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Nina Rouhani

@ninarouhani.bsky.social
3.7K followers 621 following 29 posts

🧛🏻‍♀️ assist prof in brain & cognitive science @USC (postdoc @caltech, phd @princeton) 🔎 computational approaches to reinforcement learning, memory & decision-making at individual & collective level; comp psychiatry incoglab.github.io/index.html

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Reposted by Nina Rouhani
Dan Mirea @danmirea.bsky.social · 01/10/2026
Thrilled to announce that I will be joining the University of Miami as an Assistant Professor of Psychology next year! I am recruiting a PhD student to start in Fall 2027 — please reach out if you are interested in joining the lab! For more info check out my website: dan-mirea.com
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ari ☀️ @khoudary.bsky.social · 29/09/2026
how does memory support perceptual decisions made under uncertainty? this question has scaffolded my entire PhD, and I'm so excited to share part of it in this ✨new preprint ✨ w/ @meganakpeters.bsky.social and @aaronbornstein.bsky.social! link: www.biorxiv.org/content/10.6...
biorxiv.org
Memory retrieval explains dynamic effects of expectations on perceptual decisions
Expectations—prior knowledge of environmental statistics—support adaptive behavior by reducing uncertainty during inference. However, the questions of where expectations come from and how that ought t...
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Mariam Aly @mariamaly.bsky.social · 15/09/2026
How do keep a narrative active in our mind despite interruptions? The default mode network can maintain a representation of an interrupted story over a delay, even when the delay is filled with a demanding task. This representation is strikingly transformed from the initial experience!
biorxiv.org
Cortical and Hippocampal Pathways to Mental Continuity
How do people preserve mental continuity when tasks are interrupted? One established pathway runs through the hippocampus, which stores snapshots of our mental context for later reinstatement. We prop...
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Katie Insel @katieinsel.bsky.social · 14/09/2026
The CATS Lab is moving to Columbia next year, and I am recruiting a PhD student this cycle to start Fall 2027 in the Department of Psychology. Learn more about how to apply here: psychology.columbia.edu/content/prep... I am also recruiting a postdoc and staff for 2027. More info coming soon!
psychology.columbia.edu
Preparing to Apply | Department of Psychology
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Salman Qasim @qasimetal.bsky.social · 13/09/2026
Another preprint! This one from my postdoc with @ignaciosaezphd.bsky.social and @xiaosigu.bsky.social. Here we asked how the reward outcomes driving trial-by-error learning leave a lasting imprint on memory strength in the human brain. We used iEEG/computational models of cognition to find:
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Dorsa Amir @dorsaamir.bsky.social · 10/09/2026
This is a real photo from 1913. It hasn’t been colorized. It was made using a technique called the Autochrome Lumière which captured true color using microscopic dyed starch grains as color filters, decades before color film existed. Pretty incredible, no? More below 👇
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Melanie Mitchell @melaniemitchell.bsky.social · 10/09/2026
I wrote down my thoughts about the last several weeks of AI hell. aiguide.substack.com/p/misleading...
aiguide.substack.com
Misleading Metaphors, Real Risks
What To Fear from AI Agents and How to Reclaim Our Human Agency
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Mark Thornton @markthornton.bsky.social · 08/09/2026
Excited to share this new preprint from @lindseytepfer.bsky.social, @chujunlin.bsky.social, and me, in which we investigate the different ways our brains allow us to change our minds about people! "The neurocomputational mechanisms of naturalistic trait impression updating" osf.io/preprints/ps...
Schematics of scanner and online experimental designs. A) Scanner participants first completed individual difference surveys regarding their demographics, attitudes towards social groups, mood, and personality. In the MRI scanner, they then watched short autobiographical narrative videos. After the scan, they made ratings about the traits of the individuals in the videos they viewed. B) Online participants first made ratings about the traits of the individuals in the videos based on still frame images. They then made continuous ratings of the traits of these individuals over the course of the videos.Analysis schematic. A) Spatiotemporal representational similarity analysis was used to relate patterns of brain activity over the course of SEND videos to i) continuous ratings of the traits of the individuals in those videos, ii) multimodal annotations (face, voice, and speech semantics), and iii) representations learned by neural networks to support computational operations (compression, multimodal fusion, temporal integration, and prediction). B) Intersubject representational similarity analysis was used to relate intersubject correlations in brain activity to individual differences in trait impression updating, demographics, social group attitudes, mood, and personality. Computational operations of trait impression updating. The left column illustrates brain regions within which pattern similarity is uniquely associated with representations learned by neural networks trained to engage in the corresponding computational operation: compression, multimodal fusion, temporal integration, or prediction. The right column illustrates where these effects uniquely statistically mediate the association between brain activity and trait ratings. All results control for the raw annotations of face, voice quality, and speech semantics. Results are significant (p < .05) corrected for multiple comparisons across parcels via maximal statistic permutation testing.Individual differences in trait impression updating. IS-RSA results reflecting where individual differences were associated with ISC while watching SEND videos. A) Reflects where idiosyncratic trait impression updating was correlated with ISC. B) Likewise illustrates where four categories of potentially explanatory individual differences – social group attitudes, participant demographics, participant personality (Big 5), and participant mood (PANAS) predict ISC during SEND video viewing. C) Shows where social group attitudes statistically mediate the association between idiosyncratic trait impressions and ISC. Results are significant (p < .05) corrected for multiple comparisons across parcels via maximal statistic permutation testing.
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Nicola Sambuco @nicolasambuco.bsky.social · 06/09/2026
Our paper is now published in @natcomms.nature.com! We identified reproducible human reward-processing phenotypes analogous to sign- and goal-trackers and tested their sensitivity to dopamine D₂ modulation. 🧵 1/4 #neuroskyence #Neuroimaging #RewardSignals doi.org/10.1038/s414...
doi.org
Reproducible human reward imaging phenotypes exhibit differential sensitivity to dopamine D2 receptor antagonism - Nature Communications
Brain imaging across more than 1,200 people identifies two reproducible reward profiles, one tuned to cues and one to outcomes. The two profiles respond in opposite ways to dopamine-blocking drugs, an...
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Mariam Aly @mariamaly.bsky.social · 04/09/2026
How do we prevent memories from competing to guide attention? More distinct hippocampal representations for competing memories are linked to precise preparatory coding in visual cortex & more accurate eye movements to target locations. Thrilled to share this work by the incomparable Serra Favila!
nature.com
Hippocampal mechanisms underlying the resolution of competition in memory and perception - Nature Communications
Memory and perception both require selecting behaviorally relevant information. Here, the authors show that more distinct hippocampal memories are linked to precise anticipatory signals in visual cort...
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Payam Piray @payampiray.bsky.social · 28/08/2026
I am happy to share some good news: my lab has received an NSF CAREER award and an NIH R01 this summer, supporting our work on how the brain handles uncertainty during learning. We will be hiring postdocs and PhD students in the coming year, so please get by email in touch if you are interested.
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Sam Nastase @samnastase.bsky.social · 21/08/2026
We’re recruiting a full-time lab manager to join the Shared Minds Lab at USC! This will be a great opportunity for someone who wants to get hands-on experience with research before starting a PhD program in psychology or neuroscience. More below:
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Sam Nastase @samnastase.bsky.social · 18/08/2026
New perspective piece out in @cp-neuron.bsky.social with Zaid Zada, @adelegoldberg.bsky.social, and Uri Hasson! We try to articulate some of our excitement about LLMs and discuss what kinds of insights they might provide into the neural computations supporting natural language in the human brain.
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Ida Momennejad @neuroai.bsky.social · 19/08/2026
📣Algorithmic Grammar of Flexible Cognition: A Walk through Latent Operations osf.io/preprints/ps... Flexible behavior moves adaptively btwn cognitive modes. But units of analysis remain representations & few operations. Proposal: formalize open-ended cognition as walk over latent operations 1/n
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Deepu Murty @vpmurty.bsky.social · 18/08/2026
New paper linking mesolimbic-hippocampal circuits to childhood trauma and anhedonia with @laurenellman.bsky.social and led by Katey O’Brien. www.jneurosci.org/content/earl...
jneurosci.org
Functional integrity of mesolimbic-hippocampal circuits is associated with anhedonia in individuals with early life stress
Anhedonia reflects a transdiagnostic deficit in a range of processes that impact reward and motivation. While human neuroimaging has mainly focused on striatal-related alterations in anhedonia, animal...
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Megan deBettencourt @mdebettencourt.bsky.social · 17/08/2026
Come work with me at Google! We have an open 6-month temp role on my team - it’s a great opportunity for someone with a cog neuro or psych background interested in exploring big tech. Looking for comp modeling experience (e.g. RL, DDMs) and Python/JS. Reach out to learn more or pass along any names!
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Mara Mather @maramather.bsky.social · 16/08/2026
Starting September 1, I will be working with a team to start a new research center at the Max Planck Institute for Human Development in Berlin. We currently have a couple of positions posted but there will be more so if you are interested stay tuned and feel free to get in touch.
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Alireza Modirshanechi @modirshanechi.bsky.social · 15/08/2026
Excited to share that I'll be starting as a junior professor and Emmy Noether awardee at the University of Göttingen this October! 🥳 🚀 I'll be hiring #phd students and #postdoc across #machinelearning, #neuroscience and #cogsci: modirlab.github.io/open-positio... Please spread the word! 🙏
PhD ad informationPostdoc ad informationInformation about Göttingen and equal opportunities
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Soroush Mirjalili @soroushmirjalili.bsky.social · 11/08/2026
🧠🚨 How can we measure the latent cognitive processes that work together during complex behavior? In our new Perspective, we propose cross-domain transfer: learning a neural signature of a cognitive process in one task and using it to track that process in another. 🧵 osf.io/preprints/ps...
osf.io
OSF
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Nora Harhen @noraharhen.bsky.social · 11/08/2026
How do we make good decisions with little experience? Adults can rely on memories of past choices. In our new study in @pnas.org we show kids & teens do something similar–but what they remember turns out to be quite different! www.pnas.org/doi/10.1073/...
pnas.org
Developmental changes in memory structure and precision alter the use of retrieved episodes during decisions for reward | PNAS
Most widely studied option evaluation strategies rely on knowledge accumulated across repeated experiences. But how should options be evaluated in ...
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aaron bornstein @aaronbornstein.bsky.social · 11/08/2026
New lab paper! @noraharhen.bsky.social and @catehartley.bsky.social investigate how children and adolescents differ in their use of episodic context for decision-making. Thread below.
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Jamal A. Williams @jayneuro.bsky.social · 05/08/2026
✨New Preprint Alert✨ How does the brain integrate long-timescale tonal information during piano performance? 🧠 🎹 Our new preprint shows how default mode, motor, auditory, and visual regions track high-level musical structure during expert performance. www.biorxiv.org/content/10.6... (1/10)
biorxiv.org
Hierarchical neural integration of musical structure during expert performance
Music, which is organized hierarchically (notes, phrases, sections), provides an ideal model for studying fine-grained motor sequence production. However, it is unknown how musicians’ brains integrate...
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Elise Piazza @elisepiazza.bsky.social · 04/08/2026
New preprint alert: "Mapping the abstraction of song representations from perception to autobiographical memory", led by @rcassanocoleman.bsky.social, with @kellyjakubowski.bsky.social. osf.io/preprints/ps...
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Mark Thornton @markthornton.bsky.social · 03/08/2026
Very excited to share this preprint from me, @emmatempleton.bsky.social, @lindseytepfer.bsky.social & @thaliawheatley.bsky.social! "Friends and strangers engage in distinct regimes of body motion synchrony during conversation" osf.io/preprints/ps...
 Forms of body motion synchrony. A) Motion quantity synchrony – synchrony in the amount of motion (orange) people engage in over time. This form of synchrony is agnostic to the direction of this movement, may be positive or negative, occurs at varying time lags, and is not specific to matched body parts across members of the dyad. B) Pseudo-synchrony – motion quantity synchrony between people who are not actually interacting. That is, members of different conversations engaging in similar amounts of motion at similar points in the conversation relative to its initiation. And C) directional synchrony – people moving the same body parts in the same direction (or along the same axis in the opposite direction) at the same time (or at some specific time lag). Mechanisms of synchrony. A) Turn-taking, which causes increases in motion around the time of speaker role exchanges, as participants gesture to hand over or take over the floor. B) Conservation of motion in which one participant moves less when the other moves more, holding the total motion quantity relatively constant over time (note that the total amount of motion across the dyad is similar in the two panels, because one person reduces their motion to balance out the increase in the other’s motion). C) Entrainment, in which mutual following of the same conversational script leads to synchronized movement among people who are not directly interacting (i.e. pseudo-synchrony). Greeting gestures such as the handshakes depicted are one acute manifestation of this entrainment. D) Station-keeping, which maintains proxemic distance and eye level between members of the dyad. This mechanism accounts for directional synchrony, particularly between strangers who feel uncomfortable within each other’s personal space.Motion quantity synchrony among friends and strangers. A) Friends displayed significant positive synchrony in total motion quantity at short time lags (< 2.5 s) and B) this effect generalized across the majority of body part pairs (each line represents one pair). For example, one series of points might represent the synchrony between the amount of motion in one participant’s left hand and the other’s right foot. C) Strangers displayed significant positive synchrony in total motion quantity at short time lags (< 1 s) and significant negative total motion quantity synchrony at longer time lags (2.5 – 16.6 s). D) Again, this effect generalized to most body part pairs.Directional synchrony among friends and strangers. A) Among friends, we observed statistically significant directional synchrony in only two body parts (nose and eye) and only in the vertical axis. B) Among strangers, we observed statistically significant directional synchrony in a large number of body parts in the horizontal, vertical, and depth axes.
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Eleanor Holton @eleanor-holton.bsky.social · 31/07/2026
So thrilled to be joining the Psychology Department at @columbiauniversity.bsky.social as an assistant prof next summer! I'll be recruiting for PhD/postdoc to start in Autumn 2027, so if you're interested in using computational approaches to studying human cognition please get in touch!
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duncanlabuoft.bsky.social @duncanlabuoft.bsky.social · 30/07/2026
Please spread the word: We’re recruiting a postdoc! 📣 We study how shifting brain & attentional states shape memory and how people experience their worlds. fMRI/iEEG + a fun, supportive lab community + space to pursue your own ideas. 📅 Apply by Aug 15 tinyurl.com/fx5k7teb
tinyurl.com
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Hugo Spiers @hugospiers.bsky.social · 27/07/2026
🚨 new lab preprint! Research from @gordonfeld.bsky.social during his DFG personal fellowship to my lab many moons ago: Global structure of new relational knowledge networks is represented in retrosplenial complex, and node-distance in hippocampus www.biorxiv.org/content/10.6...
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Sam McDougle @actlab.bsky.social · 23/07/2026
The cerebellum plays a role in motor learning and reinforcement learning. But does cerebellar learning generalize to all sorts of tasks? Here we test strong prediction: that cerebellar activity tracks passively learned sensory-sensory associations (statistical learning). See below for the answer!
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aaron bornstein @aaronbornstein.bsky.social · 17/07/2026
Looking to work with a postdoc. Prior experience with fMRI and computational modeling required, interest in psychiatry desired. Fellowship provides three years salary plus independent travel/equipment funds. Send CV and 2-3 manuscripts (preprints OK).
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Dan Mirea @danmirea.bsky.social · 13/07/2026
🚨 Now out in @jamapsychiatry.com 🚨 Are people with depression less responsive to rewards on social media, just like in the lab? Actually…quite the opposite! 🧵 📄 Read the paper here: jamanetwork.com/journals/jam...
jamanetwork.com
The Reinforcement Effect of Social Media Likes in Depression
This study investigates individual differences in the effect of social media likes on posting behavior and their association with and specificity to depressive psychopathology.
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Anna Schapiro @annaschapiro.bsky.social · 09/07/2026
Very excited to share our new review on C-HORSE, our model of the hippocampus! We think there is very encouraging alignment between C-HORSE proposals and the extant empirical literature, though we also note plenty of areas for further model development. royalsocietypublishing.org/rstb/article...
royalsocietypublishing.org
Evidence for complementary learning systems within the hippocampus
Abstract. Decades of research have established the hippocampus as central to episodic memory, but growing evidence suggests that it also contributes to str
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Mariam Aly @mariamaly.bsky.social · 09/07/2026
How do we update our predictions when our environment changes? The hippocampus rapidly integrates previously distinct sequences to support updated predictions. New work w/ @hannahtarder-stoll.bsky.social & @chrisbaldassano.bsky.social – part of the theme issue on hippocampal predictions!
royalsocietypublishing.org
The hippocampus rapidly integrates sequence representations during novel multistep predictions
Abstract. Memories for temporally extended sequences can be used adaptively to predict future events on multiple timescales, a function that relies on the
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Taylor Webb @taylorwwebb.bsky.social · 11/06/2026
Very excited to share that my lab will be moving to Princeton (Neuroscience & Psychology) this fall. I'll be recruiting at all levels (more info to come soon), please share / get in touch if you're interested in joining!
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Kimberly Chiew @kimberlychiew.bsky.social · 09/06/2026
✨ VERY excited to share our new paper led by Holly Bowen (SMU) & former ugrad Kyle Thurmann "Effects of reward anticipation on memory encoding and cognitive control outcomes: A meta-analysis" finally in press @ Neuroscience & Biobehavioral Reviews 💵🧠 www.sciencedirect.com/science/arti... Thread 1/n
sciencedirect.com
Effects of reward anticipation on memory encoding and cognitive control outcomes: A meta-analysis
Extensive evidence suggests that cognitive performance is typically enhanced under increased motivation, often in the form of reward anticipation. Whi…
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Hayley Dorfman @hayleydorfman.bsky.social · 08/06/2026
🌵🏜️🌵 Out now in @cognitionjournal.bsky.social with @rbhui.bsky.social! If your advisor sends you an unclear email, do you interpret it as good or bad? 😏😱 In a new paper, we show how people make inferences about this type of ambiguous feedback during learning. www.sciencedirect.com/science/arti...
sciencedirect.com
Ambiguity and confirmatory reward learning
We tend to interpret feedback in ways that confirm our pre-existing beliefs. Such confirmatory tendencies are often viewed as cognitive flaws, but mig…
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Hugo Spiers @hugospiers.bsky.social · 03/06/2026
🚨 New publication in collab with Shayna Rosenbaum's lab: "Aphantasia is associated with spatial memory and navigation difficulties in complex virtual environments" Our test SeaHeroQuest shows a correlation between nav performance and mental imagery (VVIQ) www.sciencedirect.com/science/arti...
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Ali Cohen @aliocohen.bsky.social · 03/06/2026
The LUMeN Lab at Emory is hiring ✨ We’re seeking a full-time RA/lab manager and a postdoc to work on new NIH-funded studies! Formal job ads/apps forthcoming. We’re eager to hit the ground running so please share these flyers and/or reach out if interested!
The Learning, Understanding, Memory, & Neurodevelopment Lab (LUMeN Lab, Pl: Dr.
Alexandra Cohen) in the Department of Psychology at Emory University (Atlanta, GA) is seeking a full-time Research Assistant (RA) to work on studies examining how motivation and emotion influence learning, memory, and brain function across development. The RA will gain experience with all components of the research process, providing excellent preparation for graduate studies.

The expected start date for the position is Summer/Fall 2026. A two-year commitment is requested. Application review will take place on a rolling basis until the position is filled.

Please reach out to
ali.cohen@emory.edu
with a CV and cover letter if you are interested
in this position.The Learning, Understanding, Memory, & Neurodevelopment Lab (LUMeN Lab, PI: Dr.
Alexandra Cohen) in the Department of Psychology at Emory University (Atlanta, GA) is seeking a Postdoctoral Fellow to work on NIH-funded studies examining emotion-related learning, memory, and brain function across development.

Applications will be reviewed on a rolling basis until the position is filled.

Please reach out to
ali.cohen@emory.edu
with a CV and cover letter if interested.
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aaron bornstein @aaronbornstein.bsky.social · 26/05/2026
Now out in Developmental Science! @noraharhen.bsky.social, Rheza Budiono & @catehartley.bsky.social @hartleylabnyu.bsky.social use multi-patch foraging to identify a specific computational role for structure learning underlying developmental differences in exploration. dx.doi.org/10.1111/desc...
dx.doi.org
Structure Inference in Complex Environments Improves From Childhood to Adulthood
Early in development, children can infer latent structure in the world from sparse and ambiguous evidence. Through a process known as structure learning, they extract statistical regularities, const...
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Hayley Dorfman @hayleydorfman.bsky.social · 27/05/2026
Join us tomorrow afternoon at #APS2026BCN! @psychscience.bsky.social @ninarouhani.bsky.social @camillephaneuf.bsky.social @katieinsel.bsky.social
APS 2026 symposium poster on Computational insights into how motivational and socio-emotional factors shape decision-making
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Camille Phaneuf-Hadd (she/her) @camillephaneuf.bsky.social · 26/05/2026
I'm super excited for @psychscience.bsky.social this week! If you're interested in how motivational, emotional, and social contexts shape decision-making, come see computational models from @ninarouhani.bsky.social @hayleydorfman.bsky.social @katieinsel.bsky.social at our Thursday symposium. 💰😨👯⚖️⚙️
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Hayoung Song @hayoungsong.bsky.social · 22/05/2026
🎊New Lab Alert! I'll be starting at the 🧡University of Texas at Austin🧡 this August! More info to come. thesonglab.github.io I send my deep gratitude to my mentors, Monica @monicarosenb.bsky.social, YC @ycleong.bsky.social, ShiNung @shinung.bsky.social & Zach @zreagh.bsky.social, for everything.
thesonglab.github.io
Song Lab
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Nicola Sambuco @nicolasambuco.bsky.social · 20/05/2026
After years following @flagel-lab.bsky.social 's work on sign-trackers and goal-trackers in rodents, we asked: can we find this dissociation in the human brain? And does ST depend on dopamine, like in rodents? Preprint out, 5 cohorts, N=1,251. 🧵 #RewardSignals #neuroskyence #Neuroimaging #Science
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James Antony @jameswardantony.bsky.social · 20/05/2026
Excited to share I will be joining UC Davis as an assistant professor starting July 2027! Thank you dearly to all mentors and friends who have supported me over the years ❤️ and Cal Poly friends, I'll miss you!
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sharonmnoh.bsky.social @sharonmnoh.bsky.social · 13/05/2026
New paper! Multistep inference across the human lifespan can be improved with individualized memory interventions, with co-first @kwcooper.bsky.social @lovecrabmeat.bsky.social @dalezhou.bsky.social, Craig Stark, and @aaronbornstein.bsky.social (🧵): academic.oup.com/psychsocgero...
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Gus Hennings @gushennings.bsky.social · 12/05/2026
I am thrilled to share that I will be joining the Department of Psychology & Neuroscience at CU Boulder in January 2027, where I'll be starting the Affective Learning and Translational Memory (AltMem) Lab. I am also recruiting PhD students in the upcoming cycle (starting fall 2027)! altmemlab.org
altmemlab.org
AltMem Lab
AltMem Lab
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Sam McDougle @actlab.bsky.social · 08/05/2026
Thrilled to have this preprint out, from the amazing Zekun Sun! "Motor abstraction training generalizes to the refinement of specific movement patterns" In brief, across 8 experiments we found evidence of a causal role for abstract representations in motor learning www.biorxiv.org/content/10.6...
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David Clewett @davidclewett.bsky.social · 08/05/2026
Can you make your life feel “longer” in retrospect? Add a dose of change and novelty in the present to later expand memories of your past. Excited to share our work on how dopamine-related processing bends memory to reflect the passage of distinct events. newsroom.ucla.edu/releases/can...
newsroom.ucla.edu
Can dopamine bend time to shape memory?
The brain may use dopamine to expand time between distinct events, enabling us to remember unique episodes.
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megan peters 🧠 @meganakpeters.bsky.social · 22/04/2026
🚨🚨JOB ALERT🚨🚨 I'm hiring a cogsci/philosophy/compneuro postdoc at @ucl.ac.uk @uclbrainscience.bsky.social @uclpals.bsky.social! www.jobs.ac.uk/job/DRH486/p... Come to London & work on frameworks for "testing" for consciousness using Bayesian belief updating & latent variable modeling. Pls share!
jobs.ac.uk
Postdoctoral Research Fellow at UCL
Discover Postdoctoral Research Fellow jobs and more in higher education on jobs.ac.uk. Apply for further details on the top job board.
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Caroline Charpentier, PhD @carocharp.bsky.social · 30/04/2026
🚨🚨 The Social Learning and Decisions Lab is hiring! 🚨🚨 We're looking for a postbacc project coordinator/research assistant to join our team this summer. More details about the position and how to apply here: drive.google.com/file/d/1ySeA... Please share widely and reach out with any questions!
drive.google.com
RA_ad_2026-2027_Charpentier.pdf
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megan peters 🧠 @meganakpeters.bsky.social · 30/04/2026
Neuromatch has been denied our Office of Foreign Assets Control "Iran license" renewal. We had renewed successfully before, but now our request is “inconsistent with current U.S. foreign policy.” I am absolutely gutted by this denial.
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