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Posts by Seneca Scott

Book jacket for the novel Recursion by Blake Crouch - a neuroscience research sci-fi thriller about memory and time travel.

Book jacket for the novel Recursion by Blake Crouch - a neuroscience research sci-fi thriller about memory and time travel.

Was aiming for fast fiction for spring break, but hitting “engram” in the first bits made me wonder if I’d find it ridiculous knowing so much about memory research myself, but I enjoyed it and felt super cool to personally know @okaysteve.bsky.social when finding him in the Acknowledgement :)

2 weeks ago 10 4 1 0

I feel called out hahaha

1 month ago 0 0 0 0

Preprint link isn't all there - looking forward to checking this out!

1 month ago 0 0 1 0
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Vectorized instructive signals in cortical dendrites - Nature Mice learning a neurofeedback brain–computer interface task show neuron-specific teaching signals in cortical dendrites, consistent with a vectorized solution for credit assignment in the brain.

Nature research paper: Vectorized instructive signals in cortical dendrites

go.nature.com/3MPQwsG

1 month ago 14 2 0 0

🚀 New preprint from the lab! Our first foray into the subiculum uses in vivo whole-cell recordings to show that dendritic plateaus are a prominent, learning-dependent signaling mode of subicular neurons. Feedback is welcome!

www.biorxiv.org/content/10.6...

2 months ago 44 22 2 0
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🔬🧠 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...

2 months ago 100 35 2 2

Projection-specific Routing of Odor Information in the Olfactory Cortex www.biorxiv.org/content/10.64898/2025.12...

4 months ago 5 3 0 0
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Attention-like regulation of theta sweeps in the brain's spatial navigation circuit Spatial attention supports navigation by prioritizing information from selected locations. A candidate neural mechanism is provided by theta-paced sweeps in grid- and place-cell population activity, which sample nearby space in a left-right-alternating pattern coordinated by parasubicular direction signals. During exploration, this alternation promotes uniform spatial coverage, but whether sweeps can be flexibly tuned to locations of particular interest remains unclear. Using large-scale Neuropixels recordings in freely-behaving rats, we show that sweeps and direction signals are rapidly and dynamically modulated: they track moving targets during pursuit, precede orienting responses during immobility, and reverse during backward locomotion — without prior spatial learning. Similar modulation occurs during REM sleep. Canonical head-direction signals remain head-aligned. These findings identify sweeps as a flexible, attention-like mechanism for selectively sampling allocentric cognitive maps. ### Competing Interest Statement The authors have declared no competing interest. European Research Council, Synergy Grant 951319 (EIM) The Research Council of Norway, Centre of Neural Computation 223262 (EIM, MBM), Centre for Algorithms in the Cortex 332640 (EIM, MBM), National Infrastructure grant (NORBRAIN, 295721 and 350201) The Kavli Foundation, https://ror.org/00kztt736 Ministry of Science and Education, Norway (EIM, MBM) Faculty of Medicine and Health Sciences; NTNU, Norway (AZV)

The hippocampal map has its own attentional control signal!
Our new study reveals that theta #sweeps can be instantly biased towards behaviourally relevant locations. See 📹 in post 4/6 and preprint here 👉
www.biorxiv.org/content/10.6...
🧵(1/6)

2 months ago 184 62 4 10
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Videos Contradict U.S. Account of Minneapolis Shooting by Federal Agents See how immigration officers escalated a fatal confrontation on Saturday.

Worth noting that the @wsj.com has joined with the @nytimes.com and Bellingcat to say that ICE is lying in its description of the shooting of Alex Pretti. The video evidence more and more supports the view that this was a gratuitous execution. www.wsj.com/us-news/vide...

2 months ago 2069 666 46 37

ICE has now carried out two summary executions of innocent people in the streets of an American city.

If you work for ICE, there's no denying that's the mission you're supporting now. You don't get to claim in one year or ten or twenty that you didn't know what ICE was doing. You're complicit.

2 months ago 20821 7034 518 260
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Why does life explore so few of the forms it could possibly take? Using fractal descriptors, this #scienceadvances paper shows that Earth’s biosphere clusters around simple shapes, reflecting deep evolutionary constraints. @artemyte.bsky.social @manlius.bsky.social www.science.org/doi/pdf/10.1...

3 months ago 229 76 5 6
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Dual cholinergic mechanisms for sculpting striatal dopamine in vivo Striatal dopamine (DA) and acetylcholine constitute a computationally powerful neuromodulatory dyad that orchestrates action selection, motivational vigor, and reward learning. Striatal cholinergic in...

Excited to share latest study from the lab by an amazing RA, Dylan Flink.

We solved a small (important) puzzle while in the trenches of a larger (wavy 🌊) puzzle.

www.biorxiv.org/content/10.6...
🧵...

3 months ago 35 12 5 1
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Pre-print 🧠🧪
Is mechanism modeling dead in the AI era?

ML models trained to predict neural activity fail to generalize to unseen opto perturbations. But mechanism modeling can solve that.

We say "perturbation testing" is the right way to evaluate mechanisms in data-constrained models

1/8

1 year ago 125 48 4 3
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Modular Organization of Electrical Fluctuations in the Mouse Brain A powerful computational feature of the brain is its ability to compartmentalize different functions in a way that can be flexibly recombined. Experimental evidence for such modularity arose from cyto...

Link to the paper I talked about: www.biorxiv.org/content/10.1...

4 months ago 7 4 0 0
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Live updates: Two deceased in active shooter incident at Brown University Serving the Brown University community since 1891

Kudos to the Brown University students who are posting continuous live updates, spaced just minutes apart, on the campus shooting. A lot of grace and professionalism under immense pressure.

www.browndailyherald.com/article/2025...

4 months ago 2746 690 32 29

An Amygdalar Oscillatory Switch Governs Valence Assignment www.biorxiv.org/content/10.64898/2025.12...

4 months ago 1 1 0 0
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Our group has been looking at beta bursts for the last 5 years, but we do it a little differently than most - we group into types them based on their waveforms. In this open access article we lay out why and what we think this might mean
journals.sagepub.com/doi/10.1177/...
#neuroskyence

4 months ago 61 22 1 0

Oh look we are still having this debate

bsky.app/profile/behr...

bsky.app/profile/behr...

4 months ago 14 1 2 0
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A cholinergic mechanism orchestrating task-dependent computation across the cortex In an ever-changing environment, animals often need to switch between performing different tasks involving distinct sets of cognitive processes. Many such tasks involve neural activity distributed acr...

The basal forebrain plays the cortex like a piano.

4 months ago 68 12 2 1
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Impact of precisely-timed inhibition of gustatory cortex on taste behavior depends on single-trial ensemble dynamics Primary taste cortex does far more than code tastes by turning taste codes into motor commands via population dynamics.

Very cool work! It’s super exciting to see these bifurcation dynamics in higher order regions. Seems parsimonious with work from the Katz lab on attractor state transitions in primary taste cortex!

elifesciences.org/articles/45968

5 months ago 0 0 0 0

Infraslow histaminergic dynamics govern priming states to gate moment-to-moment memory accessibility www.biorxiv.org/content/10.1101/2025.11....

5 months ago 0 2 0 0
A Neuromodulatory Circuit Amplifies Object-based Head-direction Tuning for Spatial Memory While the head-direction (HD) system is well-established as the brain’s internal compass, the mechanisms that allow it to be flexibly shaped by landmarks have remained unclear. Here we discovered that...

Great study showing how histaminergic signaling shapes head-direction cell activity in the presence of objects, with important implications for how animals get oriented. A huge amount of work, really impressive.

www.researchsquare.com/article/rs-7...

5 months ago 8 1 0 0
Brandeis University, Biology Department Job #AJO30961, Assistant Professor in Biology and Neuroscience Program, Biology Department, Brandeis University, Waltham, Massachusetts, US

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

5 months ago 86 102 1 3
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It’s not the thought that counts: Allostasis at the core of brain function The authors review evidence that the primary function of the brain, supported by distributed neural systems, is the predictive regulation of physiology (i.e., allostasis). An example from Alzheimer’s ...

It’s not the thought that counts: Allostasis at the core of brain function: Neuron www.cell.com/neuron/fullt...

This looks super cool; by @jtheriault.bsky.social
By the way congrats really!

6 months ago 15 9 1 0
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Meningeal macrophages exhibit diverse calcium signaling at steady-state and in response to aberrant cortical hyperexcitability in awake mice The meninges, which envelop and protect the brain, host a large number of resident macrophages that play a crucial role in regulating homeostasis and neuroinflammation. Intracellular Ca2+ signaling me...

A new preprint out from the Levy lab, adding knowledge to the exciting world of brain border macrophages and neuroimmunology.
www.biorxiv.org/content/10.1...

6 months ago 9 6 1 1
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Amygdala–liver signalling orchestrates glycaemic responses to stress Nature - Studies in mice show that acute stress activates hyperglycaemia via activation of a medial amygdala–ventral hypothalamic circuit that controls glucose metabolic responses in the...

Excited to share that my PhD work has been published! www.nature.com/articles/s41... 🧠🧪

7 months ago 31 8 1 0

Vascular draining confounds laminar decoding in fMRI www.biorxiv.org/content/10.1101/2025.08....

7 months ago 12 8 0 4
Abstract

Oxytocin is a neuropeptide that has historically been recognised for its role in childbirth, lactation, and sexual reproduction. Subsequently, research expanded its influence to include social bonding and behaviors, emphasising its role in facilitating interpersonal relationships. More recent studies, however, have revealed its broader influence, extending to non-social behaviors and cognitive processes, underscoring its ability to modulate a diverse array of behavioral and mental functions. This evolving understanding calls for a critical re-evaluation of oxytocin’s classification as a “social” hormone. The Allostatic Theory of Oxytocin, which integrates both psychological and physiological dimensions, provides an alternative framework that accounts for how oxytocin modulates both social and non-social behaviors. At the core of this framework is behavioral flexibility, which is essential for adapting to dynamic environments. In this review, we explore the role of oxytocin in facilitating behavioral and cognitive flexibility using mechanistic, survival, and evolutionary perspectives. Additionally, we focus on the interactions between oxytocin and other signalling systems that influence behavioral flexibility. Collectively, our findings underscore the benefits of reframing oxytocin’s function in behavior within a broader framework that encompasses both social and non-social aspects. This more expansive perspective not only deepens our understanding of oxytocin’s multifaceted roles but also opens avenues for novel research approaches.

Abstract Oxytocin is a neuropeptide that has historically been recognised for its role in childbirth, lactation, and sexual reproduction. Subsequently, research expanded its influence to include social bonding and behaviors, emphasising its role in facilitating interpersonal relationships. More recent studies, however, have revealed its broader influence, extending to non-social behaviors and cognitive processes, underscoring its ability to modulate a diverse array of behavioral and mental functions. This evolving understanding calls for a critical re-evaluation of oxytocin’s classification as a “social” hormone. The Allostatic Theory of Oxytocin, which integrates both psychological and physiological dimensions, provides an alternative framework that accounts for how oxytocin modulates both social and non-social behaviors. At the core of this framework is behavioral flexibility, which is essential for adapting to dynamic environments. In this review, we explore the role of oxytocin in facilitating behavioral and cognitive flexibility using mechanistic, survival, and evolutionary perspectives. Additionally, we focus on the interactions between oxytocin and other signalling systems that influence behavioral flexibility. Collectively, our findings underscore the benefits of reframing oxytocin’s function in behavior within a broader framework that encompasses both social and non-social aspects. This more expansive perspective not only deepens our understanding of oxytocin’s multifaceted roles but also opens avenues for novel research approaches.

I think it's time to retire the idea that oxytocin is exclusively a 'social' hormone.

In our latest preprint, led by @kjerstimw.bsky.social, we argue that oxytocin should be reframed as a behavioral flexibility hormone osf.io/preprints/os...

8 months ago 35 14 0 1
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Brain endothelial gap junction coupling enables rapid vasodilation propagation during neurovascular coupling Vasodilatory signals are rapidly communicated across long distances by endothelial-endothelial gap junctions, enabling coordinated dilation of the arterial network during neurovascular coupling.

We’re excited to share our recent study published in @cellpress.bsky.social! In this work, we show that brain endothelial cells, connected by gap junctions, form a signaling highway to enable fast, long-range arterial vasodilation in neurovascular coupling.

You can find it below:

8 months ago 16 3 3 1

Astrocytes connect specific brain regions through plastic gap junctional networks www.biorxiv.org/content/10.1101/2025.07....

8 months ago 15 5 1 4