Katharina Duecker
comp neuro postdoc the Carney Insitute for Brain Science, Brown University | HNN developer | passionate about oscillatory dynamics and their role in neuronal computation 🧠
sites.brown.edu/stephanie-r-jones-lab/
- Reposted by Katharina Dueckermain goal for this year: find a new job! 🙂 looking for a role with fun & complex technical challenges & within a great community. my main expertise is in signal processing/EEG/MEG, but topic-wise I am quite flexible. science/industry both great! starting mid-year. nschawor.github.io/cv
- Reposted by Katharina Duecker🚨 New preprint! Why do some insights from spikes translate to field potentials while others don't? In this paper we compare visual memory representations in spikes and LFPs to propose a general framework that answers this question. www.biorxiv.org/content/10.6... 🧵 (1/10) 🧠🟦 🧠💻
- Reposted by Katharina DueckerPassionate about women's mental health? Interested in brain stimulation? Excited by cutting edge neurotech? Come do a PhD with me! www.findaphd.com/phds/project... (thread)
- Reposted by Katharina DueckerI have so many issues with this podcast with @earlkmiller.bsky.social . I think that this podcast nicely shows why I have trouble with such approaches. Lets go through some of the claims.
- Giant Shoulders podcast: Meet the MIT Neuroscientist Proving Brainwaves are the Secret to Consciousness. youtu.be/7OFb-NG3jIw #neuroscience
- If you are at #SfN2025, come see me at my poster LBP022.7 on Sun 8-12 to talk about the next generation HNN that we have been working on over the past year 🧠🧪also check out our new updated website & textbook built by @asoplata.bsky.social & Dylan Daniels @hnnsolver.bsky.social
- @katduecker.bsky.social will present the next-generation HNN with cellular dynamics tuned to human cells & dendritic calcium spikes in the L5 and L2/3 pyramidal cells. Our simulations show that calcium spikes have dominating effects on human E/MEG signals! Sun, Nov 16, 2025, 8 AM – 12 PM, LBP022.07
- Reposted by Katharina DueckerThe Jones comp neuro lab is at #SfN25! Come check out our talks and posters to learn about our latest & greatest Science with HNN! All poster presentation times & locations can be found at jonescompneurolab.github.io/textbook/res...
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View full threadReposted by Katharina DueckerJoyce Gao will present the application of HNN to simulate single pulse TMS evoked potentials. We show generative predictions for double pulse TMS and pharmacological modulations. Wed, Nov 19, 2025, 1 PM - 5 PM, PSTR478.08
- Reposted by Katharina DueckerExcited to share our preprint on variability in patch leaving decisions! Check out the 🧵 below
- 🧪Preprint! How foragers depart from optimal models can tell us a lot about how they compute their decisions. A strong but underexplored departure is that foragers widely vary when they leave identical patches. A 🧵 doi.org/10.1101/2025... With @emmavscholey.bsky.social @brainapps.bsky.social
- Reposted by Katharina DueckerDelighted to share our new preprint! We show that rhythmic light stimulation produces multiplexed oscillatory responses at fundamental and harmonic frequencies that are spatially, temporally, and functionally distinct. Read on for the details [1/6] www.biorxiv.org/content/10.1... #neuroskyence
- Reposted by Katharina Duecker
[This post could not be retrieved] - Reposted by Katharina DueckerEver wonder how you read so fast? Your brain gets a head start—processing the next word before your eyes move. Our MEG + eye tracking study out in Nature Communications study from @thechbh.bsky.social reveals orthographic & semantic previews predicting reading speed www.nature.com/articles/s41...
- At long last, the pre-print to our MEG study + RIFT study and the final paper from my Ph.D with @olejensen.bsky.social We show that strong pre-search alpha oscillations are associated with faster responses in visual search www.biorxiv.org/content/10.1... @thechbh.bsky.social #neuroskyence
- We analyzed data from our previous publication, where we showed that the RIFT signal is modulated in line with a priority map, to boost targets and suppress distractors. rdcu.be/eDbHY Here, we fit a GLM-spectrum to the pre-search interval, accounting for confounds of alpha and RT with time-on-task.
- We show that alpha power negatively correlates with RT - higher alpha, faster responses. There was no difference in hit rate between high and low alpha, so participants were indeed better at the task!
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View full threadAnd a huge thank you to my other co-authors: Kim Shapiro, Simon Hanslmayr, Jeremy Wolfe, Yali Pan, Aleksandra Pastuszak and of course @olejensen.bsky.social for bearing with me over the past many years!
- Reposted by Katharina DueckerHellohello again! Tomorrow at 5:15pm I’m giving a short talk on our latest MEG study about our very well-loved oscillating perceptual predictions @meguki2025.bsky.social. Come by and talk brains! There are amazing talks and very cool science happening all around! MEGUKI 2025👌
- Finally out in @commsbio.nature.com ! Using MEG and Rapid Invisible Frequency Tagging (RIFT) in a classic visual search paradigm we show that neuronal excitability in V1 is modulated in line with a priority-map-based mechanism to boost targets and suppress distractors!
- Guided visual search affects #neuronal excitability in the primary visual cortex, enhancing targets and suppressing distractors. www.nature.com/articles/s42... @katduecker.bsky.social @olejensen.bsky.social @benjamingriffiths.bsky.social
- Huge thank you to my co-authors Kim Shapiro, Simon Hanslmayr, Jeremy Wolfe, Yali Pan, @benjamingriffiths.bsky.social and the best PhD supervisor @olejensen.bsky.social for bearing with me over the past many years. There will be a part 2 so stay tuned :)
- Reposted by Katharina DueckerIn the physical world, almost all information is transmitted through traveling waves -- why should it be any different in your neural network? Super excited to share recent work with the brilliant @mozesjacobs.bsky.social: "Traveling Waves Integrate Spatial Information Through Time" 1/14
- Most amazing piece of science communication by one talented @kermieeart.bsky.social :)
- Want a high-level overview of how HNN works? Check out this short comic by our lab manager Joyce (@kermieeart.bsky.social)! tinyurl.com/27xrksez #compneuro #sciart #comics
- Reposted by Katharina DueckerWe invite you to join us at our 2025 Spring Online Human Neocortical Neurosolver (HNN) Workshop! This workshop will be on Wednesday, April 9th from 9 AM - 3 PM (ET). Find out more and sign up 👉 tinyurl.com/hnn-workshop.... Seats are limited! #compneuro
- Reposted by Katharina DueckerI thank taxpayers for supporting my lab's work. My group has helped map how brains transform "seeing" into "remembering". We've been working to transform what we've learned into a new treatment for individuals with memory impairment (by stimulating the vagus nerve). www.nicolecrust.com/memory
- Reposted by Katharina DueckerLess than a week to apply for the Summer Workshop on the Dynamic Brain! 🐋🧠🌊 Apply by Feb. 1 to join us for this intensive, project-based residential course in the beautiful San Juan Islands. 🔗 alleninstitute.org/events/summe... 🧠📈
- Reposted by Katharina DueckerThe Human Neocortical Neurosolver is on Bluesky! HNN is a user-friendly computational tool to develop & test hypotheses about the neural circuits underlying EEG/MEG signals. Our aim is to make comp neuro accessible to a broad community. Follow for HNN science, workshops & development! 🧠 👩🔬 #compneuro
- Reposted by Katharina DueckerOur review on the theoretical status of oscillations and field potentials is out! What are their effects, and what can electrophysiology signals reveal about how the brain works? w/ @dlevenstein.bsky.social @prokraustinator.bsky.social Bradley Voytek @rdgao.bsky.social www.cell.com/trends/cogni...
- Reposted by Katharina DueckerThe role of alpha oscillations in resisting distraction www.cell.com/trends/cogni... #neuroscience
- statistically significant :) @camelphat.bsky.social
- Reposted by Katharina Dueckerapply to a transition grant that focuses on my lab research plan, would it help to have my research directions to be framed with both short-term (first 3-5 years) version of the experiments, next to a more long-term (years 5-10) vision?
- Reposted by Katharina Duecker
- Reposted by Katharina DueckerPlease share, would love to add more people to this! #neuroscience #neuroskyence #compneuro go.bsky.app/B6LshePat://did:plc:qi2tfbcirbrnjlrdghjqgb7l/app.bsky.graph.starterpack/3lbt3fp5bsq22
- Reposted by Katharina Dueckerany tips for when aims are deemed too ambitious for K99? making the case for learning rna sequencing (no experience beyond analysis) and combining it with prior expertise (electrophysiology and behavior), what are considered the stopgaps? thinking of cutting behavior since that can take forever
- Reposted by Katharina DueckerJust to offer a different PoV: this would benefit progress in the same direction, but IMO we need new math for life/natural intelligence to get us out of copying ML into neuroAI, e.g. claiming an engineering tool as THE way the brain works etc. Breakthrough Theoretical advances need broader search.
- Reposted by Katharina DueckerLoving the starter packs and would love to put one together full of #compneuro trainees on here! Please share and comment if you want to be added or tag your trainees and I’ll put one together😊 #neuroscience #neuroskyence
- Reposted by Katharina DueckerDifferential neural mechanisms underlie cortical gating of visual spatial attention mediated by alpha-band oscillations www.pnas.org/doi/10.1073/... by @olejensen.bsky.social et al. via @peterkok.bsky.social; earlier non-paywalled preprint at www.biorxiv.org/content/10.1... #neuroscience
- More months ago than I'm willing to admit, I shared results from our MEG study suggesting that priority maps in feature-guided search are modulated by alpha. I'm happy to finally share part 1 of the corrected follow-up, in which we control for confounds by time-on-task:
- Using MEG and RIFT, we show that early visual cortex modulates its activity in line with a priority-map-based mechanism during feature-guided visual search. biorxiv.org/content/10.1... with Kim Shapiro, Simon Hanslmayr, Yali Pan, Jeremy Wolfe, Ben Griffiths & @olejensen.bsky.social
- Our results are in line with the reverse hierarchy theory proposing that top-down control progresses back to early visual cortex when a higher SNR is needed cell.com/trends/cogni... However, there is no evidence that known distractors are suppressed in anticipation.
- Stay tuned for part 2 where we test the hypothesis that alpha supports the search through inhibition while accounting for time-on-task.
- Our paper on multiplexing by oscillations in an ANN is now out in its peer-reviewed glory in PLOS Comp Bio with Marco Idiart, Marcel van Gerven & @olejensen.bsky.social Hugely improved thanks to three very thorough reviewers! Let us know what you think! journals.plos.org/ploscompbiol...
- We integrated refractory dynamics and pulses of inhibition into the hidden layers of an ANN & show that oscillations enable multiplexing of simultaneous stimuli. Proof-of-concept paper with Marco Idiart, Marcel van Gerven & @olejensen.bsky.social www.biorxiv.org/content/10.1...
- The report of a ubiquitous spectrolaminar motif in the human and primate brain published in Nat Neurosci earlier this year made huge waves (pun intended). We here outline some concerns and considerations. Led by one rigorous but bsky-less Chase Mackey! www.biorxiv.org/content/10.1...
- Fantastic work and a beautiful paper by the brilliant @dotproduct.bsky.social, showing that alpha oscillations carry predictions about visual stimuli!
- Super excited to share the very first preprint from my PhD: Pre-stimulus alpha oscillations encode stimulus-specific visual predictions. [1/8] #neuroskyence #PsychSciSky #compneurosky biorxiv.org/cgi/content/...
- Very happy to share that on my last day of being 30, I've finally completed my PhD! 🫠 a huge thank you to @jgross.bsky.social, Johanna Zumer & Ali Mazaheri for making the viva such an enjoyable experience & to @olejensen.bsky.social for being the supervisor every PhD student deserves.🎓👩🏫
- We integrated refractory dynamics and pulses of inhibition into the hidden layers of an ANN & show that oscillations enable multiplexing of simultaneous stimuli. Proof-of-concept paper with Marco Idiart, Marcel van Gerven & @olejensen.bsky.social www.biorxiv.org/content/10.1...
- The notion that object recognition underlies serial processes goes back to early ideas by Broadbent (1953). The brain must find a way to segregate representations of simultaneous stimuli. One idea is that inhibitory oscillations organise these representations as a phase code.
- We first trained a 2-layer NN to classify 3 letters presented in 4 quadrants. As expected, when presented with two stimuli simultaneously, the network produces a mixed representation of both stimuli. This indicates a computational bottleneck.
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View full threadA big thank you to my co-authors Marco Idiart and Marcel van Gerven for all their support on this project, and of course to @olejensen.bsky.social for trusting me to take on a project far outside my comfort zone. Excited to hear what the community thinks, please reach out for questions & feedback!
- Reposted by Katharina DueckerAn updated version of GLM-Spectrum - now shorter and better thanks to three reviewers! very grateful for their input. In addition to clean-ups & improvements, a notable new addition is spectra of effect sizes in multivariate models. www.biorxiv.org/content/10.1... #neuroscience #neuroimaging
- Reposted by Katharina DueckerHello all, my new review paper on willed attention is out! In this paper, we aim to review the fields of voluntary attention and self-initiated motor actions to place 'willed attention' in context! #neuroskyence #PsychSciSky #EEG #neuroimaging
- Go Team! 🧠
