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Jaime Castrellon

@jjfcastrellon.bsky.social
743 followers 322 following 8 posts

Assistant Prof @UCLA | studying decision making & motivation | #LatinxInSTEM | #FirstGen | he/him www.psych.ucla.edu/faculty-page/jca…

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Reposted by Jaime Castrellon
Dan Oh (DongWon) | 오동원 @ohdanieldw.bsky.social · 28/04/2026
I'll be recruiting PhD students (2027 entry) and a postdoc to join the lab at Berkeley. Interests: • continuous person perception in interactive contexts • impression management and its biases • social perception in digital spaces Get in touch if there's overlap. Very excited for this next chapter!
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Jenny Crawford @jlcrawford.bsky.social · 28/04/2026
I will be recruiting a lab manager to start in fall 2026 and will be accepting applications for Ph.D. students to start in fall 2027. For more information (& contact info), please reach out through my website: jlcrawford.netlify.app
jlcrawford.netlify.app
Jennifer L. Crawford
Postdoctoral Fellow
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Jesse Rissman @rissman.bsky.social · 24/03/2026
🚨NEW PREPRINT (w/ Fleming Peck & Hongjing Lu) "Spontaneous emergence of context-dependent statistical learning in humans and neural networks" We are constantly predicting what will happen next. Yet the same cue can lead to different predictions depending on context. How might this work...? 🧵1/8
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Corinna Schulz @corcerebrum.bsky.social · 09/12/2025
Your stomach called – your striatum picked up! But does this actually happen in humans? Using simultaneous dopamine PET/fMRI, we show that the gut hormone ghrelin helps the brain adjust motivation to current metabolic need. Here’s what we found👇 Preprint: shorturl.at/pq4A3 #neuroskyence #🩺
Graphical visualization of the research question
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Kate Wassum @katewassum.bsky.social · 03/11/2025
We’re hiring a technician!! We’re an inclusive team of behavioral neuroscientists trying to discover the brain circuits of learning, decision making, and habit. More info👇 wassumlab.psych.ucla.edu/join-the-lab/ Job posting: jobs.ucla.edu/jobs/8968
Photo of a lab group smiling in front of a fountain at UCLA
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Shawn Rhoads @shawnrhoadsphd.com · 22/10/2025
📢 Thrilled to share our paper is out now in @natcomms.nature.com Shared computations underlie how we acquire actions that are mutually beneficial, instrumentally harmful (benefits self at the expense of others), altruistic (benefit others at the expense of self), or mutually costly 🧵 rdcu.be/eL8mZ
rdcu.be
Neurocomputational basis of learning when choices simultaneously affect both oneself and others
Nature Communications - When learning to make choices that simultaneously affect the self and others, asymmetric encoding of information guides future social behaviors across mutually beneficial,...
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Needhi Bhalla 💅🏽 @needhibhalla.bsky.social · 23/10/2025
@joann-trejo.bsky.social, @marymunson4.bsky.social and I have a commentary in @natcellbio.nature.com on recent attacks on DEI in biomedical research: "If scientific research, especially biomedical research, is meant to serve everyone, then it requires that everyone has an opportunity to participate"
nature.com
Scaling back DEI programmes and the loss of scientific talent
Nature Cell Biology - Programmes that support diversity, equity and inclusion (DEI) in science are under attack in the USA. Data indicate that diversity in the scientific workforce increases...
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Debbie Yee @debyee.bsky.social · 20/10/2025
Thrilled to share our new preprint highlighting distinct neurocomputational mechanisms underlying how reward and punishment determine adaptive cognitive control - a massive fMRI study and collaborative team effort with the @shenhavlab.bsky.social 🧠 Link here: www.biorxiv.org/content/10.1...
biorxiv.org
Neurocomputational mechanisms underlying the distinct motivational influences of reward and punishment on cognitive control
Human motivation is fundamentally shaped by one's expectations of the reward they could earn for good performance or the punishment they would avoid for poor performance. However, the extent to which ...
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Sam Nastase @samnastase.bsky.social · 01/10/2025
I'm recruiting PhD students to join my new lab in Fall 2026! The Shared Minds Lab at @usc.edu will combine deep learning and ecological human neuroscience to better understand how we communicate our thoughts from one brain to another.
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Jeremy Berg @jeremymberg.bsky.social · 10/09/2025
So... I did some analysis of grants that did receive noncompetitive renewals. In particular, I looked a those award where the title of the grant changed. Warning: The results are just what I expected, but oooph... 1/4
media.tenor.com
a man with his eyes closed is wearing a plaid shirt and a blue jacket .
ALT: a man with his eyes closed is wearing a plaid shirt and a blue jacket .
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Kianté @kiante.bsky.social · 15/08/2025
New preprint🔊🧓: Why do we trust our friends more? We show that people are more efficient at evaluating information when making trust decisions about friends. This is preserved across the adult life span. W/ @jjfcastrellon.bsky.social . Feedback welcome: osf.io/tkpmv_v1
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David G. Kamper @dgkamper.bsky.social · 14/05/2025
How do children figure out what other people believe, especially when those beliefs are wrong? And what kinds of mental effort does it take to get that right? New paper out now:
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Billy Mitchell @wj-mitchell.bsky.social · 10/04/2025
I updated my NIH D-SPAN repo (github.com/wj-mitchell/...) to reflect the current state of the mechanism, which - like other diversity awards - is not good. It made my day the handful of times folks reached out to share how it helped. I'm leaving it otherwise unaltered in memoriam.
github.com
GitHub - wj-mitchell/DSPAN_Details: Information and Materials Related to My NIH DSPAN F99/K00 Award
Information and Materials Related to My NIH DSPAN F99/K00 Award - wj-mitchell/DSPAN_Details
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Science Magazine @science.org · 09/04/2025
Exclusive: Weeks after President Donald Trump’s administration ordered NIH to pull $250 million in biomedical research grants to Columbia University, the agency is freezing all remaining grant money owed to the university until further notice. scim.ag/4if5Rg1
scim.ag
NIH freezes all research grants to Columbia University
Amid negotiations with Trump, the university could risk losing nearly $700 million
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Black In Neuro @blackinneuro.bsky.social · 05/04/2025
It’s here! It’s here! Our Black In Neuro Annual Report for FY23-24 (July 1, 2023 - June 30, 2024) 🎉 We would like to thank our BIN team, Daniela Franco for preparing this report, and Ni-ka Ford for the beautiful cover art 😍 static1.squarespace.com/static/5f022... 🧵 1/8
An illustration of the profile of a Black woman with locks, adorned with shells and gold beads and rings. She is staring to the left and wearing an orange tank top. There is a pink glow on parts of her skin. A sagittal brain section is shown on her head. The image is against a creamy-colored background. The text reads “Black In Neuro Annual Report 2023-2024”. The artist details are on the bottom: “Cover Art by Ni-ka Ford, CMI- Enlight Visuals”
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Dr. Sarah Gaither @sarahegaither.bsky.social · 04/04/2025
New work by Mercedes Munoz with @yarrowdunham.bsky.social @olsonista.bsky.social Kristin Pauker & May Ling Halim! White kids are above chance in ingroup biases in attitudes, resource allocation & interpersonal distance; results vary for Black, Latine, & Asian kids online.ucpress.edu/collabra/art...
online.ucpress.edu
Children’s Use of Race in Their Social Judgments: A Multi-Site, Multi-Racial Group Comparison
Studies assessing children’s use of race in social judgment have often focused on White participants and usually include targets of only one or two racial backgrounds. They have also employed a wide r...
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jamelle @jamellebouie.net · 23/03/2025
every person involved in this needs to be in prison
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Clara E. Haeffner @cehaeffner.bsky.social · 19/03/2025
I’m at SAS! Come check out my poster during tomorrow’s session if you want to hear about my undergrad thesis work!
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Needhi Bhalla 💅🏽 @needhibhalla.bsky.social · 19/03/2025
This is a fucking shitty ass day but at some point STEM faculty have to recognize that what we are seeing happen with federal funding of biomedical research through the NIH and NSF is being used and manipulated to punish and defund higher education institutions.
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Paul Cohen @paulecohen.bsky.social · 19/03/2025
Le Monde reporting that a French scientist traveling to Houston to attend a conference was denied entry to US after a search of his phone & computer revealed messages critical of Trump's science cuts, "which [says CPB] conveyed hatred of Trump & could be qualified as terrorism". Computer confiscated
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Darby Saxbe @darbysaxbe.bsky.social · 28/02/2025
Los Angeles people: join us 12pm March 7 for a rally for science at the Federal Building in Westwood, and please spread the word to any pro-science folks you know. @standupforscience.bsky.social @latimes.com @ktla.com @abc7.bsky.social @kcrw.com @laist.com @crooked.com @nbcla.com @foxla.bsky.social
Flyer for the Stand Up for Science rally featuring an image of a Statue of Liberty
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Jo Cutler @drjocutler.bsky.social · 25/02/2025
So excited to announce Curiosity, Information Seeking & Exploration conference: 30th Sept-1st Oct @Brown University. Amazing speakers sites.google.com/view/informa... and free! Abstract submissions open until 7th July w/ Romy Frömer, Ohad Dan, @hayleydorfman.bsky.social, Matt Nassar. Please share!
sites.google.com
CISE 2025
30th September - 1st October 2025 Brown University, Rhode Island
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Kate Wassum @katewassum.bsky.social · 19/02/2025
🚨📃New Wassum Lab Paper📃🚨 Out today, @jackiegio.bsky.social discovered brain pathways that support agency and habit and how chronic stress disrupts them to rob of us our agency and cause us to form rigid habits 🧵👇 www.nature.com/articles/s41... Free full text: rdcu.be/eaxEv
nature.com
A dual-pathway architecture for stress to disrupt agency and promote habit - Nature
Adaptive decision-making often requires an understanding of our agency in a situation; however, chronic stress can disrupt agency and promote inflexible, habitual behaviour by turning off a brain path...
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Jacquelyn Gill @jacquelyngill.bsky.social · 18/02/2025
Firings are happening right now at the National Science Foundation. Essential staff are being cut. This isn’t about the budget. If it was, they’d be going after the military (17%) or state appropriations (38%). NSF is 0.7% of the federal budget. All federal employees make up only 4% of the budget.
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Jeremy Berg @jeremymberg.bsky.social · 16/02/2025
Thanks to all of the NIHers and their friends who reached out to me. I am still here (DM me or Signal jeremymberg.78) I still have a very incomplete picture but based on what I have been told, the damage to NIH and to many wonderful people who work(ed) there is/was impossible for me to imagine 1/n
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Jeremy Berg @jeremymberg.bsky.social · 16/02/2025
The damage today (actually yesterday) to the intramural program appears to especially bad. It also appears (although I need more confirmation) that most or all of the tenure track investigators in their first 2 years in several, and perhaps all, institutes were terminated. 7/n
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Colette Delawalla, PhD @cdelawalla.bsky.social · 10/02/2025
Get in dorks, we're going protesting! STAND UP FOR SCIENCE WITH US ON MARCH 7TH, 2025 WASHINGTON DC AND EVERY STATE CAPITOL Because science is for everyone! Find us at standupforscience2025.org #standupforscience2025 #scienceforall #sciencenotsilence
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Josh Gerstein @joshgerstein.bsky.social · 10/02/2025
BREAKING: 22 states sue NIH over Trump administration's new 15% cap on overhead for federal research grants. Suit filed federal court in Boston contends lifesaving research 'will grind to a halt' under the policy. Doc: storage.courtlistener.com/recap/gov.us...
storage.courtlistener.com
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Jeremy Berg @jeremymberg.bsky.social · 09/02/2025
F99/R00 AND K99/R00 DIVERSITY AWARD APPLICANTS If you have applied for a F99/R00 or K99/R00 Diversity award and the study section for review is not listed on your eRA Commons page, please reach out to me. DM me, email berg.grants.2029@gmail.com, Signal jeremymberg.78 THANK YOU
media.tenor.com
a picture of a cartoon character with the words call me on it
ALT: a picture of a cartoon character with the words call me on it
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Miriam Goldstein @miriamgoldstein.bsky.social · 06/02/2025
Just in case you thought that removing DEI criteria would mean that everyone is competing equally: NIH is removing grad students from underrepresented backgrounds from the applicant pool altogether. Their applications will not be considered. Other students, not from these backgrounds, will be.
Update: They were removed from our reviewer assignments completely. I'm so sorry to all those graduate students. 

Anonymous to protect the identity of the NIH employee I spoke to...I am on study section next month to discuss F awards. We were just instructed to put the F31-Diversity applications on the bottom of our priority list for review because there is a chance we may not be able to review them. My heart is breaking for the grad students and their mentors that put so much work into these just for them to be disqualified and thrown out.
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Colette Delawalla, PhD @cdelawalla.bsky.social · 09/02/2025
Get in Dorks, we are going protesting. STAND UP FOR SCIENCE. MARCH 7th 12-4pm. DC AND YOUR STATE CAPITALS. More information to come.
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Colette Delawalla, PhD @cdelawalla.bsky.social · 08/02/2025
Can’t believe I’m typing this but… FUCK IT IM PLANNING A STAND UP FOR SCIENCE PROTEST IN DC. If you want to be involved, be dm me. I’m nervous, I’ve never done this before, but we gotta be the change we want to see in the world.
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Bríd Nic Annaidh ☘️ @bridgetmcgann.medsky.social · 06/02/2025
The NIH 6 months ago, vs the NIH now. 🧵 Video 👇🏼 NIH 6 months ago. A hallway full of colorful posters profiling women and POC researchers. Shared by @amritalaxshmy.bsky.social on the bird site. 🧪
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Carl T. Bergstrom @carlbergstrom.com · 08/02/2025
1. Today the NIH director issued a new directive slashing overhead rates to 15%. I want to provide some context on what that means and why it matters. grants.nih.gov/grants/guide...
grants.nih.gov
NOT-OD-25-068: Supplemental Guidance to the 2024 NIH Grants Policy Statement: Indirect Cost Rates
NIH Funding Opportunities and Notices in the NIH Guide for Grants and Contracts: Supplemental Guidance to the 2024 NIH Grants Policy Statement: Indirect Cost Rates NOT-OD-25-068. OD
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Darby Saxbe @darbysaxbe.bsky.social · 04/02/2025
🚨BREAKING. From a program officer at the National Science Foundation, a list of keywords that can cause a grant to be pulled. I will be sharing screenshots of these keywords along with a decision tree. Please share widely. This is a crisis for academic freedom & science.
list of banned keywords
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Needhi Bhalla 💅🏽 @needhibhalla.bsky.social · 29/01/2025
🚨PIs of Training Grants and Programs, ESPECIALLY training grants that support students from historically excluded groups (T32s and T34s, IMSD, MARC, PREP, MOSAIC, etc.)🚨 We need to push back on the loss of information and the disappearance of websites about these resources.
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Joy Franco, PhD @engineeringjoy.bsky.social · 23/01/2025
To my fellow diversity scholars: this is not about merit. They know we’ve had to do more with less. It’s about blocking socioeconomic mobility. You EARNED your awards. You were awarded because of your excellence. Keep your heads up friends. We will get through this. #DSPAN #NSF
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Maureen M Sampson PhD @maureenbiologies.bsky.social · 23/01/2025
Keep in touch with NINDS #DSPANscholars here 🧠 Reply or DM to be added! go.bsky.app/TQdWJr3
go.bsky.app
NINDS DSPAN Scholars
Join the conversation
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Jeni Kubota @jenikubota.bsky.social · 23/01/2025
I was a Ford Foundation graduate fellowship recipient I had an NIA Diversity Supplement as a postdoc My NIA Diversity Supplement transitioned into a faculty award for my first year as a new PI I was a 2022 Senior Ford Foundation Fellow I am a scientist BECAUSE of these programs
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Rob Woodry @robwoodry.bsky.social · 23/01/2025
My NIH DSPAN application was scheduled for study section today & tomorrow It’s a grant geared towards supporting the early careers of underrepresented PhD trainees in neuroscience B/c it’s a diversity-focused research grant, this likely means it will be killed before it even gets reviewed
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Jaime Castrellon @jjfcastrellon.bsky.social · 20/12/2024
Just wrapped up my 1st quarter teaching as a new prof @UCLA and want to share some highlights from a new course we offered now that we have an official Social & Affective Neuroscience (SAN) area! In the SAN Lab course, students (n=21) learned about & applied psych methods to SAN research questions
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