Sign in

Taiki Oka

@toka-neuro.bsky.social
64 followers 90 following 159 posts

PhD in medicine. Interested in sensitivity, Locus coeruleus, and fMRI neurofeedback Google scholar: scholar.google.co.jp/citations?user…

PostsRepliesMedia
Reposted by Taiki Oka
moin syed @syeducation.bsky.social · 08/10/2026
New diamond open access outlet for developmental psych. Free to publish, free to read, and led by a great team. One more step away from for-profit publishers.
22314
Reposted by Taiki Oka
Lukas Gunschera @lukasgunschera.com · 06/10/2026
Addiction has become the default framework for interpreting problematic social media use. It shapes how it is measured, discussed, regulated, and what support young people are offered. But does it match the experiences of young people who report feeling addicted to social media? 🧵(1/7)
36526
Reposted by Taiki Oka
Nora Bradford @norabradford.bsky.social · 05/10/2026
love to see metacognition getting public attention:) www.thetransmitter.org/decision-mak...
thetransmitter.org
Is confidence a second thought—or part of the first one?
Neural circuits may sometimes calculate confidence in a decision simultaneously with the choice itself.
0135
Taiki Oka @toka-neuro.bsky.social · 06/10/2026
psychiatryonline.org/doi/10.1176/... Artificial Intelligence as the Computational Framework for Adaptive Closed-Loop Neuromodulation in Psychiatry
psychiatryonline.org
Artificial Intelligence as the Computational Framework for Adaptive Closed-Loop Neuromodulation in Psychiatry | American Journal of Psychiatry
Adaptive neuromodulation offers a path toward personalized neuropsychiatric treatment by allowing therapy to respond to clinically meaningful neurophysiological and behavioral changes. Its clearest cl...
000
Taiki Oka @toka-neuro.bsky.social · 04/10/2026
I am going to rtFIN2026 in Geneve! Looking forward to seeing nostalgic faces and newly getting connection!!
000
Reposted by Taiki Oka
Iyad Rahwan | إياد رهوان @iyadrahwan.bsky.social · 29/09/2026
Please share widely, especially to researchers in disaster and war zones. Proud to launch the 2nd round of the Max Planck mentoring program for researchers (including students) at risk due to natural disaster or war. Deadline 18 October. www.maxminds.mpg.de/3630/apply
maxminds.mpg.de
How to Apply
0921
Taiki Oka @toka-neuro.bsky.social · 29/09/2026
www.science.org/doi/10.1126/... Population coding under the scale invariance of high-dimensional noise
science.org
Population coding under the scale invariance of high-dimensional noise
High-dimensional scale-invariant neural activity is ubiquitous across brain regions and species, but its implications for information coding remain unclear. Here, we ask how stimulus information in the high-dimensional activity of mouse V1 scales with ...
000
Reposted by Taiki Oka
Sandra Romero Pinto @sromeropinto.bsky.social · 25/09/2026
Happy to have this finally out! TL;DR: The evolution of beliefs over time can be formulated as a dynamical system, and OFC neural activity appears to implement this system with its own dynamics. These emerge without explicit supervision—when animals learn to predict value in simple Pavlovian tasks
14518
Taiki Oka @toka-neuro.bsky.social · 24/09/2026
www.biorxiv.org/content/10.6... Dynamic belief representation and updating through learned attractor-like dynamics in the frontal cortex
biorxiv.org
000
Reposted by Taiki Oka
Tobias Hauser @tobiasuhauser.bsky.social · 21/09/2026
Cool postdoc position with @koumurayama.bsky.social , Michiko Sakaki and Peter Dayan on modelling educational data - can highly recommend! 👇🏼 uni-tuebingen.de/fakultaeten/...
uni-tuebingen.de
Postdoctoral Research Fellow in Computational Modeling of Digital Education Data
042
Taiki Oka @toka-neuro.bsky.social · 22/09/2026
Estimating trial-wise modulation of functional connectivity using event-related fMRI www.biorxiv.org/content/10.6...
biorxiv.org
Estimating trial-wise modulation of functional connectivity using event-related fMRI
Understanding the neural basis of human cognition requires measuring not only localized brain activity but also how functional interactions between brain regions change in response to different cognit...
000
Taiki Oka @toka-neuro.bsky.social · 22/09/2026
The Future of Artificial Intelligence and Emerging Technologies in Mental Health: Prospects, Challenges, and a Roadmap for Personalized Treatment karger.com/pps/article/...
karger.com
The Future of Artificial Intelligence and Emerging Technologies in Mental Health: Prospects, Challenges, and a Roadmap for Personalized Treatment
Abstract. Background. Artificial intelligence (AI), alongside emerging digital and neurotechnologies, is increasingly incorporated into mental health care, psychosomatic medicine, and psychotherapy. H...
000
Reposted by Taiki Oka
bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 19/09/2026
MERIT: A No-Code Platform for Unifying High-Precision Cognitive Assessment Across Laboratory and Real-World Settings www.biorxiv.org/content/10.64898/20…
001
Reposted by Taiki Oka
Andrea Howard @drandreahoward.bsky.social · 18/09/2026
New paper from me, out soon in Behavior Research Methods: I'm a lil bit obsessed with good online recruitment and the result is this side-quest paper that made use of data we had collected that recruited people online in three ways (met them on Zoom, validated their email, and Prolific). 🧵>>
35618
Reposted by Taiki Oka
Michael Gaebler @michaelgaebler.com · 18/09/2026
Get ready! *MindBrainBody Symposium* 2027 Keynotes are confirmed 🥳 @hakwan.bsky.social (online) @maramather.bsky.social @camillanord.bsky.social Hyeongdong Park Asya Rolls 📆 March 17-19, 2027 📍Berlin & online 📬 Submit by Dec 10, 2026 (!) 🔗 mindbrainbody.de (official announcement soon)
Logo of the MindBrainBody Symposium
17139
Reposted by Taiki Oka
Stanislas Dehaene @standehaene.bsky.social · 18/09/2026
An important new paper from the lab : in a few years, vision models have progressed to such an extent that they almost match human perception in the domain of geometry (but may still fall short of having a genuine language of shapes).
0176
Reposted by Taiki Oka
PROMISE @promiseproject.bsky.social · 18/09/2026
Yesterday, the EU presented plans for stricter age-based rules for social media use. Includes - a ban for under-13s - “mini accounts” for 13–15-year-olds under parental supervision with time limits - A separate Digital Fairness Act targeting addictive design features. ec.europa.eu/commission/p...
ec.europa.eu
EU KIDS Act to restrict social media platforms\' access to children in the EU
Today, the European Commission has adopted the EU KIDS Act to enhance the online safety of children throughout the Union.
034
Reposted by Taiki Oka
hakwan lau @hakwan.bsky.social · 17/09/2026
onlinelibrary.wiley.com/doi/10.1111/... Disturbances of conscious experience are central features of many psychiatric and mental health disorders. Experimental studies of conscious perception are therefore increasingly cited ....
onlinelibrary.wiley.com
Hitting and missing on consciousness
Disturbances of conscious experience are central features of many psychiatric and mental health disorders. Experimental studies of conscious perception are therefore increasingly cited in clinical an....
23612
Taiki Oka @toka-neuro.bsky.social · 17/09/2026
Large-Vessel Venous Signal Confounds Apparent Amygdala Activation in BOLD fMRI www.biorxiv.org/content/10.6...
biorxiv.org
000
Taiki Oka @toka-neuro.bsky.social · 13/09/2026
It's always sus of brain-mental health relationship and they showed its weak association and less reproducibility (again)
010
Taiki Oka @toka-neuro.bsky.social · 13/09/2026
It was super exciting @lcmeeting.bsky.social in Innsbruck!! I got irreplaceable connections and am very happy if I contribute to the community continuously I sincerely appreciate the organisers!!
010
Taiki Oka @toka-neuro.bsky.social · 11/09/2026
A Call For A Mechanistic-Neutral Nomenclature Replacing “Neuromelanin-Sensitive” Imaging osf.io/preprints/ps...
osf.io
OSF
001
Reposted by Taiki Oka
David Soto @dsotob.bsky.social · 08/09/2026
New paper "DecNefSimulator: A Modular, Interpretable Framework for Decoded Neurofeedback Simulation Using Generative Models" @hakwan.bsky.social @meganakpeters.bsky.social @neuroaure.bsky.social doi.org/10.1016/j.ne...
196
Taiki Oka @toka-neuro.bsky.social · 09/09/2026
From today, I will join Locus coeruleus (LC) meeting at Innsbruck. I will also do poster presentation about high quality imaging of LC at 3TMRI on 2nd day.
010
Reposted by Taiki Oka
Alisa Loosen @alisaloosen.bsky.social · 04/09/2026
📣 Out now in Translational Psychiatry 📣 We show a metacognitive paradox in OCD: patients report persistently lower confidence than controls at comparable accuracy, yet their confidence is more sensitive to feedback and tracks a Bayesian observer more closely. www.nature.com/articles/s41... 🧵👇
nature.com
The metacognitive paradox of OCD: confidence is globally reduced but shows increased sensitivity to local evidence - Translational Psychiatry
Translational Psychiatry - The metacognitive paradox of OCD: confidence is globally reduced but shows increased sensitivity to local evidence
12510
Reposted by Taiki Oka
Tricia Seow @seowxft.bsky.social · 03/09/2026
🎈 Happy to announce that I was awarded the ERC StG for my project CHASM-Meta which will aim to close the chasm (👀) between our understanding of neurocognitive and clinical metacognition, and its role in mental health. Lots to look forward to in this space 🚀
9537
Reposted by Taiki Oka
bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 03/09/2026
Neural signatures of spontaneous transitions between internal and external thought www.biorxiv.org/content/10.64898/20…
084
Taiki Oka @toka-neuro.bsky.social · 03/09/2026
1/7 Excited to share our new @elife.bsky.social Reviewed Preprint! 🧠 How do higher-order cognitive processes like abstraction & metacognition map onto transdiagnostic mental health dimensions? We combined computational modeling of a RL task with symptom profiling 🔗 doi.org/10.7554/eLif...
doi.org
Mapping abstraction and metacognition onto distinct transdiagnostic symptom profiles
11610
Reposted by Taiki Oka
bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 02/09/2026
Feature-based valuation and its impairment in people with compulsive and addictive symptoms www.biorxiv.org/content/10.64898/20…
021
Taiki Oka @toka-neuro.bsky.social · 02/09/2026
www.biorxiv.org/content/10.6... Interesting study combining neuroimaging and EMA, which we might need to pursue further.
biorxiv.org
Stronger brain responses to acute stress reflect greater everyday stress variability
Laboratory stress tasks are widely used to assess individual differences in acute stress reactivity, yet it remains unclear how these responses correspond to stress experienced in everyday life. Here,...
020
Reposted by Taiki Oka
Russ Poldrack @russpoldrack.org · 01/09/2026
This is seriously one of the most bizarre PubPeer discussions I have ever seen. pubpeer.com/publications... h/t @deevybee.bsky.social
urldefense.com
PubPeer - Connectome-based prediction and representational fingerprint...
There are comments on PubPeer for publication: Connectome-based prediction and representational fingerprinting of reading across the lifespan: Neural and oculomotor evidence from monolingual and bilin...
3246
Taiki Oka @toka-neuro.bsky.social · 01/09/2026
link.springer.com/article/10.1...
link.springer.com
Beyond ‘behavioral addiction’: terminology, risk perception, and non-substance addictive disorders in the digital age - Journal of Public Health Policy
In the digital age, addiction terminology shapes understanding, risk perception, and policy response. The label ‘behavioral addiction’ may be imprecise because substance-related addictions are also ex...
000
Reposted by Taiki Oka
Paul Taylor @afni-pt.bsky.social · 31/08/2026
Have you ever felt like something was missing from your #fmri results? Have you been worried about potential reproducibility issues? Well, this new @natmethods.nature.com article with 40+ coauthors shows how the simple change to transparent thresholding helps both. Go Figure! rdcu.be/B4tikBETdQZa
A comparison of old and new thresholding approaches for fMRI data. The newer, transparent thresholding allows for interpreting context, more complete modeling, a reduction of biases and an increase in meaningful content. This all leads to more accurate interpretations and improved reproducibility evaluations.
19151
Reposted by Taiki Oka
tor @torwager.bsky.social · 01/09/2026
42 new #fmri tutorials to accompany our new book Elements of fMRI, with @fMRIstats. Run code in both #python and #matlab in your browser to explore. 7 sections, from conceptual foundations to machine learning and AI. torwager.github.io/elements-of-...
torwager.github.io
Elements of fMRI Analysis — Interactive Tutorials
Hands-on tutorials for the book Elements of fMRI Analysis: runnable MATLAB and Python code, thought questions, and self-quizzes for all 42 chapters.
17229
Reposted by Taiki Oka
Dirk Gütlin @gutlin.bsky.social · 26/08/2026
Ongoing thoughts at rest reflect functional brain organization and behaviour www.nature.com/articles/s41...
nature.com
Ongoing thoughts at rest reflect functional brain organization and behaviour - Nature Human Behaviour
Ke et al. show that the resting brain is not idle: spontaneous thoughts can be decoded from brain network dynamics, helping explain why resting functional brain organization relates to everyday cognit...
063
Reposted by Taiki Oka
Dan Larremore @danlarremore.bsky.social · 25/08/2026
🎉 New paper (and data) on editorial & peer review at Science and Science Advances, two elite general science journals. With a wonderful team! @samzhang.bsky.social, @nicklaberge.bsky.social, Quinten and @aaronclauset.bsky.social. 1/ www.science.org/doi/full/10....
Screenshot of the title page: 

Elite general science journals shape scientific discourse, public policy, and scientific careers. However, expectations of confidentiality in most editorial proceedings has limited efforts to understand and improve the review process. Here, we describe and release deidentified data on 110,303 manuscript submissions over 5 years at Science and Science Advances, two elite general science journals. Analyzing evaluation dynamics across the initial editorial review and subsequent peer review stages, we find strong selective effects associated with higher institutional prestige, larger team size, and certain topics and countries. Corresponding authors who are men exhibit a small but significant advantage at Science, while authors based in China have a significant disadvantage. These associations are generally stronger in editorial review than in peer review, even as final editorial decisions correlate strongly with reviewer advice. These patterns highlight the complexity of multistage evaluations at elite journals and the importance of open data to better understand them.
39439
Reposted by Taiki Oka
Neuroskeptic @neuroskeptic.bsky.social · 23/08/2026
It's possible to decode which movie someone was watching just from the *post-movie* resting state fMRI. This is because the voxels active during the movie are persistently deactivated afterwards! www.biorxiv.org/content/10.6... What goes up must come down...
2359
Reposted by Taiki Oka
PsyArXivBot @psyarxivbot.bsky.social · 22/08/2026
Improving Brain-Behaviour Causality with Neurofeedback: osf.io/udyg6
061
Taiki Oka @toka-neuro.bsky.social · 22/08/2026
link.springer.com/article/10.1... “Controlled by the game”– interviews on why regaining control over gaming is difficult for patients with gaming disorder
link.springer.com
“Controlled by the game”– interviews on why regaining control over gaming is difficult for patients with gaming disorder - BMC Psychology
Background Research on gaming disorder has grown substantially over the past two decades, but few studies have used qualitative methods. The focus on quantitative studies risks overlooking nuances of ...
000
Taiki Oka @toka-neuro.bsky.social · 22/08/2026
direct.mit.edu/imag/article... Decision processes underlying effort avoidance and their relationship with metacognition
direct.mit.edu
Decision processes underlying effort avoidance and their relationship with metacognition
Abstract. Effort-based decision making relies on cost–benefit computations that require individuals to evaluate expected rewards against the effort needed to obtain them. However, the temporal dynamic...
000
Reposted by Taiki Oka
Veera Ruuskanen @veerahelmisofia.bsky.social · 20/08/2026
Super excited to see our review out in TiCS! Here me & @cogsci.nl present the first comprehensive framework of the mechanisms driving relationships between spontaneous pupil-size fluctuations, neural activity, and behavior 👀🧠👩🏻‍💻 Spoiler: arousal is only one of at least four 😶‍🌫️ doi.org/10.1016/j.ti...
doi.org
Redirecting
16422
Reposted by Taiki Oka
Sam Gershman @gershbrain.bsky.social · 18/08/2026
@arthurpr4t.bsky.social has a new preprint with important results on a famous psychophysical law (Weber's law). It isn't, in fact, a law, because it can be broken. A more fundamental principle (efficient coding) shows when and why Weber's law holds true. www.biorxiv.org/content/10.6...
biorxiv.org
Efficient coding makes and breaks Weber's law
Weber's law is a rare quantitative regularity in psychology, yet its origins remain debated. Here we provide causal evidence that it arises from the more fundamental principle of efficient coding. Thi...
413041
Reposted by Taiki Oka
kenzakdr.bsky.social @kenzakdr.bsky.social · 18/08/2026
1/6 New preprint! 🧵 How do we decide to decide? With @aleyamarzuki.bsky.social we showed that the interplay between urgency, evidence accumulation, and prediction errors converges in the dmPFC, into one signal: keep gathering information, or stop and commit to a choice. doi.org/10.64898/202...
doi.org
1178
Reposted by Taiki Oka
Liron Rozenkrantz @lironrozenkrantz.bsky.social · 17/08/2026
🔥🔥New paper alert! Super excited to share our paper, out today in @nathumbehav.nature.com, led by the wonderful Dr. Nofar Mizrachi! nature.com/articles/s41... To me, this finding fundamentally changes how we should think about the relationship between cognition and immune regulation:
nature.com
Voluntary attention regulates acute immune responses in humans - Nature Human Behaviour
Mizrachi et al. show that directing attention to bodily sensations, rather than away, promotes more regulated acute inflammatory responses in healthy volunteers, revealing sensory and vagal pathways l...
39747
Reposted by Taiki Oka
bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 17/08/2026
Dorsomedial prefrontal cortex acts as an integrative hub during information gathering www.biorxiv.org/content/10.64898/20…
041
Reposted by Taiki Oka
Janel Le Belle @janellebelle.bsky.social · 15/08/2026
Why no mention of the published paper that refutes the “40%” paper? elifesciences.org/reviewed-pre... They re-examined the data from the original Technical University of Munich (Epp et al.) paper & found that the calculation of metabolic rates (CMRO2) had high
1165
Reposted by Taiki Oka
Eiko Fried @eikofried.bsky.social · 14/08/2026
French court blocks social media ban, arguing it infringes upon freedom of expression and privacy. www.theguardian.com/world/2026/a...
theguardian.com
French court blocks Macron’s social media ban for under-15s
Constitutional council says curbs infringe freedom of expression and privacy as president vows to rework legislation
064
Taiki Oka @toka-neuro.bsky.social · 14/08/2026
www.science.org/doi/10.1126/...
science.org
A thalamocortical circuit encoding deviations from sensory history
Prior expectations guide attention and support perceptual filtering during decision-making. In mice performing a visual discrimination task, choices depended on trial-by-trial differences between cons...
010
Reposted by Taiki Oka
Leya @aleyamarzuki.bsky.social · 14/08/2026
📢 Our paper is now out in @natcomms.nature.com! www.nature.com/articles/s41... We know that symptoms of OCD fluctuate substantially. But what are the exact conditions that precede symptom escalations? We found evidence for metacognitive processes being a key antecedent. 1/
nature.com
Drops in confidence precede symptoms of obsessive-compulsive disorder - Nature Communications
To devise effective interventions for obsessive-compulsive disorder, it is crucial to understand antecedents to symptom emergence. Here, the authors show evidence for self- and decision making underco...
12512
Taiki Oka @toka-neuro.bsky.social · 09/08/2026
arxiv.org/abs/2607.29093 metasignal: A Python Package for Comprehensive Metacognitive Analysis and Decision-Making
arxiv.org
metasignal: A Python Package for Comprehensive Metacognitive Analysis and Decision-Making
Metasignal is an open-source Python package for signal detection theory (SDT) and metacognitive measurement. It implements the 17 metacognitive measures evaluated by Rahnev (2025), together with the r...
020