Sign in

David

@dav1dcg.bsky.social
346 followers 164 following 170 posts

All about neuronal activity: development, visual cortex, neuromodulation, interneurons, patch-clamp, and in vivo calcium imaging. Neuroscience blog: spikesandbursts.wordpress.com

PostsRepliesMedia
David @dav1dcg.bsky.social · 06/09/2026
Preprint time! What does acetylcholine do in the developing visual cortex, before the eyes even open? Read it here: "Acetylcholine mediates behavioral state-dependent modulation of spontaneous activity in the developing mouse visual cortex" www.biorxiv.org/content/10.6...
biorxiv.org
Acetylcholine mediates behavioral state-dependent modulation of spontaneous activity in the developing mouse visual cortex
Synchronized and desynchronized patterns of spontaneous activity during brain development prepare cortical circuits such as the visual cortex for processing external sensory information. Yet the neuro...
3308
David @dav1dcg.bsky.social · 24/05/2026
Translatome profiling reveals opposing alterations in inhibitory and excitatory neurons of fragile X mice and identifies EPAC2 as a therapeutic target: doi.org/10.1016/j.ne... EPAC2 (exchange protein directly activated by cAMP 2) antagonist rescued circuit and behavioral phenotypes in Fmr1 KO mice.
010
Reposted by David
Nature @nature.com · 22/05/2026
Nature research paper: Feature-specific threat coding in lateral septum guides defensive action go.nature.com/4uv9qps
go.nature.com
Feature-specific threat coding in lateral septum guides defensive action - Nature
The populations of CRHR2-expressing neurons in the lateral septum of mice involved in threat-related behaviour in response to environmental challenges are defined.
0205
David @dav1dcg.bsky.social · 24/05/2026
Thalamic activity regulates interneuron density in the developing visual thalamus www.jneurosci.org/content/earl...
jneurosci.org
Thalamic activity regulates interneuron density in the developing visual thalamus
Neural activity is a fundamental driver of early circuit assembly, yet how it shapes the distribution of inhibitory neurons across sensory networks remains poorly understood. Establishing an appropria...
020
David @dav1dcg.bsky.social · 21/05/2026
Is alcohol just a depressant? Not quite. Our new study, now published in final form in #JNeurosci, shows that alcohol rapidly activates neurons in the prefrontal cortex (PFC), and this effect depends on dopamine. www.jneurosci.org/content/46/2...
jneurosci.org
Activation by Alcohol of Prefrontal Layer 5 Pyramidal Neurons Depends on Ascending Dopaminergic Input
Short-term alcohol exposure modulates activity in reward-related regions such as the ventral tegmental area (VTA) and executive cortical regions such as the prefrontal cortex (PFC), potentially contri...
220
David @dav1dcg.bsky.social · 10/05/2026
New voltage indicators from St-Pierre lab and collaborators: - FORCE1s: www.biorxiv.org/content/10.6... - JEDI3sub and JEDI3hyp: www.nature.com/articles/s41... Blog post about voltage imaging: spikesandbursts.wordpress.com/2018/11/06/v...
nature.com
Designer indicators for two-photon recording of subthreshold voltage dynamics - Nature Methods
The genetically encoded voltage indicators JEDI3sub and JEDI3hyp enhance monitoring of subthreshold neuronal activity in the awake mouse brain using a variety of two-photon microscopy techniques.
0126
David @dav1dcg.bsky.social · 10/05/2026
Tuft dendrites in frontal motor cortex enable flexible learning: www.science.org/doi/10.1126/...
050
David @dav1dcg.bsky.social · 10/05/2026
A functional influence based circuit motif that constrains the set of plausible algorithms of cortical function elifesciences.org/reviewed-pre...
elifesciences.org
A functional influence based circuit motif that constrains the set of plausible algorithms of cortical function
011
Reposted by David
Jonas Wietek @jwietek.bsky.social · 24/04/2026
Finally online @natmethods.nature.com www.nature.com/articles/s41... This was a fun collaboration with @finkryan.bsky.social @massecklab.bsky.social @tpatriarchi.bsky.social @martinfuhrmann.bsky.social @campbell-lab.bsky.social @jangrundemann.bsky.social 🧪🧠🔬🧬
nature.com
PinkyCaMP: an mScarlet-based calcium sensor with enhanced brightness, photostability and multiplexing capabilities - Nature Methods
PinkyCaMP is a red genetically encoded calcium indicator with improved brightness and photostability. Derived from mScarlet, it does not exhibit photoswitching upon blue light illumination and is ther...
58531
Reposted by David
Agnès Landemard @agnesland.bsky.social · 15/04/2026
How does blood flow relate to brain activity? We discovered that it reflects two neural populations affected oppositely by arousal. Together, they explain neurovascular coupling in all brain regions and brain states! Out today in Nature: rdcu.be/fdC2A @uclbrainscience.bsky.social
The supply of blood to brain tissue is thought to depend on the overall neural activity in that tissue, and this dependence is thought to differ across brain regions and across brain states. However, studies supporting these views have measured neural activity as a bulk quantity and related it to blood supply following disparate events in different regions. Here we measure fluctuations in neuronal activity and blood volume across the mouse brain, and find that their relationship is consistent across brain states and brain regions but differs in two opposing brainwide neural populations. Functional ultrasound imaging (fUSI) revealed that whisking, a marker of arousal, is associated with brainwide fluctuations in blood volume. Simultaneous fUSI and Neuropixels recordings showed that neurons that increase activity with whisking have distinct haemodynamic response functions compared with those that decrease activity. Their summed contributions predicted blood volume across states.Brainwide Neuropixels recordings revealed that these opposing populations coexist in the entire brain. Their differing contributions to blood volume largely explain the apparent differences in blood volume fluctuations across regions. The mouse brain thus contains two neural populations with opposite relations to brain state and distinct relationships to blood supply, which together account for brainwide fluctuations in blood volume.
314562
David @dav1dcg.bsky.social · 19/04/2026
Molecular and functional dissection using CaMPARI-seq reveals the neuronal organization for dissociating optic flow-dependent behaviors: www.nature.com/articles/s41...
nature.com
Molecular and functional dissection using CaMPARI-seq reveals the neuronal organization for dissociating optic flow-dependent behaviors - Nature Communications
In this study, the authors develop CaMPARI-seq to link neural activity with molecular profiles in larval zebrafish. They identify inhibitory pretectal neurons required for optomotor response, revealin...
000
David @dav1dcg.bsky.social · 19/04/2026
Infant Brains Tick at 4Hz – Resonance Properties of the Developing Visual System A ~4 Hz EEG response in infants (8-month-olds) emerges independently of visual stimulation frequency. elifesciences.org/reviewed-pre...
elifesciences.org
Infant Brains Tick at 4Hz – Resonance Properties of the Developing Visual System
010
David @dav1dcg.bsky.social · 19/04/2026
Developmental characteristics of spontaneous activity and functional connectivity in the fetal brain "As the fetal gestational age increased, spontaneous brain activity ↓ in the bilateral thalamus and ↑ in the bilateral anterior cingulate cortex." academic.oup.com/cercor/artic...
academic.oup.com
Developmental characteristics of spontaneous activity and functional connectivity in the fetal brain
Abstract. Investigating the developmental characteristics of fetal brain functional activity and connectivity is crucial for understanding normal developme
010
Reposted by David
Dr Ino Agrafioti @inoagrafioti.bsky.social · 16/04/2026
I don’t know if you saw the MASSIVE news announced by @erc.europa.eu today: from now on, if you get a B at step 1 you are eligible to apply at N+3(!!!) years. Say you got a B in STG2026 step 1, you thought you could apply in STG2028, but no: only in STG2029! erc.europa.eu/news-events/...
erc.europa.eu
Applying for an ERC grant in the 2027 competitions: what you need to know
The ERC plans to launch the grant competitions under its 2027 Work Programme between July 2026 and June 2027, with the calls for proposals introducing several changes to the eligibility rules for appl...
63428
David @dav1dcg.bsky.social · 12/04/2026
What happens in the prefrontal cortex when alcohol kicks in? Our new paper is out! We show that acute alcohol activates layer 5 pyramidal neurons in the prefrontal cortex, and that this activation requires dopaminergic signaling from the ventral tegmental area. www.jneurosci.org/content/earl...
jneurosci.org
Activation by alcohol of prefrontal layer 5 pyramidal neurons depends on ascending dopaminergic input
Short-term alcohol exposure modulates activity in reward-related regions such as the ventral tegmental area (VTA) and in executive cortical regions such as the prefrontal cortex (PFC), potentially con...
140
David @dav1dcg.bsky.social · 12/04/2026
Functional synaptic connectivity shapes spine stability in the hippocampus "Spines with large responses exhibited larger volume and higher stability compared to unresponsive spines." www.nature.com/articles/s41...
nature.com
Functional synaptic connectivity shapes spine stability in the hippocampus - Nature Communications
In this study, the authors find that synaptic strength predicts spine size and long-term stability via in vivo imaging together with optogenetic stimulation in awake mice. While individual synapses sh...
062
David @dav1dcg.bsky.social · 12/04/2026
Millimeter-scale selective amplification in the developing visual cortex "cortical networks are preferentially activated by inputs aligned to endogenous recurrent subnetworks" in the immature ferret visual cortex. www.biorxiv.org/content/10.6...
biorxiv.org
000
Reposted by David
Jimmy Dooley @jimmycdooley.bsky.social · 06/04/2026
New paper (with lots of cute animal videos!) Ever watch your dog "run" while asleep and wonder what’s going on in their brain? In Current Bio we suggest that those twitches aren't just leaky dreams—they’re a vital maintenance system for the most precise movements www.cell.com/current-biol...
cell.com
REM-sleep twitching in adults and the maintenance of specialized sensorimotor systems
Blumberg et al. present video evidence of twitching during adult sleep in a diverse sample of animals. Adult twitching appears to selectively involve appendages used for active sensing, mirroring thei...
36225
Reposted by David
Joao Barbosa @jbarbosa.org · 03/04/2026
Wanna do neuroscience in Paris but can't find interesting lab? Want to come do a sabbatical but don't know who to collaborate? Check this webpage aggregating ~all the neuroscience labs (+200) in Paris. ⚠️only the information of 'verified' profiles is reliable⚠️ Please retweet 🙏 parisneuro.fr
212771
David @dav1dcg.bsky.social · 02/04/2026
Full online version of our AnkG E35a paper is finally out! E35a is a microexon highly included in GABAergic neurons. Surprisingly, deleting E35a increases their excitability and Ca²⁺ activity without AIS changes, pointing instead to disruption of intracellular Ca²⁺. www.nature.com/articles/s41...
nature.com
A neuron type-specific microexon in Ank3/ankyrin-G modulates calcium activity and neuronal excitability - Nature Communications
Here researchers reveal a microexon in the Ank3 gene encoding Ankyrin G allows cortical interneurons to fine-tune calcium signaling and firing, revealing the contribution of alternative splicing to th...
0113
David @dav1dcg.bsky.social · 15/03/2026
The subiculum: cell-type-specific composition, computation, and function: www.cell.com/trends/neuro... "The subiculum, the primary hippocampal output region, exhibits rich excitatory neuron diversity that contributes to organizing information flow to downstream brain regions."
000
Reposted by David
Zebrafish Rock! @zebrafishrock.bsky.social · 15/03/2026
Youthful antics predict lifespan? Using machine learning & continuous recordings of #killifish behavior from adolescence until death, @brunetlab.bsky.social & @deisseroth.bsky.social find early-life behavior predicted future lifespan! Now published @science.org: www.science.org/doi/10.1126/... 🧪 1/2
35721
David @dav1dcg.bsky.social · 15/03/2026
Noradrenergic infraslow rhythm during sleep is the critical link between heart-rate dynamics and memory consolidation elifesciences.org/reviewed-pre...
elifesciences.org
Noradrenergic infraslow rhythm during sleep is the critical link between heart-rate dynamics and memory consolidation
000
David @dav1dcg.bsky.social · 15/03/2026
New blog post: Resources for faculty job applications and starting a new lab Suggestions are welcome! spikesandbursts.wordpress.com/2026/03/15/r...
spikesandbursts.wordpress.com
Resources for faculty job applications and starting a new lab
I will soon hit the academic job market, and hopefully not be crushed by it (the academic job market is tough!) Fortunately, there are now fantastic resources from researchers and institutions that…
001
David @dav1dcg.bsky.social · 04/03/2026
Take a look at the new "Python4Neuro_2026" notebooks with basic tutorials and exercises for patch-clamp and two-photon calcium imaging analysis in Python. You can launch the notebooks in Google Colab using the links in the README. github.com/dav1dcg/neur...
github.com
GitHub - dav1dcg/neuro-notebook-templates: Jupyter notebook templates for processing and analyzing neuroscience data.
Jupyter notebook templates for processing and analyzing neuroscience data. - dav1dcg/neuro-notebook-templates
040
David @dav1dcg.bsky.social · 15/02/2026
If you like AnkG and alternative splicing, check out how this newly identified Ank3 microexon mainly affects GABAergic neurons’ excitability without altering the AIS! Sincerely happy to have been part of this collaborative project captained by Chaolin Zhang! www.nature.com/articles/s41...
nature.com
A neuron type-specific microexon in Ank3/ankyrin-G modulates calcium activity and neuronal excitability - Nature Communications
Here researchers reveal a microexon in the Ank3 gene encoding Ankyrin G allows cortical interneurons to fine-tune calcium signaling and firing, revealing the contribution of alternative splicing to th...
010
David @dav1dcg.bsky.social · 15/02/2026
A human electrophysiological signature of Fragile X pathophysiology is shared in V1 of Fmr1-/y mice "...show in males with fragile X syndrome (FXS) that alpha oscillations in humans and alpha-like oscillations in the visual cortex of Fmr1-/y mice are slowed..." www.nature.com/articles/s41...
nature.com
A human electrophysiological signature of Fragile X pathophysiology is shared in V1 of Fmr1-/y mice - Nature Communications
Kornfeld-Sylla et al reveal how alpha brainwaves are altered in children and adults with Fragile X Syndrome (FXS) and find parallel changes in alpha-like rhythms in juvenile and adult FXS model mice, ...
000
David @dav1dcg.bsky.social · 15/02/2026
Triggering action potentials of a single neuron by multiphoton excitation elicits visually guided behavior "disruption of a single neuron within the ensemble temporarily paralyzes the entire ensemble and suspends behavioral responses to visual stimuli" www.nature.com/articles/s41...
nature.com
Triggering action potentials of a single neuron by multiphoton excitation elicits visually guided behavior - Nature Communications
Precise control of individual neuron firing is key for neuroscience. Here, the authors show a novel opsin-free photostimulation method that activates single neurons in vivo by femtosecond laser scanni...
031
David @dav1dcg.bsky.social · 15/02/2026
Visual experience exerts an instructive role on cortical feedback inputs to the primary visual cortex: doi.org/10.1016/j.cu... Dual color 2P to measure the tuning properties and retinotopic organization of inputs from the LM visual area in L1 of V1 in mice reared wearing goggles
010
Reposted by David
Carsen Stringer @computingnature.bsky.social · 12/02/2026
🔬🧠 Releasing the 1.0 version of #Suite2p and THE PAPER w/ @marius10p.bsky.social! Now with GPU acceleration. Want to use Suite2p but don’t have 100,000 neuron recordings? We show you how to get those with a standard 2p microscope #neuroscience #imaging #neuroAI www.biorxiv.org/content/10.6...
210136
Reposted by David
Carsen Stringer @computingnature.bsky.social · 09/02/2026
🚨 new work from the lab on how eye movements 👀 versus orofacial movements influence 🐭 visual cortex activity 🧠 #neuroscience #behavior #neuroAI
04611
David @dav1dcg.bsky.social · 08/02/2026
Muscarinic Acetylcholine Receptor Activators as Transformative Therapeutics for Schizophrenia Review Article www.annualreviews.org/content/jour...
annualreviews.org
Muscarinic Acetylcholine Receptor Activators as Transformative Therapeutics for Schizophrenia
While traditional antipsychotic drugs provide symptomatic relief for positive symptoms in patients with schizophrenia, many patients are refractory to traditional antipsychotics. Furthermore, these me...
000
David @dav1dcg.bsky.social · 08/02/2026
Rising Stars: In vivo monitoring of neurochemical dynamics by genetically encoded neuromodulator sensors www.sciencedirect.com/science/arti...
sciencedirect.com
Rising Stars: In vivo monitoring of neurochemical dynamics by genetically encoded neuromodulator sensors
Dr. Yulong Li received his undergraduate education in biophysics and physiology at Peking University, and subsequently completed his Ph.D. training un…
060
Reposted by David
Antoine Bergel @antbergel.bsky.social · 29/12/2025
⚠️ New paper alert and what a way to end 2025! 🎉 Happy to share our story “Sleep-dependent infraslow rhythms are evolutionarily conserved across reptiles and mammals.” published today in Nature Neuroscience. Sleeping dragons 🦎 and functional ultrasound! Read the full paper here: rdcu.be/eWJHb 1/8
rdcu.be
Sleep-dependent infraslow rhythms are evolutionarily conserved across reptiles and mammals
Nature Neuroscience - Bergel et al. show that an infraslow rhythm connecting the brain and body during sleep is shared by lizards, mammals and birds, revealing an ancestral process and reshaping...
310137
David @dav1dcg.bsky.social · 29/12/2025
Patch-clamp data analysis in Python: dataframes and statistics spikesandbursts.wordpress.com/2025/12/28/p...
spikesandbursts.wordpress.com
Patch-clamp data analysis in Python: dataframes and statistics
In this blog, you can find tutorials for analyzing electrophysiological properties using Python and the software Clampfit (see full list here). In the end, you generally get tabular data with numer…
120
David @dav1dcg.bsky.social · 21/12/2025
Spatially heterogeneous acetylcholine dynamics in the striatum promote behavioral flexibility Rewarded outcomes evoked phasic decreases in acetylcholine, whereas unexpected non-reward following reversal triggered widespread increases that predicted lose-shift behavior www.nature.com/articles/s41...
nature.com
Spatially heterogeneous acetylcholine dynamics in the striatum promote behavioral flexibility - Nature Communications
Striatal cholinergic interneurons promote flexible behavior by unknown mechanisms. Here, authors show that spatially heterogeneous acetylcholine signals promote adaptive lose-shift choices in response...
000
David @dav1dcg.bsky.social · 21/12/2025
Modulation of metastable ensemble dynamics explains the inverted-U relationship between tone discriminability and arousal in auditory cortex Tone discriminability exhibited an inverted-U with arousal, which could be reproduced in a clustered spiking network model. www.cell.com/neuron/abstr...
cell.com
Modulation of metastable ensemble dynamics explains the inverted-U relationship between tone discriminability and arousal in auditory cortex
Papadopoulos et al. report an inverted-U relationship between tone discriminability and arousal in mouse auditory cortex. A spiking network model with clustered connectivity explains the effects via m...
000
David @dav1dcg.bsky.social · 21/12/2025
Norepinephrine-mediated arousal fluctuations drive inverted U-shaped functional connectivity dynamics "we found arousal modulated inverted U-shaped global functional connectivity (FC) dynamics, peaking at middle arousal level" www.nature.com/articles/s41...
nature.com
Norepinephrine-mediated arousal fluctuations drive inverted U-shaped functional connectivity dynamics - Nature Communications
Tong and colleagues reveal a cross-species conserved mechanism where locus coeruleus-norepinephrine mediated arousal fluctuations drive an inverted U-shaped pattern of global functional connectivity, ...
010
David @dav1dcg.bsky.social · 21/12/2025
Intravital observation of neuronal and immune cell dynamics in the developing mammalian brain: www.cell.com/cell/fulltex... "intravital imaging of externally immobilized embryos (IMEE) method for long-term, large-field, and deep-depth imaging of mouse embryos"
000
David @dav1dcg.bsky.social · 08/12/2025
You can now find all the patch-clamp Python notebooks on the blog's GitHub: github.com/dav1dcg/spik... And a new Python tutorial for using the motion-correction feature of the CaImAn toolbox: github.com/dav1dcg/neur... Hope you find them useful! github.com/dav1dcg/spik...
github.com
GitHub - dav1dcg/spikesandbursts: Code from the neuroscience blog Spikes and Bursts
Code from the neuroscience blog Spikes and Bursts. Contribute to dav1dcg/spikesandbursts development by creating an account on GitHub.
030
Reposted by David
Nature Reviews Neuroscience @natrevneuro.nature.com · 13/11/2025
Time, space, memory and brain–body rhythms — a Perspective by György Buzsáki #neuroscience #neuroskyence www.nature.com/articles/s41...
nature.com
Time, space, memory and brain–body rhythms - Nature Reviews Neuroscience
Understanding how the brain represents experienced time and how representations of space and time are integrated to form episodic memories has been a goal of much neuroscientific research. In this Per...
05116
David @dav1dcg.bsky.social · 09/11/2025
REM sleep reduces subthreshold depolarization in cortical pyramidal neurons in a region-specific manner: doi.org/10.1016/j.ce... "NMDA receptors drive subthreshold depolarization specifically during REM sleep."
031
David @dav1dcg.bsky.social · 09/11/2025
Continuous cell-type diversification in mouse visual cortex development www.nature.com/articles/s41...
nature.com
Continuous cell-type diversification in mouse visual cortex development - Nature
A high-resolution transcriptomic and epigenomic cell-type atlas of the developing mouse visual cortex from embryonic to postnatal development is presented, providing a real-time dynamic molecular map ...
010
David @dav1dcg.bsky.social · 09/11/2025
Cracking the complexity of REM sleep www.cell.com/trends/neuro...
cell.com
Cracking the complexity of REM sleep
Rapid eye movement (REM) sleep is a unique state classically defined by brain activation and muscle paralysis. It is now recognized as a dynamic process involving coordinated oscillations and phasic b...
000
Reposted by David
allen institute @alleninstitute.org · 05/11/2025
More powerful tools for understanding the brain. 🧠🔍 Today, comprehensive, cross-species developing brain cell atlases were released to help advance health and disease research. 🧵 #studyBRAIN #BICAN
1179
Reposted by David
Pawel Burkhardt @pawelburkhardt.bsky.social · 27/10/2025
First neurons didn’t appear overnight. We trace their roots to ancient secretory cells - showing how lifestyle & behavior shaped the evolution of first synapses.🧠🌊 #Evolution #Neuroscience Our latest in @natrevneuro.nature.com Link: rdcu.be/eMX3E @jeffcolgren.bsky.social @msarscentre.bsky.social
rdcu.be
The evolutionary origins of synaptic proteins and their changing roles in different organisms across evolution
Nature Reviews Neuroscience - Recent studies have shed further light on the evolutionary origins of chemical synapses, In this Review, Colgren and Burkhardt explore how ancient proteins were...
4361139
David @dav1dcg.bsky.social · 26/10/2025
Illuminating calcium and potassium dynamics with red fluorescent sensors journals.plos.org/plosbiology/...
journals.plos.org
Illuminating calcium and potassium dynamics with red fluorescent sensors
Despite recent advances in green genetically encoded ion indicators, developments in red-shifted indicators have been slower. This Primer explores two recent studies in PLOS Biology that engineer red ...
030
Reposted by David
Richard Sever @richardsever.bsky.social · 25/10/2025
That merely being “under review” by a Nature family journal is offered as a quality proxy for a paper is a tragic illustration of the extent to which academia is addicted to brands and outsources evaluation
1730260
Reposted by David
Piali Sengupta @senguptalab.bsky.social · 23/10/2025
TT faculty job opening in #Neuroscience! We are looking for a colleague to join us in our fantastic Biology Department and Neuroscience Program at Brandeis. We are a group of *very* collaborative, supportive, and productive scientists (& humans!) so please apply academicjobsonline.org/ajo/jobs/30961
academicjobsonline.org
Brandeis University, Biology Department
Job #AJO30961, Assistant Professor in Biology and Neuroscience Program, Biology Department, Brandeis University, Waltham, Massachusetts, US
186101
David @dav1dcg.bsky.social · 19/10/2025
In case someone finds it more useful, I am starting to upload the code from the blog’s patch-clamp tutorials to GitHub. Check it out! github.com/dav1dcg/spik...
github.com
GitHub - dav1dcg/spikesandbursts: Code from the neuroscience blog Spikes and Bursts
Code from the neuroscience blog Spikes and Bursts. Contribute to dav1dcg/spikesandbursts development by creating an account on GitHub.
150