Russell Epstein
@russellepstein.bsky.social
370 followers 260 following 49 posts
Cognitive neuroscientist at UPenn. Interested in scenes, memory, space. Occasionally thinks about other things.
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russellepstein.bsky.social
Interested in navigation, VR, fMRI, aging? Here's a great postdoc opportunity in @stevenmweisberg.bsky.social's new lab at U Texas Arlington.
stevenmweisberg.bsky.social
🚨The SCANN Lab @ UTA is hiring a postdoctoral researcher!🚨

Topics: 🧭 spatial navigation, 🧠 fMRI, 🎮 VR, 👵 cognitive aging.

Start date: Nov 2025 (flexible).

Salary: NIH levels.

Details 👇
Flyer detailing information about the position, compensation, and requirements. 

If you need alt-text details to apply for this position, please email Steven Weisberg at steven dot weisberg @ uta dot edu for more information! We'd love to have you on board :)
russellepstein.bsky.social
Our new paper Cognitive maps for hierarchical spaces in the human brain is out in Cerebral Cortex! Work by first-author Michael Peer.

academic-oup-com.proxy.library.upenn.edu/cercor/artic...
russellepstein.bsky.social
Thanks for the post. You knew that it was out before we did!
russellepstein.bsky.social
I downloaded an electronic version this summer and started to read it...many, many good chapters. I can highly recommend!
russellepstein.bsky.social
This work builds on an extensive line of previous fMRI studies on heading codes (by @wolberslab.bsky.social, @doellerlab.bsky.social, @matthiasnau.bsky.social, @hugospiers.bsky.social, Baumann & Mattingley, Kim & Maguire + others). It was a LONG time in the making so we are thrilled to see it out!!!
russellepstein.bsky.social
When we looked at the model weights, we found that voxelwise peaks were distributed across all directions (like a compass), but the voxelwise troughs tended to be aligned with the main axis of the space. The latter result was unexpected and we think it’s pretty cool!
russellepstein.bsky.social
These heading codes generalized across perceptually different versions of the city, different locations in the city, and different phases of the taxi-cab task—thus fulfilling the expected characteristics of a “neural compass”.
russellepstein.bsky.social
We found heading-related response in retrosplenial complex (RSC) and superior parietal lobe (SPL). This is nicely consistent with previous studies that observed heading codes in these regions using trial-based designs.
russellepstein.bsky.social
How do we keep track of our sense of direction during navigation? Head direction cells in rodents are well-studied, but what about humans? To answer this question, we used an encoding model to analyze fMRI responses while participants performed a “taxi-cab” task in a VR city.
russellepstein.bsky.social
Our new paper, “A neural compass in the human brain during naturalistic human navigation” is out in @sfnjournals.bsky.social! First-author @zhenganglu.bsky.social led the charge, with Josh Julian and collaborator @gkaguirre.com.

www.jneurosci.org/content/earl...
russellepstein.bsky.social
"Things the reviewers care more about than we do" + "Things we care about, but we're pretty sure you don't"
russellepstein.bsky.social
This is some very cool work that @ainsleybonin.bsky.social did at Colby College, working with Derek Huffman. If you are fortunate enough to be at CogSci, give it a look.
ainsleybonin.bsky.social
If you’re heading to SF for #CogSci2025 this week and are interested in mobile EEG or spatial memory, come check out my talk on Thursday! (Talks 11: EEG, 2:15pm, Salon 5).
Reposted by Russell Epstein
bradlander.bsky.social
The mass starvation & killing of Palestinians in Gaza at the hands of the Israeli gov’t is a chillul hashem, a desecration of God.

Jewish leaders who criticized Zohran Mamdani for three words he doesn’t use should raise their voices loudly here as well.
forward.com/opinion/7575...
Gaza is starving. Where are the American Jewish leaders?
A fear of being labelled antisemitic still deters American Jews and Jewish institutions from taking a position that is morally correct.
forward.com
russellepstein.bsky.social
Supposedly AI is going to take over the world, but I just spent 30 minutes unsuccessfully trying to get ChatGPT to change the axis labels of a chart. Which it kept failing to do, each time saying "now I've done what you asked!" without changing a thing. So I am skeptical.
russellepstein.bsky.social
This little document is immensely helpful.
neurograce.bsky.social
Just sent this as an email to my department but figured I'd share more broadly in case it is useful. This describes the procedure happening now for science funding in Congress (@davidimiller.bsky.social can correct me if I got this wrong). Importantly, there are still actions that can be taken.
Science Funding Process
=====Written July 11 2025====== Hi all, Just wanted to share some information that is likely relevant to a lot of us, but not always easy to understand, about federal science budget procedure (feel f...
docs.google.com
russellepstein.bsky.social
Super cool! Sending you best wishes for a safe trip and many moments of brilliant insight.
Reposted by Russell Epstein
rbreich.bsky.social
Democracies do not use their military to try and intimidate their own citizens with “shows of presence”.

This is fascism.
reichlinmelnick.bsky.social
Military documents confirm that the LA operation today was a “show of presence” intended to send a message to LA residents about the power of the federal government.

After staging with armed soldiers and Border Patrol agents on horse, they packed up and left after a short walk.
Per the briefing:
"On order, 1-18th Cavalry Squadron provides static interagency site protection, mounted mobile security, and Joint Force Land Component Command UFLCC) Reserve support to Customs and Border Patrol (CRP) and supporting federal agencies, whose intent at MacArthur Park is to demonstrate, through a show of presence, the capacity and freedom of maneuver or federal law enforcement within the Los Angeles Joint Operations Area (JOA)."
Reposted by Russell Epstein
muellershewrote.com
We’ve bombed Iran. And dismantled our joint terrorism task force. And sent a third of the FBI to help ICE. And gutted the National Security Council. And a drunk guy is in charge at the pentagon. And our intelligence allies probably won’t share intel with us. Because people couldn’t vote for a woman.
russellepstein.bsky.social
Thank you for doing what is right.
russellepstein.bsky.social
Best footnote ever.
mjsdc.bsky.social
Justice Jackson taking on Gorsuch's "pure textualism" and arguing for a more holistic reading of Congress' handiwork—worth reading in full. www.supremecourt.gov/opinions/24p...
The majority’s contention that I reject “ ‘pure textualism’ [a]s insufficiently pliable to secure the result [I] seek,” ante, at 10, stems from an
unfortunate misunderstanding of the judicial role. Our interpretative
task is not to seek our own desired results (whatever they may be). And,
indeed, it is precisely because of this solemn duty that, in my view, it is
imperative that we interpret statutes consistent with all relevant indicia
of what Congress wanted, as best we can ascertain its intent. A methodology that includes consideration of Congress’s aims does exactly that—
and no more. By contrast, pure textualism’s refusal to try to understand
the text of a statute in the larger context of what Congress sought to
achieve turns the interpretive task into a potent weapon for advancing
judicial policy preferences. By “finding” answers in ambiguous text, and
not bothering to consider whether those answers align with other sources
of statutory meaning, pure textualists can easily disguise their own preferences as “textual” inevitabilities. So, really, far from being “insufficiently pliable,” I think pure textualism is incessantly malleable—that’s
its primary problem—and, indeed, it is certainly somehow always flexible enough to secure the majority’s desired outcome.
russellepstein.bsky.social
Democracy...use it or lose it. There are hundreds of events planned all across the country on June 14. Find one near you. Trump can't send the Marines to all of them. app.sosha.ai/s/lmwrRNh3
Join me on June 14
app.sosha.ai
russellepstein.bsky.social
I signed this letter and I urge all my colleagues to do the same. I am very impressed by the bravery of the NIH staff who put their names to this. We should stand behind them. It's the least we can do.
standupforscience.bsky.social
(5/5)

🚨 It’s time to flood the zone.

NIH scientists just took a huge risk speaking out. Now it’s our turn.

📜 Read the Bethesda Declaration
✍️ Sign the Public Letter of Support
👯‍♀️Follow NIHers doing the work: @nihvigils.bsky.social

Read and sign here 👉 www.standupforscience.net/bethesda-dec...
www.standupforscience.net
Reposted by Russell Epstein
volts.wtf
The political theory behind IRA was roughly as follows: We have lost control of the information landscape and can no longer win rhetorical or purely political battles; however, if we make substantive policy progress that directly touches voters' lives, they will notice and reward us.
russellepstein.bsky.social
Very interesting. At a minimum, it suggests that a good exercise is to put one's own manuscripts through a LLM review, to see what it comes up with.