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Christoph Strauch

@cstrauch.bsky.social
610 followers 544 following 166 posts

Assistant professor @utrechtuniversity.bsky.social studying spatial attention, eye-movements, pupillometry, and more. Co-PI @attentionlab.bsky.social

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Reposted by Christoph Strauch
Hadas Weiss @hadas.bsky.social · 12/09/2026
me when people talk about the crisis in academia
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Heida Maria Sigurdardottir @heidasigurdar.bsky.social · 26/08/2026
Please talk to me or @arnig.bsky.social at #ecvp2026 if you know of an interested potential Ph.D. student -- or are that interested student ;) #ECVP #visionscience #neuroskyence #psychscisky #psychology #imagery #visualimagery #phd #cogsci
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Heleen Slagter @haslagter.bsky.social · 19/08/2026
PhD position (4 years, paid) on an NWO-funded project on the Role of Foveal Processing in Spatial Attention at Vrije Universiteit Amsterdam, the Netherlands, supervised by Dr. Mieke Donk (main PI) and me! For more information: workingat.vu.nl/vacancies/ph...
workingat.vu.nl
Vacancy — PhD position (4 years) on the Role of Foveal Processing in Spatial Attention
Are you interested in understanding how attention shapes what we see? Would you like to combine behavioural experiments, psychophysics, and eye tracking to uncover how the brain selects and prioritise...
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Christoph Strauch @cstrauch.bsky.social · 04/08/2026
Now final in @elife.bsky.social: #Synesthetes really do 'see' when reporting colors while reading (typeface gray) numbers: pupils change according to the perceived colors' brightness - if a synesthete sees a bright yellow, the pupils become smaller. elifesciences.org/articles/110...
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Surya Gayet @suryagayet.bsky.social · 07/07/2026
Wooow! @danwang7.bsky.social just won the Early Career Excellence Award at the APCV/EPC 2026 meeting! As her supervisor in the past 3 yrs, I have seen so much professional & personal growth. It makes me incredibly proud that this was also seen by an independent jury on the other side of the planet.
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Brad Postle @bradpostle.bsky.social · 12/06/2026
Postdoc position available at postlab.psych.wisc.edu. Pls send cv to postle@wisc.edu
postlab.psych.wisc.edu
PO-STL-AB
Our interests in human memory and cognition encompass the cognitive and neural basis of working memory, attention, control, and consciousness.News  Madison Symposium on Memory & Control. On 30 May 202...
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Damian Koevoet @dkoevoet.bsky.social · 10/06/2026
I became a dr. last week! Thanks to everyone who made it an amazing day - I had a blast.
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Jonas Obleser @jonasobleser.bsky.social · 02/06/2026
We have two job openings in my lab currently — for a postdoc (100% FTE some teaching four years) and a postdoc/phd student (75% FTE no teaching three years). Check them out at www.uni-luebeck.de/aktuelles/be...
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Christoph Strauch @cstrauch.bsky.social · 01/06/2026
Have you thought of using unchained pupillometry to infer effort/arousal with _uncontrolled_ visual stimulation? Sounds crazy? @yuqingc.bsky.social shows that convolutional modeling of pupil responses with gaze-contingent luminance changes finally allows just that! www.biorxiv.org/content/10.6...
biorxiv.org
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Ryszard Auksztulewicz @auksz.bsky.social · 27/05/2026
ANOTHER assistant professorship available in my department. Focus on contemporary neuroimaging applications to neuropsychology and psychopharmacology. #NeuroJobs vacancies.maastrichtuniversity.nl/job/Maastric...
vacancies.maastrichtuniversity.nl
Assistant Professor Neuroimaging
Assistant Professor Neuroimaging
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Christoph Strauch @cstrauch.bsky.social · 27/05/2026
New preprint (doi.org/10.64898/202...) shows that where you look next is an economic decision. Saccades trade off effort-costs (measured via pupil) against monetary rewards. 1) By default, participants have strong saccade direction preferences (e.g., cardinal over diagonal, up over down) (1/4)
Left: participants prefer cardinals and upward directions without receiving rewards. Center: after titrating rewards throughout the experiment, downward and cardinal directions provide less reward, i.e., participants are willing to saccade there even though they gain little in comparison. Right: This titration of rewards offsets the internal saccade costs, leading to uniform preference across directions
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Anil Seth @anilseth.bsky.social · 26/05/2026
Fully funded PhD position @sussex.ac.uk, at the Sussex Centre for Consciousness Science. Stipend plus fees for 3.5 years, kindly supported by the School of Engineering & informatics. Apply by May 31st. More details here: www.sussex.ac.uk/study/fees-f...
sussex.ac.uk
The Sussex Centre for Consciousness Science (SCCS) 2026 Studentship : University of Sussex
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AttentionLab Utrecht University @attentionlab.bsky.social · 19/05/2026
Last piece of @ajhoogerbrugge.bsky.social PhD is finally out in @psychscience.bsky.social. Alex work very nicely shows that concurrent search is possible (people just prefer sequential search usually). What's more, people flexibly pick from these strategies
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Alex J. Hoogerbrugge @ajhoogerbrugge.bsky.social · 19/05/2026
Investigations into whether we can search for multiple targets in a simultaneous fashion have led to mixed findings. In this new PsychScience article, we report that people CAN search concurrently, but don't always DO so... 🧵 journals.sagepub.com/doi/10.1177/...
Results figure, showing that, when instructed, participants can either search sequentially or concurrently for multiple items
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Karin Roelofs @epanlab.bsky.social · 08/05/2026
PhD Position: Computational Affective Neuroscience and Ultrasonic Neuromodulation at @dondersinst.bsky.social >Passionate about ultrasonic modulation? Come and join us! funded by @erc.europa.eu HEART2ADAPT @epanlab.bsky.social in coll. with @lennartverhagen.bsky.social www.ru.nl/en/working-a...
ru.nl
PhD Position: Computational Affective Neuroscience and Ultrasound Neuromodulation | Radboud University
Do you want to work as a PhD 'Computational Affective Neuroscience and Neuromodulation' at the Faculty of Social Sciences? Check our vacancy!
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Damian Koevoet @dkoevoet.bsky.social · 05/05/2026
Past experiences shape current selection. But when and how strong are past and present targets represented in the brain? In our newest paper, we show that past and present search targets are concurrently represented in the brain. Out now in @plosbiology.org doi.org/10.1371/jour... #neuroscience
doi.org
Past and present goals are represented concurrently during visual search
Past experience and our current goals guide what information to focus on. But how and when does the brain represent the past and the present? This new study shows that the brain represents the past an...
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Andrey Chetverikov @achetverikov.bsky.social · 27/04/2026
We have 3 PhD positions at our department (www.jobbnorge.no/nn-no/ledige...). Know a good student interested in working with me on perception / visual memory? I'd be happy to support the proposal! A catch: this person must speak a Scandinavian language as the position implies some teaching duties.
jobbnorge.no
Tre stipendiatstillingar ved Institutt for samfunnspsykologi (299274) | Universitetet i Bergen
Stillingstittel: Tre stipendiatstillingar ved Institutt for samfunnspsykologi (299274), Arbeidsgivar: Universitetet i Bergen, Søknadsfrist: søndag 16. august 2026
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Nika Adamian @nikaadamian.bsky.social · 21/04/2026
Tenure-track position in Denmark "with a particular focus on visual perception, including visual attention, working memory, and visual neuroscience" #neurojobs #neuroskyence #visionscience fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/Candid...
fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com
Tenure Track Assistant Professor in Cognitive Psychology
The Department of Psychology at the University of Southern Denmark invites applications for a full-time position as tenure-track Assistant Professor. The position is a six-year tenure-track appointmen...
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Christoph Strauch @cstrauch.bsky.social · 19/04/2026
Nothing not to love here. Some extra nerd love for the joy letting his pupil dilate at 14:32 (that is not remotely related to ours!). Maybe it's me projecting that it's joy. But you can't really stop me from that, can you?
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Sebastiaan Mathôt @cogsci.nl · 17/04/2026
❤️‍🔥 Exciting new preprint ❤️‍🔥 #Pupil constriction causes, by itself and independently of visual stimulation, activity in the human #retina and #visual system. w/ @anavili.bsky.social @veerahelmisofia.bsky.social @hakankarsilar.bsky.social @olaf.dimigen.de 1/4 🧵 www.biorxiv.org/content/10.6...
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Live Science @livescience.com · 27/03/2026
Synesthesia isn't just in your mind. The body reacts as if the colors were real. www.livescience.com/health/synes...
livescience.com
Synesthesia isn't just in your mind. The body reacts as if the colors were real.
Pupil size in people with synesthesia changed depending on how bright or dark the perceived colors were.
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Christoph Strauch @cstrauch.bsky.social · 30/03/2026
For those interested in (re)analyzing (video-based) pupil data and looking into a solution for the foreshortening error (resulting from changes in the angle between camera and eye), check our open access Behavior Research Methods paper! rdcu.be/faNse link.springer.com/article/10.3...
rdcu.be
Snip  & Stitch: a simple and accessible correction for the pupil foreshortening error
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Richard Huskey @richardhuskey.bsky.social · 27/03/2026
1/n New preprint with Ziyu Zhao, @dougaparry.bsky.social, & @jacobtfisher.online Can an AI bot complete a live online reaction-time task & produce data that passes as human? We built an autonomous bot to take the Attention Network Test (ANT) in real time Preprint: doi.org/10.31234/osf...
Screenshot of a manuscript title page. Title: “An AI agent can complete the Attention Network Test with human-like behavioral signatures: Implications for the bot-or-not debate.” Authors: Richard Huskey, Ziyu Zhao, Douglas A. Parry, and Jacob T. Fisher, with university affiliations listed below. The abstract says an autonomous AI agent completed the Attention Network Test in real time and produced mostly human-like behavioral data. Across seven code revisions, the bot achieved attention network scores within published human norms, 95.8% accuracy, and reaction-time patterns showing positive skew and trial-to-trial autocorrelation. Compared with 796 human participants, the bot fell within the human range on several measures but showed elevated autocorrelation and a bimodal reaction-time distribution due to intermittent detection failures. The paper argues this makes simple bot-vs-human detection harder in online reaction-time studies.
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Andrey Chetverikov @achetverikov.bsky.social · 18/03/2026
A reply to my reply about bots in online studies - and a very cool demonstration! I summarized my thoughts in the comments to this post.
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Christoph Strauch @cstrauch.bsky.social · 18/03/2026
We recently warned of bots in online behavioral research. @achetverikov.bsky.social showed there is no evidence for that in our @joinprolific.bsky.social data - but that doesn't mean we're safe. Agentic AI can do behavioral tasks through prompting alone. Reply & videos: osf.io/3cztr/overview
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Christoph Strauch @cstrauch.bsky.social · 07/03/2026
We show that synesthesia is sensory and automatic in nature: the pupil scales with the brightness of experienced synesthetic colors. doi.org/10.7554/eLif... Now in its new dress @elife.bsky.social (convincing & valuable in round 1). If anyone wants to pick up the method, happy to share & explain!
doi.org
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Christoph Strauch @cstrauch.bsky.social · 19/02/2026
Recent work has shown how vulnerable online survey research is to LLMs. Motivated by this, we examined our online Posner cueing data from Prolific. It's concerning. We now must carefully consider when (or whether?) online behavioral data can be trusted. see our comment: www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Christoph Strauch @cstrauch.bsky.social · 10/02/2026
Congratulations Ana on this superb dissertation!  Was a pleasure to read the thesis and be part of the i̶̶̶n̶̶̶t̶̶̶e̶̶̶r̶̶̶r̶̶̶o̶̶̶g̶̶̶a̶̶̶t̶̶̶i̶̶̶o̶̶̶n̶̶̶ ̶̶̶c̶̶̶o̶̶̶m̶m̶i̶̶̶t̶̶̶t̶̶̶e̶̶̶e̶̶̶ defense board! :)
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Ana Vilotijević @anavili.bsky.social · 18/12/2025
Talking today about whether attention can modulate retinal activity, come join! 👁️ #nvp25
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Sebastiaan Mathôt @cogsci.nl · 18/12/2025
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
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Christoph Strauch @cstrauch.bsky.social · 26/11/2025
Synesthetes claim sensory experiences, such as seeing color when reading or hearing a (black) number. 
But how genuine are these reports and sensations? We introduce a rather direct measure of synesthetic perception: Synesthetes’ pupils respond to evoked color as if it was real color #vision! 👁️🎨🧪
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Christoph Strauch @cstrauch.bsky.social · 26/11/2025
Synesthetes claim sensory experiences, such as seeing color when reading or hearing a (black) number. 
But how genuine are these reports and sensations? We introduce a rather direct measure of synesthetic perception: Synesthetes’ pupils respond to evoked color as if it was real color #vision! 👁️🎨🧪
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Surya Gayet @suryagayet.bsky.social · 24/11/2025
Celebration time 🥳 @liangyouzhang.bsky.social publishes the 1st empirical paper of his PhD! We show that numerosity adaptation (a seemingly high-level stim property) suppresses neural responses in early visual cortex; these adaptation FX increase as we progress thru the visual processing hierarchy.
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Sebastiaan Mathôt @cogsci.nl · 12/11/2025
Most of you know @suryagayet.bsky.social as a successful visual-attention researcher. But he also had an active #music career as a #rap artist. And like Jay-Z before him, he has briefly come out of retirement with a new album. Check it out—it's very good! 🎤🎶 open.spotify.com/album/7HrnAB...
open.spotify.com
Drijfzand
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Christoph Strauch @cstrauch.bsky.social · 24/10/2025
Very proud of @dkoevoet.bsky.social's latest piece now accepted in Journal of Neuroscience, together with student Vicky Voet, Stefan van der @stigchel.bsky.social (all @attentionlab.bsky.social Utrecht) and Henry Jones & Ed Awh from Uni of Chicago.
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Benedikt Ehinger @benediktehinger.bsky.social · 23/10/2025
If you are looking, or know someone who is looking - please forward them! I'm open to discuss the topic, but o.c. many ideas!!
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Damian Koevoet @dkoevoet.bsky.social · 14/10/2025
Spatial attention and working memory are popularly thought to be tightly coupled. Yet, distinct neural activity tracks attentional breadth and WM load. In a new paper @jocn.bsky.social, we show that pupil size independently tracks breadth and load. doi.org/10.1162/JOCN...
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Matthias Nau @matthiasnau.bsky.social · 25/09/2025
Incredible study by Raut et al.: by tracking a single measure (pupil size), you can model slow, large-scale dynamics in neuronal calcium, metabolism, and brain blood oxygen through a shared latent space! www.nature.com/articles/s41...
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Christoph Strauch @cstrauch.bsky.social · 27/08/2025
I'll show some (I think) cool stuff about how we can measure the phenomenology of synesthesia in a physiological way at #ECVP - Color II, atrium maximum, 9:15, Thursday. say hi and show your colleagues that you're one of the dedicated ones by getting up early on the last day!
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Sebastiaan Mathôt @cogsci.nl · 27/08/2025
A good reason to make it to the early #visualcognition session of today's #ecvp2025 👉 @anavili.bsky.social will talk about how attending to fuzzy bright/dark patches that have faded from awareness (through adaptation-like processes) still affect pupil size! ⚫👀⚪ Paper: dx.doi.org/10.1016/j.co...
dx.doi.org
Redirecting
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lassedietz.bsky.social @lassedietz.bsky.social · 24/08/2025
Excited to present at #ECVP2025 - Monday afternoon, Learning & Memory - about how anticipating relevant visual events prepares visual processing for efficient memory-guided visual selection! 🧠🥳 @attentionlab.bsky.social @ecvp.bsky.social Preprint for more details: www.biorxiv.org/content/10.1...
biorxiv.org
Anticipated Relevance Prepares Visual Processing for Efficient Memory-Guided Selection
Finding an object typically involves the use of working memory to prioritize relevant visual information at the right time. For example, successfully detecting a highway exit sign is useless when your...
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Christoph Strauch @cstrauch.bsky.social · 24/08/2025
#ECVP2025 starts with a fully packed room! I'll show data, demonstrating that synesthetic perception is perceptual, automatic, and effortless. Join my talk (Thursday, early morning.., Color II) to learn how the qualia of synesthesia can be inferred from pupil size. Join and (or) say hi!
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Emma E.M. Stewart @eemstewart.bsky.social · 12/08/2025
Eye movements are cheap, right? Not necessarily! 💰 In our review just out in @natrevpsychol.nature.com, Alex Schütz and I discuss the different costs associated with making an eye movement, how these costs affect behaviour, and the challenges of measuring this… rdcu.be/eAm69 #visionscience #vision
rdcu.be
A review of the costs of eye movements
Nature Reviews Psychology - Eye movements are the most frequent movements that humans make. In this Review, Schütz and Stewart integrate evidence regarding the costs of eye movements and...
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Christoph Strauch @cstrauch.bsky.social · 29/07/2025
Gaze heatmaps (are popular especially for eye-tracking beginners and in many applied domains. How many participants should be tested? Depends of course, but our guidelines help navigating this in an informed way. Out now in BRM (free) doi.org/10.3758/s134... @psychonomicsociety.bsky.social
data saturation for gaze heatmaps. Initially, any additional participant will bring the total NSS or AUC as measures for heatmap similarity a lot closer to the full sample. However, the returns diminish increasingly at higher n.
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Elkan Akyurek @elkanakyurek.bsky.social · 03/07/2025
Jelmer Borst and I are looking for a PhD candidate to build an EEG-based model of human working memory! This is a really cool project that I've wanted to kick off for a while, and I can't wait to see it happen. Please share and I'm happy to answer any Qs about the project! www.rug.nl/about-ug/wor...
rug.nl
Vacatures bij de RUG
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Rosanne Rademaker @rademaker.bsky.social · 01/07/2025
Curious 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
rademakerlab.com
PhD position — Rademaker lab
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Christoph Strauch @cstrauch.bsky.social · 18/06/2025
We had a splendid day: great weather, got to wear peculiar/special clothes, and then Alex even defended his PhD (and nailed it!). Congratulations dr. Alex, super proud of your achievements!!!
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Damian Koevoet @dkoevoet.bsky.social · 12/06/2025
Now published in Attention, Perception & Psychophysics @psychonomicsociety.bsky.social Open Access link: doi.org/10.3758/s134...
link.springer.com
Reappearing sensory input guides visual working memory prioritization - Attention, Perception, & Psychophysics
Adaptive behavior necessitates the prioritization of the most relevant information in the environment (external) and in memory (internal). Internal prioritization is known to guide the selection of ex...
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AttentionLab Utrecht University @attentionlab.bsky.social · 18/05/2025
@vssmtg.bsky.social presentations today! R2, 15:00 @chrispaffen.bsky.social: Functional processing asymmetries between nasal and temporal hemifields during interocular conflict R1, 17:15 @dkoevoet.bsky.social: Sharper Spatially-Tuned Neural Activity in Preparatory Overt than in Covert Attention
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Christoph Strauch @cstrauch.bsky.social · 13/05/2025
Cool new preprint by Damian. Among other findings: eye pupillometry, EEG & IEMs show that the premotor theory of attention can't be the full story: eye movements are associated with an additional, separable, spatially tuned process compared to covert attention, hundreds of ms before shifts happen.
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