Şahcan Özdemir
sahcanozdemir.github.io | PhD candidate | cognitive neuroscience | working memory | attention| action planning
- Reposted by Şahcan Özdemir🚨 Job alert🚨 My former lab in Germany led by Daniel Schneider is recruiting a postdoc. Daniel’s research sits at the intersection of memory and attention, and the ideal candidate will have expertise in EEG and/or fMRI. 👉Job ad in English: www.dropbox.com/scl/fi/br2vg... 1/n
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[This post could not be retrieved] - Reposted by Şahcan Özdemir🎉 My first first-author paper was just accepted in JEP:HPP! We asked what “active” vs “passive” WM states do - do they protect against interference? Across 4 behavioural experiments we find no reliable protection. Updated preprint here: doi.org/10.1101/2024.02.05.578913 @elkanakyurek.bsky.social
- Reposted by Şahcan ÖzdemirHow does prior knowledge affect the way we experience the world? In our new paper, we show that prior knowledge can both increase and decrease how often experience is segmented into events. link.springer.com/article/10.3...
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- Just tell me a thriller that exceeds ‘two scientists travelling to the Austrian Alps to meet a cow who uses a stick to scratch her back'!
- Our new paper (with @biotay.bsky.social) is out and on the cover story of @currentbiology.bsky.social !!!! Veronika, a Carinthian mountain cow flexibly uses a “multi-purpose tool” to scratch herself. A video and more information will follow in the comments. www.cell.com/current-biol...
- Reposted by Şahcan ÖzdemirIt won't actually exist for another month or so, but because it now 'exists' on amazon, I'll humbly observe that, after working through this book, your student/trainee would be able to read and understand all but two or three papers in this week's J. Neurosci. Check it out:
- Reposted by Şahcan Özdemir🚨 #Preprint alert 🚨 A multilab study led by Claire Vanbuckave investigated whether the strength of pupil responses to imagined brightness/ darkness reflect differences in vividness of mental imagery. We found … 👇 1/3 🧵 #psychology #aphantasia #pupillometry #mentalimagery doi.org/10.64898/202...
- Reposted by Şahcan ÖzdemirWith some trepidation, I'm putting this out into the world: gershmanlab.com/textbook.html It's a textbook called Computational Foundations of Cognitive Neuroscience, which I wrote for my class. My hope is that this will be a living document, continuously improved as I get feedback.
- Reposted by Şahcan ÖzdemirI think this is a key point for our field to reckon with – that the underlying cognitive representation can vary across the many tasks and conditions that we use to probe working memory. I think that doesn't mean we give up our search – we do have to rethink the questions we are asking though!
- Reposted by Şahcan ÖzdemirWe recently published a theoretical review about how compositional and generative mechanisms in working memory provide a flexible engine for creative perception and imagery. Pre-print: osf.io/preprints/ps... Paper: www.sciencedirect.com/science/arti...
- Reposted by Şahcan ÖzdemirTalking today about whether attention can modulate retinal activity, come join! 👁️ #nvp25
- This afternoon at #nvp2025, an entire session on cognitive #pupillometry 👁️ with talks by @anavili.bsky.social , @cstrauch.bsky.social and others. See you at 👉 12:00! #psychology
- Reposted by Şahcan ÖzdemirOur new preprint is out! Using a continuous-report paradigm, we show that divided attention reliably disrupts long-term memory retrieval by reducing accessibility—not precision. Two experiments + mixture modeling + TCC. Link: osf.io/preprints/ps...
- Reposted by Şahcan ÖzdemirDo you have an open working memory dataset and want it to be findable and reused? You can now add it to the Open WM Data Hub: williamngiam.github.io/OpenWMData! The collection of datasets tagged with useful metadata is steadily growing thanks to a small team of volunteers!
- I am really thrilled to be a part of this study! Don't miss the preprint!! 🎉
- 🚀 New preprint alert 🚀 How easily can working memory create interference in long-term memories? Our new preprint, Interference Across Memory Systems: Disrupting Long-Term Memories Through Working Memory examines this osf.io/preprints/ps... w/ @sahcan.bsky.social Anna Lena Mantei, Daniel Schneider
- Reposted by Şahcan ÖzdemirNow out in #ScienceAdvances: @baiweiliu.bsky.social and I ask how internal (goal) and external (sensory) selection are coordinated during visual search. The key insight: internal and external selection are not inherently serial, but may develop in parallel in the human brain: doi.org/10.1126/scia...
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- Reposted by Şahcan ÖzdemirAny early-career researchers in #workingmemory wanting to contribute to an #openscience initiative? I'm looking for help building up a data hub resource for the field. Volunteers can expect to devote a few hours, and might pick up insights into handling research data and how to use Github.
- Reposted by Şahcan ÖzdemirNew preprint! Working memory contents can be decoded from alpha band power. But does working memory maintenance really depend on these oscillations? We say no, because we found that alpha power decoding only works for prioritized items, not deprioritized ones. 1/3 www.biorxiv.org/content/10.1...
- Reposted by Şahcan ÖzdemirCDS Asst. Prof. @neurograce.bsky.social has launched a YouTube channel, “5 Minute Papers on AI for the Planet,” translating climate-AI research into short video explainers, inspired by her course at CDS, “Machine Learning for Climate Change.” nyudatascience.medium.com/cds-grace-li...
- Reposted by Şahcan ÖzdemirThe final part of my PhD work is now published in JEP:LMC 🤩 Special thanks to my wonderful PhD supervisors @evievergauwe.bsky.social and @nlangerock.bsky.social 🤗 psycnet.apa.org/fulltext/202...
- Delighted to share that the last part of my PhD work is now available as a preprint 🥳🎉 osf.io/preprints/ps... This work was done in collaboration with my amazing PhD supervisors @evievergauwe.bsky.social and @nlangerock.bsky.social 🌟 #workingmemory
- Reposted by Şahcan ÖzdemirThe human-neuroscience N2pc marker of covert and internal attention co-occurs with spatial biases in microsaccades, 200-300 ms after prompted to shift attention. (How) are these empirical phenomena related? Check it out in the latest work led by @baiweiliu.bsky.social: doi.org/10.1371/jour...
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- Reposted by Şahcan ÖzdemirWe’re looking for a postdoc to join our Max Planck group in Germany some time in 2026. If you have computational and/or neuroimaging expertise, and are interested in questions intersecting perception and cognition, please reach out! I’ll also be happy to chat at the #Bernsteinconference this week.
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- On the 23rd of September we will welcome @tbchristophel.bsky.social for our IfADo colloquium at 16:00 (CET). The event is hybrid and open online. You can reach me out for Zoom invitation, or use the following link to sign up for both the link and our email list. www.ifado.de/en/press/eve...
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- This is the line-up 👇We‘ll cover recent result from #EEGManyLabs & #EEGManyPipelines as well as ongoing projects from @scone-neuro.bsky.social and @igor-dgps.bsky.social ! Join us tomorrow at #ICON2025 - 13:45 in room Boavista!
- 1/4 I’m really excited to share that my first PhD manuscript has been accepted for publication in the Journal of Neuroscience 🎉! Until it becomes available, don’t forget to check out our updated preprint (with some additional insights) #JNeurosci
- Preprint Alert!! In our latest study, we describe a novel relationship between action planning and working memory. Our results show that action-item associations affect how working memory maintains the fidelity of sensory information during a task. Check it out: www.biorxiv.org/content/10.1...
- 2/4 Our main results provide novel evidence for selective WM gating that depends on motor control. We show that when the main task and the interfering task share motor components, visual WM interacts more strongly with distracting perceptual information.
- Reposted by Şahcan Özdemirwww.biorxiv.org/content/10.1... Representational Geometries of Perception and Working Memory: A Pilot Study Tomoya Nakamura's first fMRI project ... in which we hereby release a preprint as a way of pre-registration 🧠📈
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- Reposted by Şahcan Özdemir🚨 New preprint: Invisible neural frequency tagging (RIFT) for the underfunded researcher: 👉 www.biorxiv.org/cgi/content/... RIFT uses high-frequency flicker to probe attention in M/EEG with minimal stimulus visibility and little distraction. Until now, it required a costly high-speed projector.
- Reposted by Şahcan ÖzdemirAttending #ECVP next week? Please seek me out if you're potentially interested in a postdoc: Thursday – 08-28-2025 - 08:30 am Out of sight, but not out of mind: How the human brain represents images that are not directly seen Chair, Rosanne Rademaker
- Reposted by Şahcan ÖzdemirHi everyone, I have recently joint the @uni-magdeburg.de and the Leibniz Institute for Neurobiology #teamLIN. The LIN is hosting the XV #learning & #memory Conference (28.09-02.10). Looking at #memory & 😴 sleep 🧠 #hippocampus 👂 auditory #learning ... Information & Registration: lnkd.in/d-Q6J8JV
- Reposted by Şahcan ÖzdemirNew preprint alert! 🤩 Together with Klaus Oberauer, I wrote a review article on how focused attention in #workingmemory affects long-term memory formation. osf.io/preprints/os...
- Reposted by Şahcan Özdemir🚨 PostDoc Opening 🚨 The lab of Klaus Oberauer is looking for a new postdoc, starting end of this/beginning next year. Research focus is #cognition, #workingmemory, #methods and #computationalmodeling or anything in that direction. I cannot highlight ENOUGH how great it is to work in this lab 🥰🤓
- Reposted by Şahcan ÖzdemirNow out in JEP:G! We (@fridaprintzlau.bsky.social & @keisukefukuda.bsky.social ) resolve inconsistent attentional protection in WM by addressing discrepancies in cueing. Upshot: Attention changes how perception biases memory, but *not* how memory biases perception! doi.org/10.1037/xge0...
- Reposted by Şahcan Özdemir🚨PhD student position in #cognitive_psychology and #neuroscience, on a project directed by André Knops and in collaboration with the Dugué Lab! @upcite.bsky.social | @cnrs.fr Funded by the @agencerecherche.bsky.social (Agence nationale de la recherche) www.linkedin.com/jobs/view/42...
- Reposted by Şahcan ÖzdemirLooking for a summer read? Look no further! ☀️ Our most recent paper with Sage Boettcher, @freekvanede.bsky.social and @kianobre.bsky.social is out @plosbiology.org! 🪩 Sensory and motor working-memory contents are both prioritised dynamically, but their prioritisation can be temporally decoupled 🧠
- Reposted by Şahcan ÖzdemirOnly a small % of people engage in toxic activity online, but they’re responsible for a disproportionate share of hostile or misleading content on nearly every platform Because super-users are so active, they dominate our collective impression of the internet www.theguardian.com/books/2025/j...
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- Reposted by Şahcan ÖzdemirCurious about the visual human brain, a vibrant and collaborative lab, and pursuing a PhD in the heart of Europe? My lab is recruiting for a 3-year PhD position. More details: www.rademakerlab.com/job-add
- Reposted by Şahcan ÖzdemirPostdoc position open in our #workingmemory lab! See here for more info: www.unige.ch/fapse/womcog...
- Reposted by Şahcan ÖzdemirOur paper on the neural basis of serial dependence is finally published! In @elife.bsky.social: A direct neural signature of serial dependence in working memory doi.org/10.7554/eLif... Oh, and check out the commentary by Yang&Kiyonaga too! elifesciences.org/articles/101...
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- Reposted by Şahcan ÖzdemirNew Preprint with @edamizrak.bsky.social! Performance in immediate memory tasks reflects a flexible mixture of contributions of #workingmemory and LTM. Distraction disrupts WM, while PI impairs retrieval from LTM; when both are in play, performance depends on the relative reliability of each system
- Interactions of Working and Long-term Memory - Evidence from Proactive Interference in the Brown-Peterson Task: osf.io/zemkw
- #VSS2025 I’ll present our preprint on sensorimotor processes in working memory gating tomorrow! Catch me in Pavilion during the afternoon poster session! Besides, would love to chat about more on wm as a function of interacting with the environment - either in the session or during party times 😄🎉
- Preprint Alert!! In our latest study, we describe a novel relationship between action planning and working memory. Our results show that action-item associations affect how working memory maintains the fidelity of sensory information during a task. Check it out: www.biorxiv.org/content/10.1...
- Reposted by Şahcan ÖzdemirDear #VSS2025 attendees! Our lab will be presenting 5 posters over the next two days. We’re excited to share our work: Come visit us!
- Reposted by Şahcan ÖzdemirAbstract submission is now open for WMS2025 (Deadline: May 31st)! Working memory ECRs, we look forward to receiving your submissions!!! wmsymposium.org
- Reposted by Şahcan ÖzdemirHappy to share that this work is now (finally) published in JEP:HPP 🕺 psycnet.apa.org/record/2025-...
- As my debut on 🔹☁️, I’m happy to share our preprint (with Marcel Niklaus & Klaus Oberauer) on the distractor susceptibility of information in working memory: psyarxiv.com/hn9wp #workingmemory
- Reposted by Şahcan ÖzdemirRegistration for #ESCOP2025 in Sheffield, UK, opens today at 10 am BST! 📣 The first 50 ECRs (PhD students & postdocs) registering for either of the two 2-day workshops can secure 🤩free accommodation🤩 for the entire ESCOP programme! @escop.bsky.social @sheffielduni.bsky.social @vmloaiza1.bsky.social
- Reposted by Şahcan ÖzdemirAre short-term memories just noisier versions of what we perceive? Are they fundamentally different? We (Chaipat Chunharas, @mjwolff.bsky.social, @meikehettwer.bsky.social and myself) delved into this in a paper out now in #elife: elifesciences.org/reviewed-pre.... For a quick summary, a 🧵 below:
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