Andrey Chetverikov
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achetverikov.bsky.social
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
ha, and now I notice a typo: should be instead "_of_ definitions _on_ the tasks" not "on definitions of the tasks". Curse you, attention, for this slip!
November 27, 2025 at 8:40 AM
It is! This must have been a tremendous amount of work for you, so congrats! I'm eager to read the rest of the comments (as soon as I'm done with grading, so probably in a year or two)
November 26, 2025 at 1:26 PM
Like other layman terms it could be useful in the classroom or in outreach, but it's not useful as a target for theory-building. And it's not about ambitions ("not everyone needs to work towards this ambitious goal" says the response) - it's like building "a theory of the brain". Makes no sense.
November 26, 2025 at 10:41 AM
... I still stand by our point that "Focusing instead on definitions of the tasks that observers perform and building computational models of their decisions ... seem to be a more promising avenue". Attention (like perception or memory) is just too broad and vague to have a meaningful theory.
November 26, 2025 at 10:41 AM
Reposted by Andrey Chetverikov
And the next step? Full voxel-level modeling.

Recent numerical advances cracked the scalability barrier. Voxel-level hierarchical modeling is now feasible, revealing just how punishing traditional multiple-comparison adjustments really are.
arxiv.org/abs/2511.12825
SIMBA: Scalable Image Modeling using a Bayesian Approach, A Consistent Framework for Including Spatial Dependencies in fMRI Studies
Bayesian spatial modeling provides a flexible framework for whole-brain fMRI analysis by explicitly incorporating spatial dependencies, overcoming the limitations of traditional massive univariate app...
arxiv.org
November 18, 2025 at 10:13 PM
Its a first paper from Ekaterina Andriushchenko's PhD, so all kudos to her for the work! 5/5
November 15, 2025 at 11:08 AM
We also found that prolonged maintenance strengthens serial dependence, which is nice. But the lack of an attention effect, despite better precision for cued items, creates problems for existing models and suggests that changes in item representation may be responsible. 4/n
November 15, 2025 at 11:08 AM
It looks like all the previous studies looking at attention effects confounded attention with reporting. And we used 80% cueing paradigm comparing cued and (non)reported items with non-cued and (non)reported ones. The results show a reporting effect but not a cueing effect. 3/n
November 15, 2025 at 11:08 AM
Our results challenge previous claims that prioritization via attentional cueing modulates serial dependence (SD). Multiple previous studies suggested attended items/features produce stronger SD, but in two experiments we found no effect of precueing or postcueing—and we think we know why! 2/n
November 15, 2025 at 11:08 AM
Although I probably wouldn't be putting all these stats (like CIs for eff. sizes) and try to write it a bit differently. I don't know, feel quite readable to me, but maybe I'm biased.
November 15, 2025 at 9:31 AM
I actually do write like that (or try to) and hate stats in tables. It's much easy to interpret things when you see the stats by the statements rather than deciphering which line in the table to look at. And for a bird's-eye view you have the figures and the intro/conclusions in each paragraph.
November 15, 2025 at 9:23 AM
ahhh, now I see why: the last author of the original paper replies to the reanalysis. I guess he wasn't in favor of the retraction.
link.springer.com/article/10.3...
Reply to Duffy and Smith’s (2018) reexamination - Psychonomic Bulletin & Review
Duffy, Huttenlocher, Hedges, and Crawford (2010, Psychonomic Bulletin & Review, 17[2], 224–230) examined whether the well-established central tendency bias in people’s reproductions of stimuli reflect...
link.springer.com
November 14, 2025 at 4:28 PM
at least a warning label would be nice
November 14, 2025 at 4:24 PM