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Rachel Ryskin

@ryskin.bsky.social
565 followers 395 following 39 posts

Cognitive scientist @ University of California, Merced | raryskin.github.io PI of Language, Interaction, & Cognition (LInC) lab | linclab0.github.io

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Rachel Ryskin @ryskin.bsky.social · 07/10/2026
🧠 Takeaway: we understand speech by reasoning in real time over a generative model—noise included—updated by implicit stats & explicit causal beliefs. 🤖 HuBERT's representational geometry offers a window into that noise model & a test of AI speech models vs. human gaze. 💬 Feedback very welcome!
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Rachel Ryskin @ryskin.bsky.social · 07/10/2026
Finally, after the Noisy block, some participants saw "FATAL ERROR: Audio files corrupted," and the experimenter "fixed" it. These listeners tended to show lower τ in the next block than those given no explanation. The noise can be "explained away!"
Posterior of the listener’s noise estimate, τ, per block condition. Lowest values are for the Intact block that came first, and highest values are for the Noisy block that came first.
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Rachel Ryskin @ryskin.bsky.social · 07/10/2026
To test adaptation of the noise model, in "Noisy" blocks, 2/3 of fillers had noise spliced in. Listeners' τ was: - higher in Noisy vs. Intact blocks - still elevated in Intact blocks after Noisy ones - lower in Noisy blocks after Intact ones Listeners track noise statistics over time.
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Rachel Ryskin @ryskin.bsky.social · 07/10/2026
This simple model captures the classic gaze patterns: Early competitors draw looks, then drop off after disambiguation. Late competitors attract looks above unrelated distractors later, indicating that listeners maintain uncertainty about the past input.
Multi-panel figure of eye-tracking data across four time windows of interest and model posterior summary. Top-left: Timecourse of proportion of eye fixations to targets and competitors downsampled to four time windows in the No competition and Early competition conditions. Top-middle: Timecourse of proportion of eye fixations to targets and competitors downsampled to four time windows in the No competition and Late competition conditions. Bottom-left: Posterior model predictions (50 posterior draws) over four time windows by ROI (target and competitor/distractor) in the No competition and Early competition conditions. Bottom-middle: Posterior model predictions (50 posterior draws) over four time windows by ROI (target and competitor/distractor) in the No competition and Late competition conditions. Right: Correlation between posterior model predictions and average eye fixation proportions: points represent means per competition condition, time window, and ROI (labels indicate the ROI and time window). Black line indicates identity line. There is a strong correlation between model predictions and observed data, with some deviations.
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Rachel Ryskin @ryskin.bsky.social · 07/10/2026
Gaze is modeled as incremental Bayesian belief updating: the posterior at one moment becomes the prior for the next. The noise likelihood comes from acoustic similarity in HuBERT's representation space, scaled by an uncertainty parameter τ.
Two graphs illustrating incremental “noisy-channel” speech comprehension. The left graph shows how the likelihood is proposed to be modulated by a noise/uncertainty parameter, τ (arbitrary “high”
and “low” values chosen for visualization). Higher assumed noise (larger τ) flattens the distribution, pulling the probabilities of an acoustic input given different referents closer to uniform. The right graphs shows idealized posterior predictions across four timesteps in the unfolding spoke input and the effect of τ. At the first timestep, before the onset of the noun, the posterior probability, is equal for all four possible referents because they are equally likely to be referred to a priori and the probability of saying “Click on the...” is also equally high for all possible referents. At the second timestep, the priors for referents are taken from the posteriors at the previous timestep. The listener hears /'bi:/, so the probability of the input given the beaker and beetle referents is equally high, whereas the probability of the utterance given the other two possible referents is very low. At the third timestep, the listener hears /k/, so the probability of the input given the beaker and speaker referents is equally high, whereas the probability of the utterance given the other two possible referents is very low. At
the last timestep, the listener hears “er,” so again the probability of the utterance given the beaker and speaker referents is equally high, whereas the probability of the utterance given the other two possible referents is very low. When there is more noise overall (higher τ), there is more uncertainty in the posterior over referents at each timestep.Illustration of noise likelihood estimation pipeline. The top half shows how the HuBERT model was used to extract embeddings across layers for target, competitor, and distractor audio. Pairs of audio stimuli were aligned using dynamic time warping. On the bottom left, a graph shows the cosine similarity between embeddings for the beaker-speaker pair per frame for each layer. Dashed lines indicate the critical time windows used for averaging and fitting eye-tracking data. On the bottom right, a graph shows the performance of the model in predicting eye-tracking data across HuBERT layers. Layer 10 (red point) was found to lead to the best performance. Layer 9 (orange) had comparable performance.
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Rachel Ryskin @ryskin.bsky.social · 07/10/2026
Open Qs: What does that noise model look like, and how flexible is it? I investigate this w/ eye tracking data from a classic visual world paradigm study (Allopenna et al., 1998): 👂"Click on the beaker" & 👁️ display that might also include a beetle (early sound overlap) or a speaker (late overlap).
Figure illustrating visual world paradigm eye-tracking experiment. The bottom half of the image shows a waveform over the words "Click on the beaker" and a person sitting in front of an eye-tracker and computer display. The top half of the image shows computer displays corresponding to 3 conditions. In each, there are 4 images (1 per screen quadrant). If the trial is in the "No competition" condition, there is an image of a beaker and 3 unrelated images. In the "Early Competition" condition, there is an image of a beaker as well as a beetle (and 2 unrelated images). And in the Late Competition condition, there is an image of a beaker and a speaker (and 2 unrelated images).
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Rachel Ryskin @ryskin.bsky.social · 07/10/2026
According to noisy-channel accounts, listeners infer what a speaker meant by combining prior expectations with a model of how the message might get corrupted (e.g., speech error, loud noise, lapse in attention). If you heard "hand me the pork" with only a fork in sight, you would hand over the fork.
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Rachel Ryskin @ryskin.bsky.social · 07/10/2026
🧵 New preprint! Speech is noisy, yet we usually understand it. I used eye-tracking + a self-supervised speech model (HuBERT) to show that speech comprehension unfolds as real-time Bayesian "noisy-channel" inference & that listeners tune their noise model to their environment 👇 osf.io/preprints/ps...
osf.io
OSF
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Josh McDermott @joshhmcdermott.bsky.social · 07/10/2026
Postdoc opening in my lab to work on NeuroAI approaches to improve prosthetic devices for human hearing. We offer a great training environment and strong mentorship. Prior expertise in machine learning and signal processing are essential. Apply here: careers.peopleclick.com/careerscp/cl...
careers.peopleclick.com
Postdoctoral Associate
MIT - Postdoctoral Associate - Cambridge MA 02139
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Laura Gwilliams @lauragwilliams.bsky.social · 06/10/2026
delighted to share my review article, out now in Trends in Cognitive Sciences! i have been thinking a lot about dynamics lately. this article outlines three key principles - persistence, parallelism, and time-stamped encoding - that support human speech comprehension 🧠✨🌀
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Laurel Brehm @drlearnasaurus.bsky.social · 02/10/2026
What’s role of fun in linguistics? Do you do linguistics/language research where you collect data from people? Looking for language researchers across subfields to do a short survey about how they think about the role of fun in collecting data! Survey here: ucsb.co1.qualtrics.com/jfe/form/SV_...
ucsb.co1.qualtrics.com
Qualtrics Survey | Qualtrics Experience Management
The most powerful, simple and trusted way to gather experience data. Start your journey to experience management and try a free account today.
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Rachel Ryskin @ryskin.bsky.social · 02/10/2026
These are great opportunities that can lead to tenure-track positions in the UC system. Happy to support a PPFP application if there’s a good research fit!
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Shravan Vasishth @shravanvasishth.bsky.social · 01/10/2026
Applications are open for the 2027 summer school on statistical methods for linguistics and psychology: All details are here: smlp.science
smlp.science
The Eleventh Summer School on Statistical Methods for Linguistics and Psychology
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Ben Fulcher @bendfulcher.bsky.social · 29/09/2026
Today I'm releasing the "1000×1000 collection": a unified place to learn about dynamical structure. 1000 simulated time series (1000 samples each) spanning 133 dynamical processes. Have a play? 🐛 #timeseries #dynamicalsystems #complexity #opendata dynamicsandneuralsystems.github.io/1000x1000/
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Michelle Greene @mgreenephd.bsky.social · 25/09/2026
🚨New paper alert! 🚨 The visual system tunes itself to the statistics of its input. How do individual experiences differently tune vision? In this work, @bjbalas.bsky.social and I examined how one individual difference—height—changes the visual diet and how this affects perception. 1/
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Dirk Gütlin @gutlin.bsky.social · 25/09/2026
📣📣📣 Preprint Alert! 📣📣📣 Do predictive processes shape brain representations during learning? We investigated the effect of Predictive Coding by training identical recurrent networks with different optimization procedures and then comparing them to human EEG under the same visual learning task.
Overview figure of our learning paradigm, architecture, and analysis procedure.
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Open Encyclopedia of Cognitive Science bot @oecs-bot.bsky.social · 24/09/2026
Converting abstract thoughts into fluent speech requires a rapid, subconscious orchestration of syntactic structure, word choice, and motor planning. Language Production by Zenzi M. Griffin doi.org/10.21428/e2759450.b076f599 #CognitiveScience
Open Encyclopedia of Cognitive Science: "Language Production" by Zenzi M. Griffin. Speakers are typically aware of the ideas they want to express but not the steps involved in getting from those ideas to a series of motor movements. Consider describing an image with the sentence, “B
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Tomer Ullman @tomerullman.bsky.social · 24/09/2026
since I'm getting many pokes about grad school applications, I wanted to re-up some previous public advice on grad school applications. looking back at it a year on, I still think all this is right, but let me update the 'research statement' part to include a bit on genAI:
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Ken Paller @paller.bsky.social · 20/09/2026
Announcing two tenure-track faculty openings in the Psych Dept at Northwestern University: Cognitive/Affective Neuroscience and Clinical Psychology psychology.northwestern.edu/people/facul...
psychology.northwestern.edu
Job Opportunities: Department of Psychology - Northwestern University
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Simon Kirby @simonkirby.bsky.social · 15/09/2026
We uncovered spontaneous evolution of new languages in populations of AI agents. This creates extraordinary scientific opportunities but also safety risks. New blog post with about how we created a platform for studying this safely. www.schmidtsciences.org/glossogen/
schmidtsciences.org
AI Agents Evolve Their Own Languages
Schmidt Sciences’ new AI Agents Evolving Communication and Coordination pilot program works toward advancing foundational research on multi-agent communication and coordination, and building an open-s...
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Federico Rossano @federicorossano.bsky.social · 15/09/2026
UCSD Cognitive Science Department is hiring an Assistant Professor incorporating novel computational approaches in the study of biological and/or artificial intelligence. I have had the privilege of working in this department for 10 years and the intellectual environment really is unique. 1/3
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Matt Goldrick @mattgoldrick.bsky.social · 11/09/2026
Deadline Nov 9: Asst prof (tenure track), cognitive science: "foundational issues in cognitive science, incorporating modern computational approaches, to deepen our understanding of biological and/or artificial minds and intelligences", U California San Diego apol-recruit.ucsd.edu/JPF04633
apol-recruit.ucsd.edu
Assistant Professor in Cognitive Science
University of California, San Diego is hiring. Apply now!
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Kunal Jha @kjha02.bsky.social · 11/09/2026
Can self-interested, self-improving, self-replicating agents learn to cooperate? Our new paper, Tapes Together Strong, shows they can: when social behavior, computation, and reproduction share one energy budget, cooperation evolves from scratch. arxiv.org/abs/2609.10817 🧵
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Cogan Lab @coganlab.bsky.social · 18/08/2026
How does a speech plan become fluent movement? In Nature Human Behaviour, led by Kumar Duraivel: Intracranial recordings reveal how hierarchical speech plans become continuous motor sequences across planning, articulation, and monitoring networks. doi.org/10.1038/s415... 1/5
doi.org
Distinct neural processes link speech planning and execution - Nature Human Behaviour
Direct recordings from the human brain reveal a hierarchy in planning to speak, with neural activity organizing whole syllables before the individual sounds that compose them are sequenced.
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Riccardo Fusaroli @fusaroli.eurosky.social · 10/09/2026
How does the architecture of a city shape the way we think, talk, and draw space? And how do spatial conventions travel across cultural generations? New paper in Open Mind, spearheaded by Z Alinam (w J Nölle, C Vesper, K Tylén & me): doi.org/10.1162/OPMI.a.380 🧵 1/
doi.org
When the City Speaks: How Urban Form Shapes the Cultural Transmission of Spatial Conceptualization
Abstract. How do urban environments shape the way people conceptualize and communicate space? Using a cultural transmission experiment in virtual reality, we asked participants to navigate one of two ...
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Lindsey Powell @lindseypowell.bsky.social · 09/09/2026
UCSD Psychology is hiring!! We’re seeking a new assistant professor colleague who studies high-level human cognition, broadly construed. Please share and/or apply! apol-recruit.ucsd.edu/JPF04646
apol-recruit.ucsd.edu
Assistant Professor in High-level Human Cognition
University of California, San Diego is hiring. Apply now!
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Alexey Koshevoy @alexeykoshevoy.bsky.social · 07/09/2026
Are you interested in lexical competition, agent-based modelling, strong inference and Ukrainian? Then this paper, just published in @pnasnexus.org, is for you. With @oliviermorin.bsky.social and @sobchuk.bsky.social, we asked a simple question: why do some words become more common than others?
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Andrea de Varda @andreadevarda.bsky.social · 01/09/2026
New preprint! 🧠👀🤖 Behavioral and brain responses to language reflect different levels of linguistic representation w/ @whylikethis.bsky.social , @evfedorenko.bsky.social , and @rplevy.bsky.social (1/10)
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Tom McCoy @rtommccoy.bsky.social · 01/09/2026
🤖🧠NEW PAPER🧠🤖 (The result of an 8-year project!) LLMs seem very different from symbolic systems. Yet LLMs excel in symbolic domains (e.g., language/code/math). How do they do it? Our finding: LLM representations have implicit symbolic structure! Link in thread ⬇️ 1/n
Overview of the paper. 
Title: The Emergent Symbolic Structure of Artificial Neural Networks
Authors: Tom McCoy, Paul Soulos, Tal Linzen, Paul Smolensky
Left: Neural networks encode information in vectors (there is then an image of a vector), yet they excel at tasks long thought to require symbolic structure (there is then an image of a symbolic representation, specifically a syntax tree). How do LLMs do it?
Right: We find that LLM representations can be closely approximated with symbolic structures. This approximation lets us edit the structure of an LLM’s output by editing the structure of its internal representations, as shown. There is then an image of two edits to LLMs. In the first one, the original input is 3 + 6 * 8, with an answer of 51. But if we swap the positions of the 3 and the 6, the output becomes 30. In the second one, the original input is a Python command repeating the list [Z, U] three times, producing [Z, U, Z, U, Z, U]. But if we edit the input in a way that adds a Q at the end of the input, the output becomes [Z, U, Q, Z, U, Q, Z, U, Q].
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Sam Gershman @gershbrain.bsky.social · 01/09/2026
If this makes you mad, submit your cognitive science research to @openmindjournal.bsky.social No APCs, no subscription fees. It's funded by university libraries, at low cost.
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Veera Ruuskanen @veerahelmisofia.bsky.social · 20/08/2026
Super excited to see our review out in TiCS! Here me & @cogsci.nl present the first comprehensive framework of the mechanisms driving relationships between spontaneous pupil-size fluctuations, neural activity, and behavior 👀🧠👩🏻‍💻 Spoiler: arousal is only one of at least four 😶‍🌫️ doi.org/10.1016/j.ti...
doi.org
Redirecting
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Federico Rossano @federicorossano.bsky.social · 20/08/2026
Chimpanzees usually fail a simple pointing task that human infants and dogs pass. In our new iScience paper, we provide a possible explanation: once their attention is engaged, chimpanzees use human pointing to find hidden food 73% of the time. Attention may be the missing piece.
Figure 2. Three photos showing the experimental conditions. Left: the experimenter points toward the baited container while calling the chimpanzee’s name and making food grunts. Center: he points without vocal attention-getting cues. Right: he provides gaze and food grunts but does not point. Chimpanzees succeeded only when attention-getting cues and pointing were combined.
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Neurosynth @neurosynth.bsky.social · 28/08/2026
Exciting update! You can run Image Based Meta-Analyses (IBMA) on our platform 🚀 We've known for ~TWO decades that images are better than coordinates, but data has never been shared/organized properly to make that an accessible reality. We did it, enjoy: compose.neurosynth.org
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Amanda Van Horne @telllab.bsky.social · 25/08/2026
careers.udel.edu/cw/en-us/job... My lab is hiring a postdoc to help wrap up a clinical trial (data wrangling/data sharing/stats and and analytics /publications related to child psycholinguistics). Position begins immediately. #rstats #slpeeps #childlanguage #DLD please reach out if interested!
careers.udel.edu
University of Delaware - Details - Post Doctoral Researcher, College of Health Sciences
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Rachel Ryskin @ryskin.bsky.social · 24/08/2026
Very clear demonstration of the remarkable preservation of the language network in the brains of older adults (in contrast to the MD network)! 🧠 👵
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Caterina Gratton @caterinagratton.bsky.social · 24/08/2026
🚨Job Search announcement 🚨 @psychillinois.bsky.social is searching for an assistant prof in cognitive neuroscience. Come join us! Pls RT 🙏 Full ad: illinois.csod.com/ux/ats/caree... #neuroskyence #psychscisky #neuroimaging
illinois.csod.com
Assistant Professor- Psychology - College of LAS
Duties & Responsibilities
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Rachel Ryskin @ryskin.bsky.social · 15/08/2026
@salonisameernaik.bsky.social did a fantastic job leading this—impressive since she isn't even in grad school yet (applying this fall!). Super fun to collab w/ @tylermarghetis.bsky.social on the role of perceptual processes in seemingly abstract math reasoning. See thread & preprint for details!👇
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Damián Blasi @damianblasi.bsky.social · 05/05/2026
Join us in Barcelona for a postdoc! We are looking for candidates with a strong NLP/ML/AI background and an interest in linguistic diversity and human and machine cognition: dub.sh/blasi_nlp_po...
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Tianyuan Teng @tyteng.bsky.social · 13/08/2026
You'd think people prefer the simplest explanation of an uncertain world — Occam's razor. Our data says no, across 2 modalities, 2 tasks, 8 experiments: people often perceive illusory structure that isn't there and prefer moderate complexity. Out now in Nature Comms! www.nature.com/articles/s41...
nature.com
Human learning of probability distributions is biased toward moderate structural complexity - Nature Communications
Humans build internal models from online observations to adapt to new environments. Here, the authors show that individuals are biased towards building models with moderate structural complexity, rega...
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Jenni Rodd @jennirodd.bsky.social · 13/08/2026
A (somewhat self-indulgent) preprint summarising what I think connectionism/LLMs can tell psychologists about what word meanings might be. I'd really appreciate feedback and comments. osf.io/preprints/ps...
osf.io
OSF
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Cory Shain @coryshain.bsky.social · 13/08/2026
First, I want to stress that the method is dead simple and the results are pretty robust to design variations. If you apply matrix decomposition to individualized fMRI timecourse data, one of the resulting components will probably be a language network. 4/
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Cory Shain @coryshain.bsky.social · 13/08/2026
Now out in @natcomms.nature.com w/ @evfedorenko.bsky.social: across many people (>1k) and tasks (>300), the the brain's language network reliably shows up in the functional connectome (correlated activity in fMRI). 1/
Screen capture of abstract of published article.

Title: A language network in the individualized functional connectomes of 1199 human brains doing arbitrary tasks

Abstract: A century and a half of neuroscience has yielded many divergent theories of the neurobiology of language. Two factors that likely contribute to this situation include (a) conceptual disagreement about language and its component processes, and (b) intrinsic inter-individual variability in the topography of language areas. Recent functional magnetic resonance imaging (fMRI) studies of small numbers of intensively scanned individuals have argued that a language-selective brain network emerges bottom-up from correlations (individualized functional connectomics, iFC) in task-free (e.g., rest) or task-regressed activation timecourses. Here we tested this hypothesis at scale and evaluated its practical utility for task-agnostic language localization: we apply iFC separately to each of 1,957 (fMRI) scanning sessions (1...
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Iban Dlank (b↔︎d) @ibandlank.bsky.social · 13/08/2026
New resource: intro workshop on contextual embeddings in Language Models! Free, standalone Google Colab notebook with lots of explanations. Built for psycholing/cogsci folks (and anyone curious about LM internals). No coding required! Just edit-and-run. 🧵 github.com/idanblank/LM...
github.com
LM-embedding-workshop-data/LM_embedding_workshop_notebook_public.ipynb at main · idanblank/LM-embedding-workshop-data
Data for a workshop on using LM contextual embeddings - idanblank/LM-embedding-workshop-data
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Matt Goldrick @mattgoldrick.bsky.social · 12/08/2026
Open until filled (🚨🚨apply now!🚨🚨): Postdoc, speech acoustics and major depressive disorder, with me!, Northwestern Linguistics (working with folks in Psychology and Psychiatry). faculty.wcas.northwestern.edu/matt-goldric...
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Seungju Kim (he/him) @follhim.net · 11/08/2026
Did you know: you can anonymize a GitHub repo for peer review? A real alternative for OSF anonymous.4open.science
anonymous.4open.science
Anonymous Github
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Matan Mazor @matanmazor.bsky.social · 07/08/2026
This is amazing from a cognitive science perspective. The new intelligences are here.
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Nature Reviews Psychology @natrevpsychol.nature.com · 03/08/2026
Prediction in language comprehension across the lifespan Review by Kara D. Federmeier, Hui-Sun Chiu, Cynthia L. Fisher & Yukun Yu go.nature.com/4w4Mn4G #psychscisky
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Eugene Vinitsky 🍒 @eugenevinitsky.bsky.social · 02/08/2026
Be kind to the academics in your life and try to help them pretend it's still July
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Matt Goldrick @mattgoldrick.bsky.social · 03/08/2026
Deadline Dec 1: Asst prof (tenure track), open area, ‼️NU Linguistics‼️ "an integrated approach to the scientific study of language, utilizing experimental, computational, and/or data-intensive approaches to inform linguistic theory and its applications" linguistics.northwestern.edu/about/open-p...
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Minds, Machines, and Brains (MMB) @mmb-journal.bsky.social · 02/08/2026
Hello world! 👋 We’re Minds, Machines, and Brains (MMB) 👤🤖🧠 a new open access journal from @mitpress.bsky.social exploring the principles of intelligence and cognition across natural and artificial minds. Submissions open this Fall! 🔗 direct.mit.edu/mmb
direct.mit.edu
Minds, Machines, and Brains | MIT Press
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