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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Ya’el Courtney, PhD @scienceyael.bsky.social · 10/07/2026

HHMI released the official 2027 Gilliam Fellowship details, and a lot changed. Deadline's earlier this cycle: Oct 27. Int'l & MD-PhD students now eligible. Stipend up to 50K. New postdoc pathway adds up to 7 yrs of support. No Journal names!!!! www.yaelcourtney.com/resources-an...

yaelcourtney.com

2027 HHMI Gilliam Fellowship: New Deadline, Eligibility, and Award Changes — Ya'el Courtney

HHMI's 2027 Gilliam Fellowship guide is out. What changed: an earlier October 27 deadline, expanded eligibility, a higher stipend, and a new postdoc pathway.

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 03/08/2026

caring for an aging parent and finishing a phd is kind of like the advanced version of a kick flip i think (i do not know how to skateboard)

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 21/01/2026

neuroscience rlly be like but what if.................box

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 21/01/2026

I've been doing research on particular schedules of intermittent reinforcement for a minute now and it's only dawned on me like /yesterday/ that the reason why we get such a big uptick in operant papers in the early 90s is bc MedAssociates releases their user programmable boxes in like 88'

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 25/11/2025

I spend a non-trivial amount of time playing a game in my head when I'm idling around for experiments to finish where I imagine two flavors and then imagine what they'd taste like together. taste models?

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

christine liu / two photon art @christineliu.art · 24/11/2025

$15k stipend to support 9 weeks of full time summer research! For rising juniors/seniors who are able to travel to and obtain housing at the location of the lab they are placed in! I did an HHMI summer experience in 2013 and it changed everything for me! Apply…or tell someone to apply! 🧪🧠

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 16/11/2025

the prize for bingo is friendship 🥰 #sfn2025 #sfn i'm making sure I say hi to people I don't get to see too often @sfn.org

a very blurry picture of a sheet with the words "SFN Friends Bingo" on it with a cute axolotol and frog and rat on it. Behind are some booths at society for neuroscience 2025

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Alicia Izquierdo @aliciaizquierdo.bsky.social · 12/11/2025

Looking forward to SfN in San Diego ☀️ Come visit our posters and Nano talk!

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Nicole Rust @nicolecrust.bsky.social · 07/11/2025

Please help spread the word to all who will be in San Diego on Sunday, Nov. 16th. As part of SFN, SFN's scicomm arm is sponsoring an event. It's me, Shrek Chalasani (Salk), Kumar Narayanan (UIowa) and the brainfacts.org team. Short talks; trivia; lots of fun. Join us! It's free. Register here.

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Artologica aka Michele Banks @artologica.net · 11/11/2025

All the artists showing work at #SfN25, now with pictures! #sciart

open.substack.com

SfN 2025 Art of Neuroscience

Full list of Exhibitors

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Tracy Bale @thebalelab.bsky.social · 07/11/2025

Really disappointing that our #NIH colleagues will NOT be at @sfn.org this year, will NOT be discussing science, will NOT be advising us on grants, will NOT be sharing results or advancing research. 🤐

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 05/11/2025

It's conference season! #SfN2025 See my poster from the @aliciaizquierdo.bsky.social and Wikenheiser labs @sfn.org on Tuesday @ 1-3pm. ☀️ DM me to meet up in beautiful San Diego ☀️

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 04/11/2025

(4/4) I'm doing a couple more experiments before I finish up my PhD & oooweee it's nice to use a task that rats learn quickly w/ a lot of interesting outputs. Work done in part thanks to @hhmi.org w/ the best collab btwn @aliciaizquierdo.bsky.social & Andrew Wikenheiser. best co-mentorship eva!

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 04/11/2025

(3/4) A couple years back, Andrew and I were talking about how PR, given a consistent work rate, kinda looked like a depleting patch (re: foraging). Now, applying optimality modeling, we find that our rats "overharvest" similarly to (other) patch-leaving tasks 🤯.

Rats' strategies were correlated with, but systematically greater than, the optimal bout length. The model-determined optimal bout length is plotted against the median bout length observed in each session. Observed bout length was strongly correlated with the model-predicted optimal bout length. However, nearly all points fall above the dashed unity line, indicating that rats frequently performed longer bouts than predicted by the model. Histograms along the x- and y-axis show density estimates computed separately for 60 s and 10 s reset delay data.

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 04/11/2025

(2/4) Bout (length of time pressing for reward between no-access delay periods) length & frequency are sensitive to delay length. ***Note, the differences in the y-axis.

Ratio resets segmented PRR task performance into bouts of work. Cumulative records of active lever presses are plotted for the first 800 s of three example sessions. Grey tick marks indicate reward delivery times. (A) In PR task sessions, rats earned reinforcers quickly at the beginning of sessions, but reward rate decreased as the ratio requirement progressed. Example record from session 2 of PR. In PRR sessions (B–C), lever pressing was segmented into bouts by ratio resets, which resulted in the reset delay (shaded regions). Example records of session 2 PRR-60 (B) and session 2 PRR-10 (C). Because reset presses returned the ratio requirement to one, cumulative records for PRR-10 and PRR-60 sessions were computed separately for each bout of work between successive ratio resets. Note the very different y-axes between the three example sessions.

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 04/11/2025

(1/4) TL;(please still)R on #eNeuro Rats can reset PR to its easiest difficulty by paying a delay cost on PRR task. They adaptively use the reset lever to go from receiving ~67 pellets (PR) ➡ ~210 pellets (PRR w/60s delay)➡ ~328 pellets (PRR w/10s delay; almost 15g 😳) w/in the same amount of time.

Rats were tested on the Progressive Ratio with Resets (PRR) task where 2 levers are present in an operant box. In this example, the left-side lever allows for the rat to do progressive ratio (PR) which starts at a requirement of 1 lever press & increases by 1 lever press. to earn reward (one 45mg sucrose pellet delivered in a hopper). The right-side lever resets the ratio requirement after a fixed reset delay where they cannot press either lever. Rats can press this lever at any point during PR. In PRR-10 sessions the reset delay was 10 seconds, while in PRR-60 sessions the reset delay was 60 seconds.

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Matthew Apps @brainapps.bsky.social · 04/11/2025

Next @zeenarivera.bsky.social from UCLA for the first blitz talk on a progressive ratio task using effort.

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Alicia Izquierdo @aliciaizquierdo.bsky.social · 28/10/2025

What a great lineup of speakers! Glad that @hhmi.org Gilliam Fellow @zeenarivera.bsky.social will present a blitz talk next week 🇬🇧 👏🏼 (data from a collab with the Wikenheiser lab)

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Mark D Humphries @markdhumphries.bsky.social · 13/10/2025

🚨Registration for Mechanistic Basis of Foraging 2025 closes October 20th 🚨 Speakers @mkflugge.bsky.social @aaronbornstein.bsky.social @benhayden.bsky.social @ellileadbeater.bsky.social @davidrobbe.bsky.social @dlbarack.bsky.social @becketebs.bsky.social uobevents.eventsair.com/the-mechanis...

uobevents.eventsair.com

Home - The Mechanistic Basis of Foraging

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Jeremy Berg @jeremymberg.bsky.social · 26/09/2025

2/2

This means individuals in the following statuses at the time of application are eligible:

Undergraduate in the final (senior) year of a bachelor’s degree program
Bachelor’s degree-holder with NO enrollment in a graduate degree program (non-degree graduate coursework allowed)
Individual enrolled in a joint bachelor’s-master’s degree program with at least three undergraduate years completed
First-year graduate student in their first graduate degree program with less than one academic year completed in the degree program (according to institution’s academic calendar)
Individuals enrolled in joint bachelor’s-master’s degree programs are considered graduate students. For GRFP, joint bachelor’s-master’s degrees are defined as degrees concurrently pursued and awarded.
Not be a current NSF employee.
Applications that do not meet eligibility requirements will be returned without review as being ineligible for a fellowship.

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 04/08/2025

AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 11/07/2025

remember when emily came in clutch to be my independent study professor after i dropped out of a required senior seminar class in my humanities college in progressive seattle where some of my peers referred to the filipino & the mexican students as The Colored people 🤪 preorder her book already !!!

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 01/07/2025

but actually what a fascinating way to engage with studying animal behavior. my guide asked me if the prevalence of fly fishing has changed fish foraging patterns over time. i told him i'd look into it, and now i'm texting him that--yes!! (at least some) fish do some social learning to avoid lures

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 01/07/2025

learned how to fish. when does my lifetime supply of food get delivered

Zeena in a hat and a black tshirt holding up a 5 inch tilapia that they caught in a park.

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Thanh Neville, MD, MSHS @thanh-neville.bsky.social · 12/06/2025

A friend who works at Harbor-UCLA just told me that ICE was on the premises. Harbor-UCLA is a safety-net hospital & a level 1 trauma hospital. People are going to die because of these actions. This makes me so angry.

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Celeste Pewter @celestepewter.bsky.social · 09/06/2025

Per CNN and ABC News: LAPD has declared all of downtown as an unlawful assembly, telling all demonstrators to leave the area immediately. Everyone covering/protesting, please stay safe. (Deleted to repost w/ the link)

abcnews.go.com

LAPD declares all of downtown an unlawful assembly

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Sam Tung @stung.art · 09/06/2025

Hotline for Immigrant Law Defenders: 213-833-8283 Legal representative line for CHIRLA (Coalition for Humane Immigrant Rights of Los Angeles): 213-201-3797 ACLU Rapid Response Hotline for LA County: 888-624-4752

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

kylie, themeny of the state (spooky),,, @kylie.hater.club · 09/06/2025

So on one hand Los Angeles is having to fight back against ICE and state violence and on the other hand Israel just abducted everyone aboard the Madleen including Greta Thunberg and confiscated all aid so everything’s pretty fucking bad

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

unhinged leftist ☭🔻 @gnommunist.bsky.social · 08/06/2025

yep and super yep about the absolution part which allows most ‘good’ people to detach and ignore the contradictions. thats who it quiets down the ppl should be pissed every day it’s ignored it’s quickly normalized as a ‘policy issue’ while the killing continues under the headlines

f
atimaaa
2 minutes ago
STARK RAVING GRAD
Fatima Mohammed @fatima m7md
Ordinary people resisting empire aren't trying to build careers in activism or anticolonial theory - they're fighting because their families are being torn apart and trampled by a machinery of death that has no conscience
& if you can't afford the courage to fight back in real ways, then at the very least, don't demean those who do. Bless their hands, their hearts, and their unshakable resolve.

Fatima Mohammed @fatima_
m7md
If you won't stand with the most militant parts of the movement, you're not here to end violence - you're in pursuit of absolution. You just want to feel clean.
you think you're going to sing your way into liberation? maybe even sell merch when the last domino of violence falls? insufferable and regressive.

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

James Queally @jqwritesstuff.bsky.social · 08/06/2025

In the last 20 or so minutes I’ve seen LAPD officers shove women to the ground without provocation, rip a sign out of a man’s hand and then swing a baton into his leg and raise a less-lethal launcher to aim directly at a protester (which I’m 99% is a major policy violation.)

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

molly conger @socialistdogmom.bsky.social · 08/06/2025

protect your eyes, protect your head. "less lethal" munitions are lethal when fired directly at a human being and cops love to use them this way. pepperballs will take your eye out, a tear gas canister can fracture your skull. cops will kill you on purpose and by accident, all with impunity.

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Yashar Ali 🐘 @yasharali.bsky.social · 06/06/2025

BREAKING The President of California’s largest union has been detained during an ICE raid.

SEIU California President David Huerta Injured, Detained at ICE
Raid in Los Angeles
Los Angeles - David Huerta, President of SEIU California and SEIU- United Service Workers West was injured and detained at an ICE raid in Los Angeles today while exercising his First Amendment right to observe and document law enforcement activity.
Tia Orr, Executive Director of SEIU California, made the following statement:
"SEIU California members call for the immediate release of our President, David Huerta, who was injured and detained at the site of one of today's ICE raids in Los Angeles. He is now receiving medical attention while in custody.
"We are proud of President Huerta's righteous participation as a community observer, in keeping with his long history of advocating for immigrant workers and with the highest values of our movement: standing up to injustice, regardless of personal risk or the power of those perpetrating it.
"We call for an end to the cruel, destructive, and indiscriminate ICE raids that are tearing apart our communities, disrupting our economy, and hurting all working people. Immigrant workers are essential to our society: feeding our nation, caring for our elders, cleaning our workplaces, and building our homes."

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Celeste Pewter @celestepewter.bsky.social · 07/06/2025

Fellow Californians, here's who to call after today's ICE raids in LA: 1. Call your MOC: (202) 224-3121 (switchboard) 2. Call your STATE assemblymembers/senators: findyourrep.legislature.ca.gov 3. And call/email Newsom: www.gov.ca.gov/contact/

findyourrep.legislature.ca.gov

Find Your California Representatives

Use your residential address to find your California State Senate and Assembly representatives.

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 07/06/2025

yay thank u! rlly glad we could land on something that was the best of both lab's interests.

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

bioRxivpreprint @biorxivpreprint.bsky.social · 07/06/2025

A progressive ratio task with costly resets reveals adaptive effort-delay tradeoffs www.biorxiv.org/content/10.1101/202…

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Zeena Rivera ✨they/them✨ is defending soon👀 @zeenarivera.bsky.social · 07/06/2025

First first-author manuscript out as a preprint! Look at our cool new effort & delay cost task. 🐀💕 🧠 Beautiful collab across both of my labs @aliciaizquierdo.bsky.social and Wikenheiser lab www.biorxiv.org/content/10.1...

biorxiv.org

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Reposted by Zeena Rivera ✨they/them✨ is defending soon👀

Scott Delaney @scott-delaney.bsky.social · 14/05/2025

To my colleagues at Harvard with recently terminated NIH and NSF grants, please, please report them below. We’re told of at least 200 NSF grants and widespread NIH terminations. NIH: grant-watch.us/submit-nih.h... NSF: grant-watch.us/submit-nsf.h... And please spread the word 🙏

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