🔎Updated preprint "Humans use a dual policy to improve inferences during epistemic information seeking" by Yinan Cao, Clémence Alméras, Junseok Lee, Inès Maye, and Valentin Wyart. www.biorxiv.org/content/10.1...
New paper alert 📣 #Neuroskyence
"Rhythmic sampling of multiple decision alternatives in the human brain" @natcomms.nature.com
together with @ycaoneuro.bsky.social @maryamtohidi.bsky.social @donnerlab.bsky.social @ktsetsos.bsky.social
www.nature.com/articles/s41...
🧵1/
Are you sure there’s no mosquito in the room?
With @matanmazor.bsky.social, Chichi Dézier, @nfaivre.bsky.social & Louise Goupil, we study how we combine multiple sensory sources to be confident in presence and absence: While detection rely on one modality, confidence requires both channels to align!
#PhiMiSci published a new article in the special issue on structuralism: “Neurophenomenal structuralism and the role of computational context” by M. Paßler and A. Doerig.
It aims to challenges local structuralist theories that overlook the content-constituting role of computational context.
🥳Our review of intracranial EEG research on the neural correlates of consciousness is out in eLife: elifesciences.org/reviewed-pre...! We think these methods offer a unique window on consciousness!🧠 A thread 👇
Glad to share my first paper in postdoc! This was a huge undertaking by many people over the years. I hope you read it! But the short version is this: ACC integrates evidence from self experience and observed experience, and it weighs these sources differently by aligning readout more to the self.
An illustration of how human perceptual segmentation and integration (PSI) of natural stimuli and image segmentation algorithms can be bridged.
Are we ready to tackle perceptual segmentation of natural scenes?
Finally the review on perceptual segmentation you’ve been waiting for!
www.sciencedirect.com/science/arti...
Happy New year! Warm wishes to you all.
Sharing a recent paper in which we compared bodily and external agency using behavioral & EEG data.
Behavior looked similar across conditions, but Mratio did not correlate and neural signals differed — distinct processes?
www.eneuro.org/content/earl...
These patterns are consistent with our previous findings using high-level expectations. But here, the prior is naturally formed, and participants are unaware of it. Such an implicit metacognitive bias may help drive us towards self-consistency and prediction error minimisation. Check it out! 5/5
The winning model suggests confidence to use the degree of prior-congruent evidence as an additional cue, over and above the posterior evidence used in the perceptual decision. This points to a confirmatory confidence bias - confidence favors evidence congruent with our prior beliefs! 4/5
Comparing these revealed a confidence bias towards the condition in which the prior drives decisions, even once performance differences were accounted for. We then built and tested several computational models that might capture this confidence-performance dissociation. 3/5
We explored this using a prior that naturally impacts motion perception: the slow-motion prior. Using stimuli whose perceived motion direction is biased by this prior, we built two conditions. In one (Bias), the prior influences perceptual decision rates, and in the other (No-Bias), it does not. 2/5
🎉 Excited to share this! Low-level, naturally formed priors influence our perceptual inferences, but do they impact our confidence in the same way? With @elifilevich.bsky.social and @mamassian.bsky.social we found: they influence confidence even more strongly! More👇 1/5
dx.plos.org/10.1371/jour...
Our #sEEG study is now published in Nature Communications: rdcu.be/eIkoG! 🧠
Key finding: We discovered neural evidence accumulation for visual perception that's independent of report preparation—recorded from >3000 channels across 3 experiments!
#Neuroscience #Consciousness #OpenAccess
A scientific image showing an original image (grayscale dog), the same image after processing with oriented edge filters, and then the spectral power as a function of orientation.
New from my lab: "Priors for natural image statistics inform confidence in perceptual decisions"
We used a natural image statistics approach to investigate the computations underlying perceptual confidence. 🧵
Article: www.sciencedirect.com/science/arti...
Thrilled to share a new preprint on Neurophenomenal Structuralism (NPS) by @adriendoerig.bsky.social & myself! We show why neural structures alone aren’t enough to capture conscious contents. We must consider computational context! (arxiv.org/abs/2412.20873). A Thread (1/15):
🎉 Excited that our latest paper, on touch and agency with @elifilevich.bsky.social and Anthony Ciston is now published in JEP:Genl!! 🚀
Check it out, share with your network, and reach out with any questions or feedback.
We can't wait to hear your thoughts 🙌📚
psycnet.apa.org/doiLanding?d...
Fresh off the press: rdcu.be/dLYz8
Distinct basal ganglia contributions to learning from implicit and explicit value signals in perceptual decision-making
With Andrea Pisauro and Marios Philiastides @ccniuofg.bsky.social
Confidence is used for learning even when explicit feedback is provided
Excited to share our latest work with
Itay Yaron, Dan Biderman, Natalie Biderman,
Rotem Bennet, Meir Plotnik and @liadmudrik.bsky.social
introducing a multi-trial IB paradigm in virtual reality ✨ 🥽 doi.org/10.3758/s13428-024-02401-8 all the materials are open access here >> osf.io/648bp/
Is there a (reverse) hierarchy in perceptual metacognition? If you want to know, check this collaborative work with @tarrynbalsdon.bsky.social and V. Wyart.
jov.arvojournals.org/article.aspx...
#visionscience
Lots of Oliver's blood sweat and tears in this new preprint. We found BOLD signals reflecting predicted-but-omitted shapes in the CA23 and pre/para-subiculum subfields of the hippocampus, as well as the parahippocampal cortex. #neuroskyence #compneurosky 1/2
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/...
A causal manipulation of prior beliefs influences the confidence we have in our decisions! Very excited to see this paper work published in Psychological Science. Get the final paper here: pubmed.ncbi.nlm.nih.gov/38427319/
#AcademicSky #PsychSciSky #Neuroscience #Neuroskyence
Will I see something, and if so, what will it be? I am excited to share my very first paper, in collaboration with @jhaarsma.bsky.social , @smfleming.bsky.social and @peterkok.bsky.social. 🧵www.biorxiv.org/content/10.1101/2024.02....
