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David Barack

@dlbarack.bsky.social

Philosopher and neuroscientist | Studying inquiry and foraging | Conceptual and theoretical foundations of cognition | #T1D

2,552 Followers  |  743 Following  |  339 Posts  |  Joined: 09.08.2023  |  2.21

Latest posts by dlbarack.bsky.social on Bluesky

Promotional poster for the XIV Workshop on Philosophy of Biology and Cognitive Sciences. The poster features a dark green background with stylized yellow and red floral illustrations around the edges. Large yellow text announces the workshop title. The event will take place 18–19 June at UNED, Edificio de Humanidades, Paseo de la Senda del Rey 7, Madrid. The keynote speakers listed are Alejandro Fábregas-Tejeda (KU Leuven), Enara García (SDU), and José Antonio Pérez-Escobar (UNED). The poster highlights a Call for Abstracts (CfA) with an extended deadline of 1st February. Contact information is provided at xivpbcs@gmail.com

Promotional poster for the XIV Workshop on Philosophy of Biology and Cognitive Sciences. The poster features a dark green background with stylized yellow and red floral illustrations around the edges. Large yellow text announces the workshop title. The event will take place 18–19 June at UNED, Edificio de Humanidades, Paseo de la Senda del Rey 7, Madrid. The keynote speakers listed are Alejandro Fábregas-Tejeda (KU Leuven), Enara García (SDU), and José Antonio Pérez-Escobar (UNED). The poster highlights a Call for Abstracts (CfA) with an extended deadline of 1st February. Contact information is provided at xivpbcs@gmail.com

Final days to submit an abstract to #PBCS2026! If you are an early-career scholar looking for a supportive environment to discuss your work & meet international peers, consider applying! Another plus this year: The workshop will be in Madrid! sites.google.com/view/xivpbcs... #HPbio #philsci #philsky

31.01.2026 15:05 — 👍 36    🔁 17    💬 0    📌 0

every epstein file drop underscores how elite power operates through shared socio-economic networks, regardless of people's ideological differences, populist posturing, or public feuds

30.01.2026 23:58 — 👍 30019    🔁 6557    💬 389    📌 310

Cool paper

28.01.2026 23:54 — 👍 6    🔁 0    💬 0    📌 0
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)

28.01.2026 10:03 — 👍 177    🔁 62    💬 2    📌 10
Preview
Episodic memory facilitates flexible decision-making via access to detailed events - Nature Human Behaviour Nicholas and Mattar found that people use episodic memory to make decisions when it is unclear what will be needed in the future. These findings reveal how the rich representational capacity of episod...

Our experiences have countless details, and it can be hard to know which matter.

How can we behave effectively in the future when, right now, we don't know what we'll need?

Out today in @nathumbehav.nature.com , @marcelomattar.bsky.social and I find that people solve this by using episodic memory.

23.01.2026 13:18 — 👍 117    🔁 44    💬 7    📌 2
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*Multi-region computations in the brain*
When two regions are better than one...
doi.org/10.1016/j.ne...
#neuroskyence

23.01.2026 18:14 — 👍 50    🔁 14    💬 2    📌 0

due date is about a month away 👀

25.01.2026 02:26 — 👍 5    🔁 3    💬 0    📌 0

Alex Pretti was a colleague at the VA. We hired him to recruit for our trial. He became an ICU nurse- I lover working with him. He was a good kind person who lived to help and these fuckers executed him.

White. Hot. Rage.

24.01.2026 19:31 — 👍 60723    🔁 18977    💬 1406    📌 745
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Aaaand we're back!!

Two Postdocs in Philosophy of Mind (one ot two years), Centre for Philosophical Psychology, University of Antwerp

- to work with me!

Deadline: March 20, 2026

More info on PhilJobs

22.01.2026 16:42 — 👍 55    🔁 34    💬 1    📌 3
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What kinds of cognitions are possible? Are there discrete classes of cognition? Here's our new paper with @brigan.bsky.social @jordiplam.bsky.social @mitibennett.bsky.social @mkhochb.bsky.social and @drmichaellevin.bsky.social arxiv.org/abs/2601.12837 We explore basal, neural and human-AI spaces.

21.01.2026 10:06 — 👍 61    🔁 24    💬 1    📌 0

This is wild

19.01.2026 05:09 — 👍 2    🔁 0    💬 0    📌 0
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🧠 CALL FOR SYMPOSIA ABSTRACTS 🌴 SPAN is now accepting abstracts for a special session at the PSA. Put a group and a topic together and submit your idea via email by March 1st 🥳

15.01.2026 00:25 — 👍 8    🔁 3    💬 0    📌 2
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The 52nd annual meeting of the SPP will be at JHU, June 17-20

📣 Submit your work by January 16! 📣

09.01.2026 14:09 — 👍 30    🔁 14    💬 1    📌 1

like are you fucking kidding me

09.01.2026 05:11 — 👍 2    🔁 0    💬 0    📌 0

I'm sick of this shit. when will the elected representatives of this country, republican or democratic, fucking stop the federal government from shooting us

09.01.2026 05:11 — 👍 4    🔁 0    💬 1    📌 0
Preview
On a New Content Indeterminacy Problem in Neuroscience By Caitlin MaceDepartment of History and Philosophy of ScienceUniversity of Pittsburgh Find Caitlin’s recently published paper in Philosophical Psychology here. Abstract Whether neurons repre…

New Post on The FEEDBACK by Caitlin Mace (University of Pittsburgh)! Check it out and leave a comment if you have something to say! 🥳

thefeedback.blog/2026/01/06/o...

07.01.2026 01:46 — 👍 6    🔁 2    💬 0    📌 1

Hey everyone at the Eastern--come check us out tomorrow morning!

08.01.2026 02:13 — 👍 1    🔁 0    💬 1    📌 0

The nytimes has become (or always was?) the single biggest purveyor of profascist propaganda. I need a liberal rag

08.01.2026 01:21 — 👍 5    🔁 0    💬 0    📌 0
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Her name was Renee Good. She was only 37. She was a mother of a 6 year old child. And today in Minneapolis, MN, an ICE fascist shot her dead point blank.

Sending all my love to her child and her family.

Abolish ICE. Abolish fascism. Abolish tyranny.
qasimrashid.substack.com/p/how-to-pro...

08.01.2026 00:35 — 👍 425    🔁 139    💬 7    📌 8

Not super fun to think about the degree to which literal brain damage is setting the American agenda at the moment

08.01.2026 00:53 — 👍 1852    🔁 255    💬 82    📌 2
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Two tenure-track Assistant Professor positions are now open in the Department of Philosophy at Trinity College Dublin, in Value Theory and in the Philosophy, History and Ethics of Science. Closing dates: 19 & 30 Jan 2026.

Further details here ⬇️
tinyurl.com/2s3n2wnk

18.12.2025 21:10 — 👍 20    🔁 16    💬 1    📌 1
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We are excited to announce the 2026 GRC Neurobiology of Cognition (7/19-24) in beautiful Waterville Valley, NH! Registration/abstract submission open. Wonderful speakers/program covering cognition across scales & species, incl. AI & neuromodulation! @desrocherslab.bsky.social @erinlrich.bsky.social

06.01.2026 00:06 — 👍 36    🔁 14    💬 1    📌 2

Hey philosophers—going to the Eastern APA? Check out the special #SPAN session on Thursday at 11a! Featuring @kenaizawa.bsky.social @felipedebrigard.bsky.social @johnwkrakauer.bsky.social

06.01.2026 19:58 — 👍 12    🔁 2    💬 0    📌 0
Preview
Neural representations of visual memory in inferotemporal cortex reveal a generalizable framework for translating between spikes and field potentials Translating neurophysiological findings requires understanding the relationship between common measures of brain activity in animals (spiking activity) and humans (local field potentials, LFP). Prior ...

🚨 New preprint!

Why do some insights from spikes translate to field potentials while others don't? In this paper we compare visual memory representations in spikes and LFPs to propose a general framework that answers this question.

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

🧵 (1/10)

🧠🟦 🧠💻

05.01.2026 15:21 — 👍 107    🔁 33    💬 3    📌 5

What distinction

05.01.2026 00:12 — 👍 8    🔁 0    💬 1    📌 0

Some polling:
Invading Venezuela - 19% approve, 60% disapprove
OK to go w/o Congressional approval - 11% yes, 74% no
👇

03.01.2026 14:27 — 👍 1207    🔁 480    💬 62    📌 29

May your year be blessed with accepts subject to minor corrections.

01.01.2026 07:30 — 👍 276    🔁 42    💬 3    📌 0

Check it out!

01.01.2026 03:43 — 👍 9    🔁 0    💬 0    📌 0

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