Andrey Chetverikov
@achetverikov.bsky.social
Associate Professor in Cognitive Psychology at the University of Bergen, Norway. I study decision-making and biases in perception and visual working memory, with occasional forays into higher level decisions. https://andreychetverikov.org
This is my soul animal at the cover of the new Andrew Bird's EP (good music as well)
soundcloud.com/andrewbird/s...
soundcloud.com/andrewbird/s...
November 10, 2025 at 4:00 PM
This is my soul animal at the cover of the new Andrew Bird's EP (good music as well)
soundcloud.com/andrewbird/s...
soundcloud.com/andrewbird/s...
FYI, if you are using Zotero, koofr.eu provides a free 10 gb cloud with webdav that could be used for synchronizing pdfs. I tested it this week as I no longer have access to the server I used previously. Seems to work well. koofr.eu/blog/posts/k...
Koofr with Zotero via WebDAV
Are you using Zotero with Box and don’t know what to do when Box support for WebDAV eventually runs out? Are you searching for Zotero with Box alternative? Don’t fret, Koofr is here for you. Read abou...
koofr.eu
November 8, 2025 at 4:11 PM
FYI, if you are using Zotero, koofr.eu provides a free 10 gb cloud with webdav that could be used for synchronizing pdfs. I tested it this week as I no longer have access to the server I used previously. Seems to work well. koofr.eu/blog/posts/k...
There was a paper in Science few years back claiming that they could get temporal precision on the scale of ms from _fMRI_ data. It caused quite a discussion in the lab I worked at. Turns out, it's been retracted this September: www.science.org/doi/10.1126/... Is there a thread about it somewhere?
Retraction
On 14 October 2022, Science published the Research Article “In vivo direct imaging of neuronal activity at high temporospatial resolution” by P. T. Toi et al. (1). On 24 August 2023, Science ran an Ed...
www.science.org
November 8, 2025 at 4:05 PM
There was a paper in Science few years back claiming that they could get temporal precision on the scale of ms from _fMRI_ data. It caused quite a discussion in the lab I worked at. Turns out, it's been retracted this September: www.science.org/doi/10.1126/... Is there a thread about it somewhere?
Huge congrats to @ben-kop.bsky.social on a successful PhD defense! Ben, it was my great pleasure to work with you, and I will also fondly remember our little chats at parties and conferences =) All the best in your career, wherever it takes you.
November 5, 2025 at 4:48 PM
Huge congrats to @ben-kop.bsky.social on a successful PhD defense! Ben, it was my great pleasure to work with you, and I will also fondly remember our little chats at parties and conferences =) All the best in your career, wherever it takes you.
Reposted by Andrey Chetverikov
We see the forest, but what do we know about the trees? Our perception of ensembles may be richer than previously thought. Read more in a post by @ankosov.bsky.social on a new #psynomPBR paper by Vladislav Khvostov @khvo100v.bsky.social, Árni Gunnar Ásgeirsson, & Árni Kristjánsson buff.ly/3NCjHIz
November 4, 2025 at 9:01 PM
We see the forest, but what do we know about the trees? Our perception of ensembles may be richer than previously thought. Read more in a post by @ankosov.bsky.social on a new #psynomPBR paper by Vladislav Khvostov @khvo100v.bsky.social, Árni Gunnar Ásgeirsson, & Árni Kristjánsson buff.ly/3NCjHIz
Reposted by Andrey Chetverikov
Please repost! I am looking for a PhD candidate in the area of Computational Cognitive Neuroscience to start in early 2026.
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
November 4, 2025 at 1:57 PM
Please repost! I am looking for a PhD candidate in the area of Computational Cognitive Neuroscience to start in early 2026.
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
Reposted by Andrey Chetverikov
"I wanted a real ship, because the ship is a character... I wanted the movie to test the capabilities of every single craft in moviemaking." —Guillermo del Toro @realgdt.bsky.social
More dates/showtimes added for FRANKENSTEIN > 🎟 bit.ly/Belcourt-FRANKENSTEIN
More dates/showtimes added for FRANKENSTEIN > 🎟 bit.ly/Belcourt-FRANKENSTEIN
November 4, 2025 at 2:00 AM
"I wanted a real ship, because the ship is a character... I wanted the movie to test the capabilities of every single craft in moviemaking." —Guillermo del Toro @realgdt.bsky.social
More dates/showtimes added for FRANKENSTEIN > 🎟 bit.ly/Belcourt-FRANKENSTEIN
More dates/showtimes added for FRANKENSTEIN > 🎟 bit.ly/Belcourt-FRANKENSTEIN
Reposted by Andrey Chetverikov
Lol. Ibn Khaldun (1332-1406) had a few bangers too, like this: "people publish too much"
November 4, 2025 at 5:06 AM
Lol. Ibn Khaldun (1332-1406) had a few bangers too, like this: "people publish too much"
Reposted by Andrey Chetverikov
Open tenure track the University of Akureyri, Iceland.
We're hiring!
The University of Akureyri is seeking a specialist in psychology. Applicants from all areas of psychology are welcome to apply.
The University of Akureyri is seeking a specialist in psychology. Applicants from all areas of psychology are welcome to apply.
Open Position: Assistant Professor at the Faculty of Psychology
The University of Akureyri is seeking a specialist in psychology. Applicants from all areas of psychology are welcome to apply, but particular emphasis is placed on the following fields: clinical psyc...
www.unak.is
November 3, 2025 at 9:33 PM
Open tenure track the University of Akureyri, Iceland.
Reposted by Andrey Chetverikov
Now I'm also looking for a research software engineer to implement a pile of research results to R packages loo, posterior, bayesplot, projpred, priorsense, brms or/and Python packages ArviZ, Bambi and Kulprit. Apply by email with no specific deadline (see contact info at users.aalto.fi/~ave/)
I'm now also looking for a postdoc with strong Bayesian background and interest in developing Bayesian cross-validation theory, methods and software. Apply by email with no specific deadline (see contact information at users.aalto.fi/~ave/).
Others, please share
Others, please share
I'm looking for a doctoral student with Bayesian background to work on Bayesian workflow and cross-validation (see my publication list users.aalto.fi/~ave/publica... for my recent work) at Aalto University.
Apply through the ELLIS PhD program (dl October 31) ellis.eu/news/ellis-p...
Apply through the ELLIS PhD program (dl October 31) ellis.eu/news/ellis-p...
November 3, 2025 at 11:13 AM
Now I'm also looking for a research software engineer to implement a pile of research results to R packages loo, posterior, bayesplot, projpred, priorsense, brms or/and Python packages ArviZ, Bambi and Kulprit. Apply by email with no specific deadline (see contact info at users.aalto.fi/~ave/)
Reposted by Andrey Chetverikov
I'm now also looking for a postdoc with strong Bayesian background and interest in developing Bayesian cross-validation theory, methods and software. Apply by email with no specific deadline (see contact information at users.aalto.fi/~ave/).
Others, please share
Others, please share
I'm looking for a doctoral student with Bayesian background to work on Bayesian workflow and cross-validation (see my publication list users.aalto.fi/~ave/publica... for my recent work) at Aalto University.
Apply through the ELLIS PhD program (dl October 31) ellis.eu/news/ellis-p...
Apply through the ELLIS PhD program (dl October 31) ellis.eu/news/ellis-p...
ELLIS PhD Program: Call for Applications 2025
The ELLIS mission is to create a diverse European network that promotes research excellence and advances breakthroughs in AI, as well as a pan-European PhD program to educate the next generation of AI...
ellis.eu
October 29, 2025 at 2:37 PM
I'm now also looking for a postdoc with strong Bayesian background and interest in developing Bayesian cross-validation theory, methods and software. Apply by email with no specific deadline (see contact information at users.aalto.fi/~ave/).
Others, please share
Others, please share
Reposted by Andrey Chetverikov
Report of an adverse event (brain injury leading to lasting cognitive deficits) during a TUS trial targeting NAc to treat substance use disorder, with unclarity about the stimulation parameters---see the comments of the dissenting reviewers of this letter:
A brain injury was reported in a trial using ultrasound, framed as low-intensity TUS. Kim Butts Pauly and I reviewed the case and disagreed with how it's presented. Key acoustic data are missing.
Case: doi.org/10.1016/j.br...
Letters: www.elsa-fouragnan.com/blog | web.stanford.edu/~kimbutts/Le...
Case: doi.org/10.1016/j.br...
Letters: www.elsa-fouragnan.com/blog | web.stanford.edu/~kimbutts/Le...
Brain Injury During Focused Ultrasound Neuromodulation for Substance Use Disorder
www.sciencedirect.com
November 3, 2025 at 11:47 AM
Report of an adverse event (brain injury leading to lasting cognitive deficits) during a TUS trial targeting NAc to treat substance use disorder, with unclarity about the stimulation parameters---see the comments of the dissenting reviewers of this letter:
Reposted by Andrey Chetverikov
What is the representation underlying cognition? Formal models rely on multidimensional scaling of similarity judgments to derive the representation. In this preprint with @mdlbayes.bsky.social, we take an alternative approach; we build Bayesian generative models for three cognitive tasks. /1
Similarity judgments and visual working memory do not share the same cognitive representation: https://osf.io/fm9vz
November 3, 2025 at 7:34 AM
What is the representation underlying cognition? Formal models rely on multidimensional scaling of similarity judgments to derive the representation. In this preprint with @mdlbayes.bsky.social, we take an alternative approach; we build Bayesian generative models for three cognitive tasks. /1
Reposted by Andrey Chetverikov
Check our new Psych Science paper w/Daniil Azarov & Daniil Grigorev. Although an ability to recognize a familiar object among new ones clearly depends on how many and which objects there are, we show a remarkable stability of underlying "representational spaces"
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
October 24, 2025 at 1:52 PM
Check our new Psych Science paper w/Daniil Azarov & Daniil Grigorev. Although an ability to recognize a familiar object among new ones clearly depends on how many and which objects there are, we show a remarkable stability of underlying "representational spaces"
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
Reposted by Andrey Chetverikov
Mistaking verbal fluency for intelligence was never a good idea and LLMs bursting that bubble is probably not bad, actually
<norman rockwell man standing JPG>
<norman rockwell man standing JPG>
October 30, 2025 at 1:26 PM
Mistaking verbal fluency for intelligence was never a good idea and LLMs bursting that bubble is probably not bad, actually
<norman rockwell man standing JPG>
<norman rockwell man standing JPG>
new preprint on serial dependence and uncertainty! interesting stuff.
📢New preprint w/ ayaecanb.bsky.social! Noisy visual representations strengthen repulsive serial biases but inducer uncertainty doesn’t. Working memory adapts to reduce error in ways that exceed simple Bayesian explanations.
#workingmemory #VisualWorkingMemory
🔗 www.researchsquare.com/article/rs-7...
#workingmemory #VisualWorkingMemory
🔗 www.researchsquare.com/article/rs-7...
Target Fidelity, but not Inducer Fidelity, Modulates Repulsive Serial Dependence of Visual Working Memory Representations
Visual representations are open to systematic functional biases. In visual working memory, representations of serially presented stimuli can either attract or repel each other. Such serial dependence ...
www.researchsquare.com
October 30, 2025 at 2:33 PM
new preprint on serial dependence and uncertainty! interesting stuff.
Reposted by Andrey Chetverikov
Every major academic debate is just a 50-year exercise in pretending the middle ground doesn’t exist
October 30, 2025 at 7:31 AM
Every major academic debate is just a 50-year exercise in pretending the middle ground doesn’t exist
Haven't read the book, but I was very confused by this decision tree on the cover
Did you know former pro poker player ♠️ @annieduke.com has her PhD in #CognitivePsychology & writes about #DecisionScience? I'm so pumped to read her books! 🤩📚🔖 www.today.com/video/annie-...
October 29, 2025 at 10:22 AM
Haven't read the book, but I was very confused by this decision tree on the cover
Reposted by Andrey Chetverikov
Check out our latest work led by @joeyzhou.bsky.social on alpha oscillatory networks in PLOS Biology!
➡️ journals.plos.org/plosbiology/...
Do ongoing alpha activity fluctuations influence perceptual sensitivity or criterion?
➡️ journals.plos.org/plosbiology/...
Do ongoing alpha activity fluctuations influence perceptual sensitivity or criterion?
Distinct alpha networks modulate different aspects of perceptual decision-making
Fluctuations in alpha-band neural oscillations influence whether we perceive faint stimuli, but how these oscillations relate to different perceptual processes is not clear. This study shows that alph...
journals.plos.org
October 23, 2025 at 7:27 PM
Check out our latest work led by @joeyzhou.bsky.social on alpha oscillatory networks in PLOS Biology!
➡️ journals.plos.org/plosbiology/...
Do ongoing alpha activity fluctuations influence perceptual sensitivity or criterion?
➡️ journals.plos.org/plosbiology/...
Do ongoing alpha activity fluctuations influence perceptual sensitivity or criterion?
Reposted by Andrey Chetverikov
Current trends in European Research funding... 😵💫 erc.europa.eu/news-events/...
October 23, 2025 at 1:24 PM
Current trends in European Research funding... 😵💫 erc.europa.eu/news-events/...
Reposted by Andrey Chetverikov
S-CCS Lab PhD Position
3+2 year 100% TVL-13 position in '26 - open topic on the intersection of combined EEG-EyeTracking, Statistical Methods, Cognitive Modelling, VR/Mobile EEG, Vision ...
Apply via Max-Planck IMPRS-IS program until 2025-11-16 imprs.is.mpg.de
Read: www.s-ccs.de/philosophy
3+2 year 100% TVL-13 position in '26 - open topic on the intersection of combined EEG-EyeTracking, Statistical Methods, Cognitive Modelling, VR/Mobile EEG, Vision ...
Apply via Max-Planck IMPRS-IS program until 2025-11-16 imprs.is.mpg.de
Read: www.s-ccs.de/philosophy
September 23, 2025 at 7:57 AM
S-CCS Lab PhD Position
3+2 year 100% TVL-13 position in '26 - open topic on the intersection of combined EEG-EyeTracking, Statistical Methods, Cognitive Modelling, VR/Mobile EEG, Vision ...
Apply via Max-Planck IMPRS-IS program until 2025-11-16 imprs.is.mpg.de
Read: www.s-ccs.de/philosophy
3+2 year 100% TVL-13 position in '26 - open topic on the intersection of combined EEG-EyeTracking, Statistical Methods, Cognitive Modelling, VR/Mobile EEG, Vision ...
Apply via Max-Planck IMPRS-IS program until 2025-11-16 imprs.is.mpg.de
Read: www.s-ccs.de/philosophy
Reposted by Andrey Chetverikov
RT @mamassian.bsky.social:
Delighted to share this work led by Thomas Schaffhauser on the processing of rich natural-like motion stimuli (“motion clouds”) in the visual cortex of the ferret:
https://www.biorxiv.org/content/10.1101/2025.09.23.678183v1
Delighted to share this work led by Thomas Schaffhauser on the processing of rich natural-like motion stimuli (“motion clouds”) in the visual cortex of the ferret:
https://www.biorxiv.org/content/10.1101/2025.09.23.678183v1
October 7, 2025 at 3:37 PM
RT @mamassian.bsky.social:
Delighted to share this work led by Thomas Schaffhauser on the processing of rich natural-like motion stimuli (“motion clouds”) in the visual cortex of the ferret:
https://www.biorxiv.org/content/10.1101/2025.09.23.678183v1
Delighted to share this work led by Thomas Schaffhauser on the processing of rich natural-like motion stimuli (“motion clouds”) in the visual cortex of the ferret:
https://www.biorxiv.org/content/10.1101/2025.09.23.678183v1
I had the great honor of serving as an opponent for Lari Virtanen’s PhD defense on Friday at the University of Helsinki. Lari isn’t on bsky, but check out his papers on ensemble perception and color that show just how flexible and efficient it is! researchportal.helsinki.fi/en/persons/l...
Lari Sakari Virtanen
researchportal.helsinki.fi
October 6, 2025 at 7:04 AM
I had the great honor of serving as an opponent for Lari Virtanen’s PhD defense on Friday at the University of Helsinki. Lari isn’t on bsky, but check out his papers on ensemble perception and color that show just how flexible and efficient it is! researchportal.helsinki.fi/en/persons/l...
When AI summaries sound like conspiracy theories
Discover the surprising truth about visual working memory - features are not stored independently, but as interdependent objects. This groundbreaking finding challenges conventional wisdo...
🧵 Thread below
Full analysis: https://helixbrief.com/article/fbd1e76a-3a3f-4788-8078-afd3d79a4366
🧵 Thread below
Full analysis: https://helixbrief.com/article/fbd1e76a-3a3f-4788-8078-afd3d79a4366
October 6, 2025 at 6:32 AM
When AI summaries sound like conspiracy theories