Elisabeth Parés Pujolràs @epares.bsky.social · 21/06/2026... and this is for people who *did* have advanced skills to begin with. It is important for students to realise you should demand an education that teaches *you* how to learn, understand and do things, rather than cheating you out of this opportunity www.nature.com/articles/d41... 12513
Reposted by Elisabeth Parés PujolràsSteph Bickel @stephanbickel.bsky.social · 18/06/2026New research assistant position available in our human intracranial EEG lab in NY (hbmlab-nyc.com). DM or email me if you're interested to learn more! 245
Reposted by Elisabeth Parés Pujolràsneuromurphy.bsky.social @neuromurphy.bsky.social · 28/05/2026Come join the lab @maynoothuniversity.ie and work with me and stellar collaborators @seanfw.bsky.social and @redmondoconnell.bsky.social! Exciting project at the intersection of multi-task RNNs, compositional cognition and human decision neuroscience. Details and how to apply at shorturl.at/FsTQ0 11714
Elisabeth Parés Pujolràs @epares.bsky.social · 11/05/2026A reviewer's job is to engage with all the complex nuances of actual thoughts, which convey *someone else's* interpretation of the world. Human effort should only be spent understanding human work. Else we will soon be asked to accept that AI-based tools "evaluate" our work - as if they could. 010
Elisabeth Parés Pujolràs @epares.bsky.social · 11/05/2026Poorly-phrased thoughts and also mistaken ones can drive science forward. When reading those, a reviewer can ask: "what do you *mean*?" and a discussion can ensue. But a reviewer cannot ask for the meaning or assess the value of an LLM-generated shell of a sentence, because it contains none. 131
Elisabeth Parés Pujolràs @epares.bsky.social · 11/05/2026No reviewer should have to waste any time trying to make sense of something that was not actually *thought* by someone else. LLMs produce stuff that *looks* sensible, but is an empty shell. 13711
Reposted by Elisabeth Parés PujolràsCharles Logan @charleswlogan.bsky.social · 20/03/2026Solidarity with Emily Tucker and her open letter to students. Tucker writes, "But the great thing is, you don’t have to go along with this, and I urge you not to. You can refuse to use the chatbot. You can tell your professors that you don’t want them to use it or to require you to use it."medium.comAn Open Letter to Georgetown Students, In Response to Recent Announcements about "Generative AI"Image source: Bibliothèque nationale de France An Open Letter to Georgetown Students, In Response to Recent Announcements by the University about “Generative AI” Dear students, As you know, in … 10624228
Elisabeth Parés Pujolràs @epares.bsky.social · 18/03/2026"If everyone thinks technological trends are inescapable, they probably will become so. That is why those serious about the human prospect should reject the rhetoric of fatalism and demand something more substantial." 012
Elisabeth Parés Pujolràs @epares.bsky.social · 18/03/2026...and for those who argue that this transformation is "unavoidable": www.technologyreview.com/1998/03/01/2...technologyreview.comProphets of InevitabilityHuman choices–not immutable forces of nature–govern the development and adoption of technologies. 110
Elisabeth Parés Pujolràs @epares.bsky.social · 18/03/2026Strong agree - doing things faster is not doing them better. Especially if you're not doing them at all. I too refuse to join that ship and agree we should fight to change flawed incentive systems rather than cave to them by slowly surrendering our ability to think for ourselves. 130
Reposted by Elisabeth Parés PujolràsGabriel Weindel @gweindel.bsky.social · 13/03/2026Pressure to use genAI for #ECR is quite high, I feel it weekly... ethical, ecological, economical, privacy- and cognitive-related worries keeps me from joining that ship. I need more time to research not something that creates the illusion of reasoning, if that costs grants or positions, let it be. 182
Reposted by Elisabeth Parés PujolràsAndrew Perfors @perfors.net · 27/02/2026This whole thread is a very important insight as to why getting information from an LLM, even if you are dutiful and vigilant, corrodes your ability to ascertain what is true or not ** LLMs do not provide the info you need in order to evaluate truth. ** 413258
Reposted by Elisabeth Parés Pujolràskiemohr.bsky.social @kiemohr.bsky.social · 26/02/2026Very happy to share this new paper, published in @elife.bsky.social, the last one stemming from a PhD chapter 🥲. In it, @spk3lly.bsky.social and I show that an early V1 signal (the C1) can have direct influence on a perceptual decision. Here's the link: doi.org/10.7554/eLif...doi.org 1178
Reposted by Elisabeth Parés PujolràsRedmond O'Connell @redmondoconnell.bsky.social · 26/02/2026Check out our new paper which isolates a human brain signal that specifically tracks the growing urgency to commit to a choice pubmed.ncbi.nlm.nih.gov/41611534/. This one was a long time coming! Sterling work from @harveymccone.bsky.social and a bunch of past lab members!pubmed.ncbi.nlm.nih.govA Movement-Independent Signature of Urgency During Human Perceptual Decision Making - PubMedHow does the brain adjust its decision processes to ensure timely decision completion? Computational modelling and electrophysiological investigations have pointed to dynamic 'urgency' processes that serve to progressively reduce the quantity of evidence required to reach choice commitment as time e … 11711
Reposted by Elisabeth Parés PujolràsBAMB! @bamb-school.bsky.social · 12/02/2026Applications for BAMB! 2026 are officially open! Join us in Barcelona (July 12–23) to master the art of behavioral modeling with our incredible faculty: @meganakpeters.bsky.social @marcelomattar.bsky.social @khamascience.bsky.social @thecharleywu.bsky.social Apply now here: www.bambschool.orgbambschool.orgBAMB! 2026 | Barcelona Summer School for Advanced Modeling of BehaviorIntensive training for experienced researchers in cognitive science, computational neuroscience and neuro-AI. Five interconnected modules, expert faculty, hands-on projects. July 12-23, 2026. 12827
Reposted by Elisabeth Parés PujolràsMaarten Paulusse @maartenp.bsky.social · 24/02/2026Tired of AI hype posts? You might like my sober assessment of whether AI-generated summaries are suitable for studying and research. Spoiler alert, they are not. The text is primarily aimed at students and researchers, but has much broader relevance. So share freely!: www.tue.nl/en/our-unive...tue.nlAre AI-generated summaries suitable for studying and research?Despite didactic, ethical, and environmental concerns, the use of GenAI is on the rise in academia. For most applications, the jury is still out on whether and how they will benefit education and rese... 12388171
Reposted by Elisabeth Parés PujolràsMichael Pereira @meaperei.bsky.social · 24/02/2026#hiring Come work with us to better understand the neuronal mechanism underlying perceptual consciousness! 18 months postdoctoral position at INSERM in Grenoble, France. ⌛Application deadline 10 March 2026. euraxess.ec.europa.eu/jobs/408445euraxess.ec.europa.euPostdoctoral researcher on single neuron recordings for consciousnessContract period: 18 monthsExpected date of employment: June 2026Proportion of work: Full timeSalary: according to INSERM scales (~2900 – 3300 € gross / month based on experience)Desired level of educa... 12924
Reposted by Elisabeth Parés PujolràsJoao Barbosa @jbarbosa.org · 27/01/2026Postdoc position in Paris: come help develop new generation human brain computer interfaces ⚡🧠💻 Interested? Contact me if you have experience with machine learning (e.g. simulation-based inference, RL, generative/diffusion models) or dynamical systems. See below for + details and retweet 🙏 37556
Reposted by Elisabeth Parés PujolràsArmin Lak @laklab.bsky.social · 05/01/2026New preprint. We show that in addition to reward prediction errors (RPEs), dorsal striatal dopamine signals encode sensory prediction errors (SPEs), the difference between sensory prior & observed stimulus. www.biorxiv.org/content/10.6...biorxiv.orgDorsal striatal dopamine integrates sensory and reward prediction errors to guide perceptual decisionsPerceptual decisions are shaped by expectations about sensory stimuli and rewards, learned through sensory and reward prediction errors. Dopamine is known to convey reward prediction errors that shape... 38626
Reposted by Elisabeth Parés PujolràsSarah Garfinkel @sarahgarf.bsky.social · 24/11/2025** Recruiting a postdoc ** We are looking for a postdoc to work on emotion, mental health, and interoception, based in London at @ucl.ac.uk in my lab (Clinical and Affective Neuroscience). Part of a large Wellcome Grant (co-led with the brilliant @camillanord.bsky.social) 18586
Reposted by Elisabeth Parés PujolràsFrançois Stockart @francoisstock.bsky.social · 29/09/2025Our #sEEG study is now published in Nature Communications: rdcu.be/eIkoG! 🧠 Key finding: We discovered neural evidence accumulation for visual perception that's independent of report preparation—recorded from >3000 channels across 3 experiments! #Neuroscience #Consciousness #OpenAccessrdcu.beCortical evidence accumulation for visual perception occurs irrespective of reportsNature Communications - Perception can occur in the absence of report. Here, the authors use intracranial recordings to show that sequential sampling of sensory evidence in the ventral visual... 03815
Elisabeth Parés Pujolràs @epares.bsky.social · 26/09/2025Overall, our results highlight how prominent neural decision signals may take different shapes in different contexts, and how probing them using tasks that depart from conventional ones can provide important insights into their functional roles. Thanks for reading this far! 010
Elisabeth Parés Pujolràs @epares.bsky.social · 26/09/2025These results align with recent work in an expanded judgement task under volatility, where the CPP following individual tokens shows transient evoked activities that scale with context-optimal belief updates: www.nature.com/articles/s41...nature.comDissociable encoding of evolving beliefs and momentary belief updates in distinct neural decision signals - Nature CommunicationsPeople are capable of making near-optimal decisions in volatile, changing environments. Here, the authors show how two neural decision signals encode distinct aspects of the belief updating process underpinning such adaptive decisions. 100
Elisabeth Parés Pujolràs @epares.bsky.social · 26/09/2025A simple bounded accumulation model could capture the key behavioural patterns in our data, and model-based simulations were able to reproduce the condition-specific profiles of the neural data (CPP & MBL) following each pulse 👇 100
Elisabeth Parés Pujolràs @epares.bsky.social · 26/09/2025Our participants sometimes terminated decisions early, tending to use the second pulse less than the first one, and CPP amplitudes following each pulse reflected this differential weight on choice (i.e. small CPP, small weight on choice), also capturing condition-specific differences in the effect. 100
Elisabeth Parés Pujolràs @epares.bsky.social · 26/09/2025This transient pattern of activity stands in contrast to motor beta lateralisation (MBL), which keeps track of the total sum of accumulated evidence throughout the intervals between pulses and until response. 100
Elisabeth Parés Pujolràs @epares.bsky.social · 26/09/2025We show that when noisy evidence for a single decision comes in temporally separate pulses, the centroparietal positivity (CPP) tracks multiple rounds of evidence accumulation, falling back down to baseline during the intervals in between pulses when no relevant info is presented. 100
Elisabeth Parés Pujolràs @epares.bsky.social · 26/09/2025Check out our reviewed preprint, now out in eLife! With @spk3lly.bsky.social, @redmondoconnell.bsky.social and Anna Geuzebroek elifesciences.org/reviewed-pre... While we work on improving the [solid] paper based on the reviews, here are the key take-home messages:elifesciences.orgPerceptual glimpses are locally accumulated and globally maintained at distinct processing levels 1107
Reposted by Elisabeth Parés PujolràsKobe Desender @kobedesender.bsky.social · 19/09/2025Common neural choice signals reflect accumulated evidence, not confidence! Now out in @cerebralcortex.bsky.social w @helenevanmarcke.bsky.social @pierreledenmat.bsky.social @yfvisser.bsky.social @denizerdil.bsky.social a.o. Paper: desenderlab.com/wp-content/u... Thread ↓↓↓ 14721
Reposted by Elisabeth Parés PujolràsGabriel Weindel @gweindel.bsky.social · 15/09/2025Will you be at #ICON2025 in Porto? Then drop at our symposium on "Decision Signal(s) In The Electro-encephalogram" (SY23, Thursday at 13.45) with @redmondoconnell.bsky.social @nunezanalyzed.bsky.social @tarrynbalsdon.bsky.social @hcp4715.bsky.social organized by Leendert van Maanen and Jelmer Borst 2103
Elisabeth Parés Pujolràs @epares.bsky.social · 15/09/2025Excited to be in Porto for #ICON2025! I will be at poster session 2 tomorrow (Tuesday) afternoon (P2.20) talking about evidence accumulation and choice-encoding centroparietal signals in the human EEG. Come say hi! 041
Reposted by Elisabeth Parés PujolràsMariana Babo-Rebelo @mbaborebelo.bsky.social · 15/09/2025📢Fully Funded PhD position in Barcelona! I'm excited to announce that I’m opening a PhD position at @idibaps.bsky.social, Barcelona! We'll investigate the role of bodily signals in autobiographical memory, using virtual reality, EEG and TMS, in healthy volunteers and patient populations. 2147
Elisabeth Parés Pujolràs @epares.bsky.social · 13/09/2025Excellent piece. We know how to improve writing ability: it's by doing more, not less of it. "LLMs do not improve one’s writing ability much like taking a taxi does not improve one’s driving ability. Students should hone their writing, thinking, and other academic skills at every opportunity." 05124
Reposted by Elisabeth Parés PujolràsInternational Brain Laboratory @intlbrainlab.bsky.social · 03/09/2025Two flagship papers from the International Brain Laboratory, now out in @Nature.com: 🧠 Brain-wide map of neural activity during complex behaviour: doi.org/10.1038/s41586-025-09235-0 🧠 Brain-wide representations of prior information in mouse decision-making: doi.org/10.1038/s41586-025-09226-1 + 212569
Reposted by Elisabeth Parés PujolràsSimon Kelly @spk3lly.bsky.social · 21/08/2025New paper from the lab indicates some surprising differences in visual cortical contributions to two popular VEP types. In it, Kieran uses some of his brilliant tricks from last year's paper:direct.mit.eduVisual cortical area contributions to the transient, multifocal and steady-state VEP: A forward model-informed analysisAbstract. Central to our understanding of how visual-evoked potentials (VEPs) contribute to visual processing is the question of where their anatomical sources are. Three well-established measures of ... 041
Reposted by Elisabeth Parés PujolràsSimon Kelly @spk3lly.bsky.social · 21/08/2025Check out our new multisensory decision study! We tackle a decades-old Q: does faster detection of bimodal targets come from a race or co-activation between modalities? And also a vital, orthogonal Q: is it one decision process or two? A1: co-activation A2: two! Read here: rdcu.be/eASYdrdcu.beDistinct audio and visual accumulators co-activate motor preparation for multisensory detectionNature Human Behaviour - Egan et al. examine multisensory evidence accumulation and show that auditory and visual evidence is accumulated in distinct processes during multisensory detection, and... 11911
Elisabeth Parés Pujolràs @epares.bsky.social · 12/08/2025A timely reminder that not everything can be outsourced - writing is thinking www.nature.com/articles/s44...nature.comWriting is thinking - Nature Reviews BioengineeringOn the value of human-generated scientific writing in the age of large-language models. 020
Reposted by Elisabeth Parés PujolràsPaul Linton @lintonvision.bsky.social · 10/08/2025CONVERSATIONS ON CONSCIOUSNESS How the CCN Community Can Contribute #CCN2025 on Wednesday 13th (10am 🇪🇺) Livestream link below ➡️ Exploring the possibility of Computational Consciousness Science ➡️ Discussing three Templeton World Charity Foundation Adversarial Collaborations 15614
Reposted by Elisabeth Parés Pujolràskiemohr.bsky.social @kiemohr.bsky.social · 29/07/2025Delighted to share this paper, now published in @arvoinfo.bsky.social. With @spk3lly.bsky.social and Anna Geuzebroek we explored differences in visual cortical responses for pattern pulses and pattern reversals. Here's the link: jov.arvojournals.org/article.aspx...jov.arvojournals.org Pattern-pulses and pattern-reversals evoke different cascades of cortical sources in the multifocal visual evoked potential | JOV | ARVO Journals 0106
Reposted by Elisabeth Parés PujolràsO'Connell Lab @connelllab.bsky.social · 01/07/20251/3 Check out our new commentary bsky.app/profile/imag.... 1105
Reposted by Elisabeth Parés PujolràsJohn P Grogan @johnpgrogan1.bsky.social · 10/06/2025Our newest preprint is out (doi.org/10.1101/2025.06.05.658071), with @lucvermeylen.bsky.social,Dasha Monakhovych, Cameron McCabe, Sarah-Louise Mannion, @kobedesender.bsky.social, @redmondoconnell.bsky.social, comparing post-decision confidence models against behaviour and neural decision signals...doi.orgNeurally-informed modelling unravels a single evidence accumulation process for choices and subsequent confidence reportsSubjective confidence in perceptual choices depends on computations occurring prior to and after choice commitment. However, the nature of these computations remains unclear. Current models disagree o... 1149
Elisabeth Parés Pujolràs @epares.bsky.social · 28/04/2025We believe our results hint at a flexible neural architecture that can adapt to different decision contexts, and highlight how the CPP may play a key intermediary role in adaptive evidence accumulation. Stay tuned for upcoming related work, and thanks for reading! 000
Elisabeth Parés Pujolràs @epares.bsky.social · 28/04/2025The way that the CPP behaves in this task seems very different from its well-established characteristics in static contexts with continuous evidence (e.g. classic random dot motion tasks), where it reflects the absolute cumulative sum of evidence. 100
Elisabeth Parés Pujolràs @epares.bsky.social · 28/04/2025Further, we found that the centroparietal positivity (CPP) tracks effective evidence (i.e. it reflects how much a DV changes following a token, rather than just stimulus information), but it does not keep a sustained representation of the DV. 100
Elisabeth Parés Pujolràs @epares.bsky.social · 28/04/2025We found that motor beta lateralisation kept track of an evolving decision variable (DV) in a sustained manner over trial time, consistent with previous MEG work: www.nature.com/articles/s41...nature.comAdaptive circuit dynamics across human cortex during evidence accumulation in changing environments - Nature NeuroscienceOptimal decision making in a changing world requires non-linear evidence accumulation. Murphy et al. report signatures of this adaptive computation in recurrent dynamics of human parietal and motor co... 100
Elisabeth Parés Pujolràs @epares.bsky.social · 28/04/2025Because the normative solution to this task does not prescribe perfect accumulation, we could dissociate objective evidence presented on the screen from effective evidence (i.e. the belief updates that each token triggered), and map these quantities onto neural signals. 100
Elisabeth Parés Pujolràs @epares.bsky.social · 28/04/2025We used an expanded judgement task where participants watched a slow sequence of discrete tokens (400 ms per token, up to 10 tokens) which favoured one of two possible choices. The task was volatile, which means that the choice supported by the tokens may change within a trial. 100
Elisabeth Parés Pujolràs @epares.bsky.social · 28/04/2025Very happy to share this paper, now published in @natcomms.nature.com! nature.com/articles/s41... With @spk3lly.bsky.social and @neuromurphy.bsky.social, we investigated the neural computations that allow us to make near-optimal decisions in changing environments. Here's a short summary:nature.comDissociable encoding of evolving beliefs and momentary belief updates in distinct neural decision signals - Nature CommunicationsPeople are capable of making near-optimal decisions in volatile, changing environments. Here, the authors show how two neural decision signals encode distinct aspects of the belief updating process un... 2178
Reposted by Elisabeth Parés PujolràsJade Duffy @jduffy9.bsky.social · 24/03/2025In life, 3 things are certain: death, taxes, and decision-making variability🧠. Our review tinyurl.com/4dcwafc4 explores how computational models 💻 explain variability, their limits, and recent advances. A thread🧵👇 @redmondoconnell.bsky.social @neuromurphy.bsky.social Mark Bellgrove (not on Bluesky)nature.comDisentangling sources of variability in decision-making - Nature Reviews NeuroscienceIdentifying the psychological and neurobiological processes underpinning intra-individual variations in choice behaviour presents a formidable challenge. In this Review, Duffy et al. discuss how algor... 24526
Reposted by Elisabeth Parés PujolràsMarino Pagan @marinopagan.bsky.social · 21/03/20251/7 Our paper on individual variability in decision-making is finally out in @nature.com! Inspired by the classic work by Mante and Sussillo, we trained many rats to solve context-dependent decision-making, and we found that different brains use different neural mechanisms to solve the same task!nature.comIndividual variability of neural computations underlying flexible decisions - NatureBehavioural experiments to study decision-making in response to context-dependent accumulation of evidence provide testable models that are consistent with the heterogeneity in neural signatures among... 623685