oscillations, waves, and memory dynamics

📧 Zoom info: ibehave@uni-bonn.de
October 6, 2025 at 3:55 PM
Reposted by Jan Gründemann
Travel awards are available for undergraduate students looking to attend #Cosyne25! The application is short, and the deadline is Nov 12. @cosynemeeting.bsky.social

Application: shorturl.at/6NEyk

More info: www.cosyne.org/travel-grants

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Travel Grants — COSYNE
Apply for COSYNE 2026 Travel Grants to support your participation in Lisbon and Cascais, Portugal. Grants are available for students, postdocs, and PIs, including programs for Childcare, Presenters, N...
www.cosyne.org
October 3, 2025 at 3:10 PM
Reposted by Jan Gründemann
A couple of new preprints out from Kash Lab!
October 3, 2025 at 4:40 PM
Reposted by Jan Gründemann
Using a new genetically-encoded voltage indicator in an all-optical approach to measure synaptic plasticity in awake behaving mice. Great work by @jacquescarolan.bsky.social and colleagues. Check out www.nature.com/articles/s41...
All-optical voltage interrogation for probing synaptic plasticity in vivo - Nature Communications
Reliable measuring the voltage dynamics of individual neurons in the intact brain is significantly challenging. Here authors developed an all-optical method combining two-photon voltage imaging and optogenetics to measure and induce synaptic plasticity in vivo, revealing LTP of inhibition in cerebellar circuits and providing a blueprint to link synaptic changes to learning.
www.nature.com
October 4, 2025 at 2:15 AM
Reposted by Jan Gründemann
Human brain organoids record the passage of time over multiple years in culture https://www.biorxiv.org/content/10.1101/2025.10.01.679721v1
October 2, 2025 at 2:15 PM
Reposted by Jan Gründemann
Exploring the correspondence between gene expressionand thalamic nuclei using the THALMANAC resource https://www.biorxiv.org/content/10.1101/2025.09.30.679413v1
October 2, 2025 at 11:16 PM