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Reposted by François Stockart

Randolph Helfrich @randolph-helfrich.bsky.social · 2d

New position, new social media account. After 5 fantastic years in Tuebingen, I moved to @yale.edu and the @wutsaiyale.bsky.social this summer - which means that I’ll be recruiting PhD students and postdocs. Please help me to spread the word and see current opportunities below 👇

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François Stockart @francoisstock.bsky.social · 8d

The call for commentaries on our BBS paper is out now (deadline October 15): shorturl.at/Hu3Yu. In the paper (shorturl.at/4Rbk6), we provide recommendations and outstanding issues about designing experimental paradigms, analyzing data, and reporting the results of studies on unconscious processing 👇

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Reposted by François Stockart

Patxi Elosegi @patxelos.bsky.social · 10d

1/Preprint Alert🔔: Across two experiments plus a computational model, we show the visual system compresses complex scenes into summary statistics that can guide behavior without conscious access to the task-defining features. We term this the Ensemble Blindsight effect.

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Reposted by François Stockart

Nathan Faivre @nfaivre.bsky.social · 9d

Two recent #sEEG studies worth checking out if you're interested in evidence accumulation, #consciousness and #metacognition:

www.nature.com/articles/s41...
www.nature.com/articles/s41...

With @francoisstock.bsky.social, Dorian Goueytes, @meaperei.bsky.social, and many others!

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François Stockart @francoisstock.bsky.social · 9d

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

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Reposted by François Stockart

Liad Mudrik @liadmudrik.bsky.social · 13d

BBS just issued the call for commentaries, and we would LOVE to get yours!! The deadline is October 15th, and the reference number is BBS-D-24-00489R2. Looking forward to hearing what you think about our suggestions for how to study unconscious processes!

Maor Schreiber @maorschreiber.bsky.social · Jul 29

📢Excited to share our paper, "Studying unconscious processing: Contention and consensus", published in BBS.
The paper is the result of a collaborative effort of 32 leading researchers in the field, from 10 different countries🌏

Check out the full ms👇
www.cambridge.org/core/journal...

Studying unconscious processing: Contention and consensus | Behavioral and Brain Sciences | Cambridge Core

Studying unconscious processing: Contention and consensus

www.cambridge.org

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François Stockart @francoisstock.bsky.social · Jul 29

Our paper about contention and consensus in unconscious processing research is now out in Behavioral and Brain Sciences. Check out Maor's thread! Please consider sending a comment, we are interested to continue this discussion 🤓

Maor Schreiber @maorschreiber.bsky.social · Jul 29

📢Excited to share our paper, "Studying unconscious processing: Contention and consensus", published in BBS.
The paper is the result of a collaborative effort of 32 leading researchers in the field, from 10 different countries🌏

Check out the full ms👇
www.cambridge.org/core/journal...

Studying unconscious processing: Contention and consensus | Behavioral and Brain Sciences | Cambridge Core

Studying unconscious processing: Contention and consensus

www.cambridge.org

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François Stockart @francoisstock.bsky.social · Jun 16

The event is hosted on Topia (topia.io) and free of charge (thanks to generous support from ASSC). But note that the number of participants is limited, so don’t wait to register. See you on July 3!
@liadmudrik.bsky.social
@luciecharlesneuro.bsky.social
@cam-signorelli.bsky.social

Topia - Real-Time Interactive Spatial Communication Engine

Build, deploy, and customize real-time social experiences inside accessible virtual worlds. Bring people together to work, learn, and collaborate. Free to start

topia.io

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François Stockart @francoisstock.bsky.social · Jun 16

The event will take around 2.5 hours. In the first phase, participants will be assigned to private rooms in pairs and have 5 minutes to introduce themselves before rotating. In a second phase, all participants will gather in a public space structured to enable small-group discussions 🤓

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François Stockart @francoisstock.bsky.social · Jun 16

Are you an early-career ASSC member who wants to meet peers interested in consciousness ahead of the @assc28.bsky.social conference? The @ASSC Community Building Committee has the right event for you! Join us for an online ice-breaking event on July 3. Sign up here before June 25: tally.so/r/3qMyQk

ASSC Ice-Breaking Event

Made with Tally, the simplest way to create forms.

tally.so

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Reposted by François Stockart

Michael Pereira @meaperei.bsky.social · Jun 1

New “version of record” in @elife.bsky.social! ‬

We recorded neurons in the thalamus and subthalamic nucleus of humans and found both sensory- and perception-selective neurons with two distinct latencies!

7-year project with @nfaivre.bsky.social + @foscobernasconi.bsky.social.

A short thread 👇

Subcortical correlates of consciousness with human single neuron recordings

Subcortical brain structures contain neurons encoding subjective reports of stimulus detection in human participants, suggesting a role for conscious perception.

elifesciences.org

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Reposted by François Stockart

Amir Tal @amirtal.bsky.social · May 27

Hi Bluesky!

I want to let you know about a cool new paper I had the honor of being a part of:

Semantic priming modulates the strength and direction of the Kanizsa illusion

rdcu.be/en0JZ

Semantic priming modulates the strength and direction of the Kanizsa illusion

Communications Psychology - This study demonstrates that semantic priming can either increase or decrease perception of the Kanizsa illusion. The results support cognitive penetrability,...

rdcu.be

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Reposted by François Stockart

Nathan Faivre @nfaivre.bsky.social · Mar 19

Through thick and thin, the ultra-resilient Ramla Msheik completed the main study of her PhD, which supports leaky evidence accumulation as a computational mechanism underlying perceptual confidence and subjective duration. Check it out!

www.biorxiv.org/content/10.1...

Leaky evidence accumulation accounts for perceptual confidence and subjective duration

Perceptual consciousness is defined as the subjective experience associated with the processing of sensory cues from the environment. Subjective experience unfolds over time and is accompanied by a se...

www.biorxiv.org

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François Stockart @francoisstock.bsky.social · Jan 29

Excited to see this out 🥳 Come check out the website and explore studies of unconscious processing!

Maor Schreiber @maorschreiber.bsky.social · Jan 29

Our UnconTrust database for studies of unconscious processing is now officially launched in an interactive website here: uncontrustdb.tau.ac.il
And a paper describing the process and validation is now published in “Scientific Data”: doi.org/10.1038/s415...

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Reposted by François Stockart

Maor Schreiber @maorschreiber.bsky.social · Jan 29

Our UnconTrust database for studies of unconscious processing is now officially launched in an interactive website here: uncontrustdb.tau.ac.il
And a paper describing the process and validation is now published in “Scientific Data”: doi.org/10.1038/s415...

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Reposted by François Stockart

Nathan Faivre @nfaivre.bsky.social · Mar 31

... and this is our new contribution to #metacognition research, this time showing a functional overlap between evidence accumulation, confidence, and changes of mind using sEEG:
www.biorxiv.org/content/10.1...

Brilliantly led by Dorian Goueytes, + @meaperei.bsky.social and many others!

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François Stockart @francoisstock.bsky.social · Mar 27

Thanks!

François Stockart @francoisstock.bsky.social · Mar 26

I want to thank my supervisors (@nfaivre.bsky.social and @meaperei.bsky.social) for their constant help and support, as well all co-authors (including @liadmudrik.bsky.social ) and all the people in Grenoble and Brno without which this project would never have been possible!

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François Stockart @francoisstock.bsky.social · Mar 26

We conclude that our results provide support for the claim that evidence accumulation processes occur beyond decision-making and can explain at least different facets of perceptual experience. This view entails that conscious access can occur at varying latencies.

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François Stockart @francoisstock.bsky.social · Mar 26

Finally, Ramla Msheik ran model simulations based on a leaky evidence accumulation process and reproduced the results observed in the ventral visual cortex, indicating that this regions might be implementing leaky evidence accumulation for perceptual experience!

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François Stockart @francoisstock.bsky.social · Mar 26

Decoders in the ventral visual cortex also reflected non-veridical percepts, when participants reported seeing a face when none was presented or reported seeing more than one face when only one was presented.

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François Stockart @francoisstock.bsky.social · Mar 26

To assess if the same neural code underlies all these responses, we tested if a multivariate decoder trained on immediate detection could reflect evidence accumulation, delayed detection and confidence, and passive perception. We found such signatures in the ventral visual cortex.

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François Stockart @francoisstock.bsky.social · Mar 26

Additionally, we asked participants to report confidence in their detection in the delayed-response experiment. In several regions including the ventral visual cortex, the HGA was modulated by perceptual confidence independent of stimulus intensity.

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François Stockart @francoisstock.bsky.social · Mar 26

The results at the region level seemed to be mostly driven by channels located in the mid-fusiform gyrus, consistent with the location of the fusiform face area.

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François Stockart @francoisstock.bsky.social · Mar 26

Looking at pre-registered regions of interest, the ventral visual cortex was the only region that was found to (1) accumulate evidence, (2) reflect detection and (3) respond to stimulus intensity during passive perception.

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