June 2026 - Comp-neuro - lists.cnsorg.org

PhD Position at the the Institute of Neurosciences, Alicante

by Maximilian Eggl

Dear all, We are seeking a highly motivated PhD student to join the Translational Imaging Biomarkers Lab at the Institute of Neurosciences (CSIC–UMH, Alicante, Spain), working Dr. Maximilian Eggl and collaborating with Dr. Silvia De Santis. The position is fully funded for 3 years (with possible extension) and has an expected start date in Autumn 2026. Our research combines mathematics, machine learning, neuroimaging, and neuroscience to develop innovative computational tools for understanding brain health and disease. Current research directions include AI-inspired biomarkers of brain structure and function, simulation-based inference, quantitative MRI, computational neuroscience, and mechanistic modelling of biological systems. The successful candidate will join a highly interdisciplinary and international research environment at the interface of neuroscience, mathematics, artificial intelligence, and medical imaging. The exact project will be tailored to the interests and background of the successful candidate. Applicants should have (or be close to obtaining) a Master's degree in a quantitative discipline such as applied mathematics, physics, computer science, engineering, data science, computational neuroscience, or a related field. Strong programming skills (preferably in Python) and experience with mathematical modelling are required. Experience with machine learning, scientific computing, Bayesian inference, neuroimaging, or computational neuroscience is advantageous but not required. The Institute of Neurosciences (CSIC–UMH) is one of Europe's leading neuroscience research centres, bringing together researchers across molecular, cellular, systems, and computational neuroscience. Located in Alicante on Spain's Mediterranean coast, the institute offers an outstanding research environment together with an excellent quality of life, including year-round sunshine, beaches, and easy access to outdoor activities. Interested candidates are encouraged to contact meggl(a)umh.es with a CV and a 300 word description of interest. Further information can be found in the following flyer <https://in.umh-csic.es/wp-content/uploads/2026/06/Advertisement.pdf>. Please feel free to distribute this announcement to interested students and colleagues. Best regards, Max ******************************************** Maximilian Eggl, PhD La Caixa Junior Leader Fellow | CSIC - Spanish National Research Council Instituto de Neurociencias, CSIC/Universidad Miguel Hernandez, Alicante, Spain Web: mfeggl.github.io ********************************************

June 13, 2026

Computational Consciousness Science - 1 August 2026, New York

by Paul Linton

We are pleased to announce a one-day meeting (a CCN 2026 <https://2026.ccneuro.org/> satellite event) on 1st August 2026 in New York: COMPUTATIONAL CONSCIOUSNESS SCIENCE A recent explosion of interest in computational models of consciousness comes both from our attempts to extend computational models of perception and cognition to their subjective aspects and from the importance of consciousness to the ethical implications of AI models. This satellite meeting examines computational approaches from the points of view of philosophy, psychology, and neuroscience, with keynotes from David Chalmers (philosophy), Marisa Carrasco (psychology), and Biyu He (neuroscience). There will also be research talks from faculty, postdocs, and PhDs highlighting the contribution of computational models to our understanding of change-blindness, iconic memory, spatial perception, and visual illusions, as well as helping us to develop new measures of conscious awareness. A closing panel discussion will explore new and future directions for the emerging discipline of computational consciousness science. Date: Saturday, August 1, 2026 Location: NYU Department of Philosophy, 5 Washington Place, New York, NY 10003 Registration: Free but please register because we have to give a list of attendees to security. Link for details and registration: https://computationalconsciousness.github.io/

June 13, 2026

Call for registration and contribution to Systems Vision Science (SVS) Virtual Symposium: July 31, 2026

by Pavlovic, Maria

<https://summerschool.lizhaoping.org/symposium-2026/> Systems Vision Science (SVS) Virtual Symposium: July 31, 2026, 14:00-18:00 German Time as the end of the <https://summerschool.lizhaoping.org/application-virtual-svs/> Systems Vision Science Virtual Summer School, which is a virtual edition of the onsite <https://summerschool.lizhaoping.org/editions-in-previous-years/> summer schools and symposiums of SVS. We invite <https://docs.google.com/forms/d/e/1FAIpQLSfCIzbDUeswiWyB39JE9VX7Jj-DYJ5ajh8…> free registration and contribution for symposium participation and/or contribution. -------------------------------- The symposium will include two keynote speeches (30 min each): “Corticocortical Feedback as a Unifying Mechanism for Visual Perception and Learning” by <https://brain.bnu.edu.cn/English/Faculty/CurrentFaculty/Lzz/3531a3bc3145494…> Wu Li, State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University "Using illusions and art to understand the visual brain" by <https://cavlab.net/page/> Patrick Cavanagh, Center for Vision Research, York University and invited and contributed speeches (15 minutes each). Invited speakers include Daniel Anthes, Marlene Behrmann, Marisa Carrasco, Winrich Freiwald, Richard Krauzlis, Lisa Kroell, and Zygmund Pizlo. The presentation topics will be any of <https://www.lizhaoping.org/Systems-Vision-Science.html> Systems Vision Science, which combines computational, behavioral, and neuroscience methods to discover and investigate functions and algorithms for vision in various brain regions and their implementations in neural circuits. -------------------------------- To contribute or register, please fill out our registration form <https://docs.google.com/forms/d/e/1FAIpQLSfCIzbDUeswiWyB39JE9VX7Jj-DYJ5ajh8…> ( which has an option to submit an abstract for contribution). Deadline for submitting contribution is July 12, 2026, and registration without contribution is open until capacity is reached. The zoom link for joining the symposium will be sent to the registrants. Please direct inquiries to svs.summerschool(a)tue.mpg.de <mailto:svs.summerschool@tue.mpg.de> . -------------------------------- Organizing Team Li Zhaoping Maria Pavlovic Vladislav Aksiotis Kai Rothe Max-Planck-Institute for Biological Cybernetics University of Tübingen

June 12, 2026

AISB26 @Sussex - final chance for early bird registration

by Simon Bowes

AISB Convention 2026<https://aisb.org.uk/aisb-convention-2026/> Final extension to the early bird rate till 12th June! 1-2 July 2026 University of Sussex, Brighton, UK The 2026 convention of the Society for the Study of Artificial Intelligence and Simulation of Behaviour (AISB) will be held as an in-person only event on 1st and 2nd July 2026, at the beautiful Sussex campus, surrounded by the South Down’s National Park, minutes by train from the vibrant beachside town of Brighton. The day before, on 30 June, we are holding a Day of celebration for the life and work of Prof Margaret Boden. This will include talks on themes related to her work, personal reflections by those who worked with her, and a panel discussion on her legacy. See: https://www.sussex.ac.uk/cogs/seminars/celebrating-margaret-boden Programme & Tracks – see links for detailed schedule of talks in each symposium 1st July Keynote: Anil Seth (Professor of Cognitive and Computational Neuroscience<https://profiles.sussex.ac.uk/p22981-anil-seth>, University of Sussex): The case against conscious AI * Explainability and Transparency in AI (XTAI-2026) (https://xtai-symposium.github.io/<https://xtai-symposium.github.io/>) * AI, Consciousness and Ethics (https://aice-symposium.github.io/ ) * Hype, Promise, and Speculation: AI Bubbles and the Replication Crisis in Computer Science (https://aisb.org.uk/aisb-2026-symposium-hype-promise-and-speculation/<https://aisb.org.uk/aisb-2026-symposium-hype-promise-and-speculation/>) * Ethics of Generative-AI Assisted Authoring (https://sussexhumanitieslab.wordpress.com/2026/01/16/aisb-2026-symposium-1-…) * Varieties of free will and agency (https://freewillandagency.wordpress.com/<https://freewillandagency.wordpress.com/>) * Symposium on AI and Cognitive Sciences in Education (AICSED2026) (https://aicsed.github.io/2026/) 2nd July Keynote: Philip Ball: Science Writer<https://en.wikipedia.org/wiki/Philip_Ball> The Space of Possible Minds * AI, Consciousness and Ethics 2 (https://aice-symposium.github.io/) * Foundations of computation (https://sites.google.com/view/foundations-of-computation) * Is consciousness a story we tell ourselves? Internal language and consciousness after chain of thought reasoning (https://astorywetell.github.io/) * Is there still life in the Turing test? (https://turingtestlives.wordpress.com/<https://turingtestlives.wordpress.com/>) * Values and Preferences in Reasoning (https://www.vprsymposium.com/<https://www.vprsymposium.com/>) There will also be a general track for individuals who would like to present their standalone research. Conference Dinner: The Seahorse (https://seahorsebrighton.co.uk/) * Three course set menu, with 3 drinks included (£56.75), on the beach. Conference registration includes: * Breakfast (coffee & pastries) * Buffet lunch * Afternoon coffee General Information The University of Sussex campus is a modernist masterpiece surrounded by the South Downs National Park, just a few minutes by train from the vibrant and open-minded city of Brighton, with its historical beach, famous club/pub scene, and many quirky shops. Easily reachable from Gatwick (30 mins) and London (1 hour). Founded in the ‘60s with a charter emphasising interdisciplinarity, in the 80’s Professor Margaret Boden established the School of Cognitive and Computing Sciences (COGS), a groundbreaking centre for research and teaching in AI. COGS continues to deliver interdisciplinary education and host cutting-edge research. Registration Registration is available on the convention webpage: https://aisb.org.uk/aisb-convention-2026/. Registration fees Full One day Earlybird Regular Earlybird Regular Attendees – members £250 £280 £190 £220 Attendees – non-members £310 £340 £250 £280 Student members £150 £170 £110 £130 Student non-members £180 £200 £140 £160 Corporate rate £600 £660 £450 £510 (Early bird rate until 12th June) Program Committee General Chair: Bertie Müller (Swansea University) Convention Organiser: Simon Bowes (University of Sussex) Venue University of Sussex Falmer Brighton, BN1 9RH United Kingdom Travel Local Bus Services Brighton & Hove Buses (https://www.buses.co.uk/) has an extensive network of buses around town, to the campus, and onwards to Lewes and other nearby towns. Arriving By Train The Gatwick Express (https://www.gatwickexpress.com/) runs from Brighton to London. Arriving By Car Details of getting to Sussex campus by car, parking, and other transport information can be found here: https://www.sussex.ac.uk/about/directions Accommodation VisitBrighton is the official accommodation booking provider for AISB26. They are delighted to offer specially negotiated accommodation rates for attendees at local hotel accommodation. This website<https://book.passkey.com/go/aisb2026> will be open for bookings until 24 June 2026 but we advise early booking in order to guarantee your preferred hotel. Through this website you can book, modify or cancel your hotel reservations at any time. On the website you can also find links to information on travel, food and entertainment in the city. We look forward to seeing you. Delegates can also benefit from discounts to attractions, restaurants and shops: https://www.visitbrighton.com/special-offers/delegate-deals-o2311<https://www.visitbrighton.com/special-offers/delegate-deals-o2311>

June 11, 2026

PhD position in brain-like machine intelligence and artificial cognition at KTH Royal Institute of Technology, Stockholm

by Pawel Andrzej Herman

Dear Colleagues I am writing to draw your attention to a PhD position in brain-like machine intelligence and artificial cognition (https://www.kth.se/lediga-jobb/938381?l=en) in Computational Cognitive Brain Science lab in the Department of Computational Science and Technology at KTH Royal Institute of Technology, Stockholm. The goal of the project is to develop and simulate large-scale neural network models of the brain’s cognitive function with focus on cortical memory system, and use them to make advances towards brain-like intelligent systems. Special focus is on coupling multiple neural networks to study neural interactions between different cortical regions supporting cognitive function. You are expected to build such large-scale brain plausible network-of-networks models in the continuum between spiking and non-spiking computations, and hence propose novel architectural blueprint for AI agents. Please find more details in the ad: https://www.kth.se/lediga-jobb/938381?l=en. Application deadline: July 10, 2026. Please contact me if you have any questions! Best Pawel Herman ------------------------------------ [cid:image001.jpg@01DCF901.8C47C6F0] Paweł Herman Associate Professor, PhD, Docent KTH Royal Institute of Technology School of Electrical Engineering and Computer Science (EECS) Division of Computational Science and Technology (CST) Lindstedtsvägen 5 114 28 Stockholm, Sweden room 4442 (4th floor, D-building)

June 10, 2026

Open Brain Institute Webinar # 3: From Neuronal Morphologies to Insights using the OBI Virtual Labs

by Darshan Mandge

Dear colleagues, (Apologies for cross-posting.) We are pleased to invite you to the third Open Brain Institute<https://www.openbraininstitute.org> webinar: Topic: From Neuronal Morphologies to Insights using the OBI Virtual Labs Speaker: Natali Barros Zulaica, PhD<https://ch.linkedin.com/in/natali-barros-zulaica-9b1022149/en> Date: Tuesday, June 23, 2026 Time: 1330–1430 hrs (CET) Registration Link: https://events.teams.microsoft.com/event/e504b3ac-c43c-4796-a0d1-6b78779d74… Abstract: Neuronal morphology sits at the heart of understanding how neurons connect, communicate, and compute — yet working with reconstructed morphology data remains surprisingly cumbersome. From exploration and visualization to quality control, standardization, and advanced analysis, researchers routinely face fragmented workflows and scattered tooling. In this webinar, we introduce the morphology-related functionalities of the Open Brain Institute platform and show how they bring these workflows together in one integrated environment. Through hands-on use cases, we will demonstrate how the platform supports efficient dataset exploration, interactive visualization and inspection of reconstructions, collaborative data sharing, automated detection and correction of reconstruction artifacts, and morphometric and topological analyses — including how topological approaches can reveal meaningful morphological differences across species. Whether you are reconstructing neurons, building biologically accurate cell models, or simply trying to make sense of a large morphology dataset, this webinar will show you a more accessible and scalable way to do it. Open to researchers across all areas of neuroscience. We hope you will join us. Best Wishes, Darshan Mandge, PhD Scientist Open Brain Institute Lausanne, Switzerland https://www.linkedin.com/in/darshanmandge/ https://www.openbraininstitute.org/ Linkedin<https://www.linkedin.com/company/openbraininstitute/> - Bluesky<https://bsky.app/profile/openbraininst.bsky.social> - YouTube<https://www.youtube.com/watch?v=Db_Te1HDsro> - X<https://x.com/OpenBrainInst>

June 10, 2026

Call for participation & posters - workshop “Cortex Structure and Function in Monkey, Mouse and Man” (Sep 21-24, 2026)

by von Behren, Christina

Dear all, as we still have a few seats available, we decided to postpone the deadline for pre-registration to June 15. Make use of it… (all details below) Best, Britta ---- Dear all, hereby, we would like to draw your attention to the upcoming workshop “Cortex Structure and Function in Monkey, Mouse and Man”. This workshop aims to bring together researchers from the fields of systems neuroscience, comparative transcriptomics, connectomics, and primate palaeobiology in one place to foster mutual awareness and interdisciplinary discussions as well as identify yet unknown principles in the development, organization and function of the primate brain from computational and experimental points of view. * when: Sep 21-24, 2026 * where: Hanse Wissenschaftskolleg (HWK) Delmenhorst, Germany * pre-registration by Jun 15, 2026 via https://www.uni-bremen.de/hwk-workshop-2026 <https://www.uni-bremen.de/hwk-workshop-2026> workshop outline: Evolution in mammal brains has formed basic building blocks that might superficially look similar, but are organized in different structures and are obviously specialized for distinct computations. Accumulating evidence indicates that, while rodents are close evolutionary relatives to our own primate lineage, fundamental changes on all levels of brain organization occurred at the primate-rodent-split. In addition, subsequent primate evolution appears to be marked by apparently qualitative grade shifts. Recent progress across distinct disciplines provides a springboard to take a fresh perspective on what makes primate brains special. This workshop aims to enhance this comparative cognition perspective by contributions on avians and machines, which, despite having very different “brain” structures, perform functions that are surprisingly similar to those of mammals. Confirmed speakers: Tatjana Engel, Katja Nowick, Marieke Schölvinck, Matthias Kaschube, Henner Koch, Ken Miller, Huib Mansfelder, Wiktor Mlynarski, Fabian Sinz, Andreas Neef, Dan Eric Nilsson, Madineh Sedigh-Sarvestani, Ziad Hafed, Fred Wolf, Daniel Huber, Alessandro Treves, David Dahmen, Neda Shahidi, Jonas Rose, Andreas Kreiter and Udo Ernst. For further information and pre-registration visit https://www.uni-bremen.de/hwk-workshop-2026 <https://www.uni-bremen.de/hwk-workshop-2026> . The workshop is co-funded by the Priority Program SPP 2205 Evolutionary Optimization of Neuronal Processing <https://www.uni-goettingen.de/de/618311.html> and NeuroNex Working Memory <https://www.nxwm.io/> . We are very much looking forward to meeting you in September! **************** Dr. Britta Korkowsky Coordinator Goettingen Campus Institute for Dynamics of Biological Networks (CIDBN) Bernstein Center for Computational Neuroscience Graduate Program in Theoretical and Computational Neuroscience SPP 2205 Evolutionary Optimization of Neuronal Processing University of Goettingen Heinrich-Düker-Weg 12 37073 Göttingen Tel.: +49-551-39-26675

June 9, 2026

Open PhD position - Brain-inspired Machine Learning and Spiking Neural Networks

by Robert Legenstein

The Lab of Robert Legenstein at Graz University of Technology (Austria) https://www.tugraz.at/institute/iml/people/prof-legenstein/ is offering a funded PhD position (Univ. Assistant) in the areas Brain-inspired Machine Learning/Spiking Neural Networks. In paticular, we will investigate brain-inspired models that bridge between sub-symbolic and symbolic artificial intelligence approaches in the context of the Cluster of Excellence Bilateral AI: https://www.bilateral-ai.net A background in Machine Learning, Computer Science, or Mathematics is desirable, as well as evidence for excellent prior performance as a student. For details and application portal, see https://jobs.tugraz.at/en/jobs/e60aac86-0142-4968-a7f1-87662a99f784 -- Dr. Robert Legenstein Univ.-Professor Institute of Machine Learning and Neural Computation Graz University of Technology Inffeldgasse 16b/I, 8010 Graz, Austria http://www.iml.tugraz.at/legi/ WebEx: https://tugraz.webex.com/meet/robert.legenstein ++43/316/873-5824 ----------------------------------

June 8, 2026

📣 Call for Papers: 12th International Artificial Intelligence Symposium (AIS 2026) 🗓 21–24 September 2026 — Riva del Sole Resort & SPA, Tuscany, Italy ⏰ Submission Deadline: June 23, 2026 (AoE)

by ICAS Organizing Committee

*Apologies if you receive multiple copies of this announcement.* *Please kindly forward it to potentially interested authors and attendees. Thank you!* The 12th International Artificial Intelligence Symposium (AIS 2026) will take place from September 21–24, 2026, at the Riva del Sole Resort & SPA in Castiglione della Pescaia (Grosseto), Tuscany, Italy. 🔗 https://ais2026.icas.events 📧 ais(a)icas.cc SATELLITE EVENT 🎓 4th International Meeting on Foundation Models (IMFM 2026) 🔗 https://ais2026.icas.events/imfm2026/ 📌 PAPER SUBMISSION All papers must be submitted through EasyChair: 🔗 https://easychair.org/conferences/?conf=ais20260 ⏰ Paper Submission Deadline: June 23, 2026 (AoE) CALL FOR PAPERS 🔗 https://ais2026.icas.events/call-for-papers/ Please prepare your paper using the Springer Nature Lecture Notes in Computer Science (LNCS) template. Papers must be submitted in PDF format. 📚 TYPES OF SUBMISSIONS When submitting a paper to AIS 2026, authors must select one of the following categories: • Long Paper / Late-Breaking Paper Original, novel, and unpublished work (12–15 pages in Springer LNCS format). Accepted papers will be published in the Springer Nature LNCS conference proceedings. • Short Paper Extended abstracts presenting novel work (6–11 pages in Springer LNCS format). Accepted papers will be published in the Springer Nature LNCS conference proceedings. • Oral Presentation Only No page restrictions; any format accepted. This category is intended, for example, for work already published elsewhere that is relevant to the conference and may stimulate fruitful discussion. Contributions accepted in this category will not be published in the Springer Nature LNCS proceedings. • Poster Presentation Only No page restrictions; any format accepted. This category is intended, for example, for work already published elsewhere that is relevant to the conference and may stimulate fruitful discussion. Contributions accepted in this category will not be published in the Springer Nature LNCS proceedings. KEYNOTE SPEAKERS As in previous editions, AIS 2026 will be co-located with the International Artificial Intelligence Summer School (IAISS 2026), creating a unique and stimulating environment for interdisciplinary exchange. This co-location is designed to strengthen interactions among researchers, practitioners, and students, fostering cross-fertilization of ideas and encouraging new collaborations within the artificial intelligence community. All conference participants will have full access to IAISS 2026 activities, including keynote lectures delivered by leading international experts, thereby enriching the overall scientific experience and providing additional opportunities for learning, discussion, and networking. IAISS 2026 Lecturers • Stefano V. Albrecht — Nanyang Technological University, Singapore • Mikhail Belkin — University of California San Diego, USA • Giuseppe De Giacomo — University of Oxford, UK • Christoph Feichtenhofer — Meta Superintelligence Labs, Menlo Park, CA, USA • Jamie Hayes — Google DeepMind, UK • Sumi Helal — University of Bologna, Italy • Albert Q. Jiang — Mistral AI, Paris, France & University of Cambridge, UK • Marine Le Morvan — INRIA Saclay, France • Bruno Lepri — FBK, Italy • George Paliouras — National Center for Scientific Research “Demokritos”, Athens, Greece • Panos Pardalos — University of Florida, USA More lecturers to be announced. PAST KEYNOTE SPEAKERS 🔗 https://ais2026.icas.events/past-keynote-speakers/ AIS Leonardo Fibonacci BEST PAPER AWARD 🔗 https://ais2026.icas.events/best-paper-award/ PROGRAM COMMITTEE 🔗 https://ais2026.icas.events/program-committee/ VENUE 🔗 https://ais2026.icas.events/venue/ AIS 2026 will take place at the Riva del Sole Resort & SPA, Tuscany, Italy. AIS 2026 is a residential conference. All participants (invited speakers, authors, organizers, chairs, and attendees) are required to stay at the Riva del Sole Resort & SPA. No exceptions will be permitted. Riva del Sole Resort & SPA 📍 Località Riva del Sole, 58043 Castiglione della Pescaia (Grosseto), Tuscany, Italy 📞 +39-0564-928111 📠 +39-0564-935607 📧 booking.events(a)rivadelsole.it 🌐 www.rivadelsole.it/en ACTIVITIES 🔗 https://ais2026.icas.events/activities/ Submit your research work today: 🔗 https://easychair.org/conferences/?conf=ais20260 We look forward to welcoming you to beautiful Tuscany in September! Best regards, AIS 2026 Organizing Committee 🔗 https://ais2026.icas.events 📧 ais(a)icas.cc Past Editions 🔗 https://ais2026.icas.events/past-editions/ Facebook: https://www.facebook.com/groups/2236577489686309/ X / Twitter: https://twitter.com/TaoSciences LinkedIn: https://www.linkedin.com/groups/19150026/ AIS 2026 Poster 🔗 https://ais2026.icas.events/wp-content/uploads/sites/37/2025/12/AIS-2026-po… Please note that this announcement is only a Call for Papers. For complete and continuously updated information, please refer to the official conference website: https://ais2026.icas.events *Apologies again for multiple copies. Please forward this announcement to anyone who may be interested. Thank you!*

June 8, 2026

World wide VVTNS series (6th season): June 10 2026 | Learning to Compose: Geometric Reorganization of Prefrontal Dynamics Enables Flexible Multi-Task Control | Alexandre Leon Mahrach IDIBAPS, Barcelona

by David Hansel

[image: VVTNS.png] https://www.wwtns.online <https://streaklinks.com/A9c7PbbpKY7PxB6PaAJWGD3-/https%3A%2F%2Fwww.wwtns.on…> - on twitter: wwtns@TheoreticalWide You are cordially invited to the lecture Alexandre Leon Mahrach IDIBAPS, Barcelona on the topic of Learning to Compose: Geometric Reorganization of Prefrontal Dynamics Enables Flexible Multi-Task Control The lecture will be held on Zoom on June 10, 2026 at *11:00 am ET * To receive the link: https://www.wwtns.online/register-page > > > *Abstract: *Complex behavior requires neural circuits to compose elementary operations—maintaining memories, evaluating sensory cues, suppressing premature actions—into context-appropriate programs. How prefrontal dynamics reorganize to support such composition when task demands compete within a shared neural population remains unclear. Here, we developed a dual-task paradigm in mice that combined a delayed paired-association (DPA) task with an olfactory Go/No-Go (GNG) discrimination embedded in the delay period. Mice learned the dual task rapidly, with early errors dominated by false alarms on unpaired DPA trials. Interference was asymmetric: Go cues disrupted performance more than No-Go cues, pinpointing premature action rather than memory failure as the central learning bottleneck. Population calcium imaging from medial prefrontal cortex (mPFC) showed that sample identity, choice tendency, and test identity occupied near-orthogonal subspaces of a shared low-dimensional manifold. As training progressed, sample representations remained stable while delay-period activity shifted away from the action-associated region. To probe the underlying circuit mechanisms, we trained low-rank recurrent neural networks on the same paradigm. Networks developed a circular manifold on which memories were stored as attractors at distinct angular positions, and test stimuli acted as compositional rotation operators, routing stored memories to appropriate actions. Dual-task training relocated mnemonic attractors to a position that a reduced geometric model identified as Pareto-optimal—revealing a fundamental tradeoff in which optimizing one task necessarily impairs the other. Consistently, optogenetic inhibition of ACC→mPFC projections during the delay displaced attractor geometry and selectively biased DPA versus GNG accuracy, matching the reduced model's prediction. Together, our results reveal how prefrontal circuits dynamically reshape attractor geometry through learning-dependent attractor fine-tuning, providing a mechanistic framework for how cortex resolves competing cognitive demands. *About VVTNS : Launched as the World Wide Theoretical Neuroscience Seminar (WWTNS) in November 2020 and renamed in homage to Carl van Vreeswijk in Memoriam (April 20, 2022), Speakers have the occasion to talk about theoretical aspects of their work which cannot be discussed in a setting where the majority of the audience consists of experimentalists. The seminars, **held on Wednesdays at 11 am ET,** are 45-50 min long followed by a discussion. The talks are recorded with authorization of the speaker and are available to everybody on our YouTube channel.* ᐧ ᐧ

June 8, 2026