Sign in

Matthieu Chidharom

@matthieu-mx.bsky.social
123 followers 140 following 29 posts

Junior Group Leader MInD Group - Motivation, Inattention & Distraction Inserm - University of Strasbourg 🇫🇷 🇪🇺

PostsRepliesMedia
Reposted by Matthieu Chidharom
Anna Corriveau @annacorriveau.bsky.social · 28/09/2026
New preprint! Are attentional lapses the result of disengagement or simply response failure? Using EEG, we tested how attention fluctuations impact visual representations in the brain. (1/5) www.biorxiv.org/content/10.6...
biorxiv.org
Degraded neural representations foreshadow failures of sustained attention
Attention prioritizes relevant information from the environment, but does not do so consistently over time. Instead, we sometimes experience poor attentional states which are characterized by a higher...
56329
Reposted by Matthieu Chidharom
Heleen Slagter @haslagter.bsky.social · 19/08/2026
PhD position (4 years, paid) on an NWO-funded project on the Role of Foveal Processing in Spatial Attention at Vrije Universiteit Amsterdam, the Netherlands, supervised by Dr. Mieke Donk (main PI) and me! For more information: workingat.vu.nl/vacancies/ph...
workingat.vu.nl
Vacancy — PhD position (4 years) on the Role of Foveal Processing in Spatial Attention
Are you interested in understanding how attention shapes what we see? Would you like to combine behavioural experiments, psychophysics, and eye tracking to uncover how the brain selects and prioritise...
03934
Reposted by Matthieu Chidharom
Akram Bakkour @akrambakkour.bsky.social · 08/08/2026
📢New paper out today in @cognitionjournal.bsky.social led by Seoyoung Lee! Does reward spread across multiple links in memory organized in a cognitive graph? Yes! We see graded spread through a recalled (even if incorrect) learned graph. Reward preserves proximal structure to support decisions.
authors.elsevier.com
Reward selectively preserves relational structure in memory
Memories tend to form networks that reflect relationships between experiences. These networks, or cognitive graphs, have been used to study how struct…
04014
Reposted by Matthieu Chidharom
Yuan Chang Leong @ycleong.bsky.social · 30/07/2026
Thank you for this feature! I'm admittedly awkward on video, but I really enjoyed working on the spotlight piece and taking a bigger picture view of my research trajectory!
0277
Matthieu Chidharom @matthieu-mx.bsky.social · 17/07/2026
🚨📢 Paper alert! Our new paper is out in AP&P! We show that sustaining attention on both rewards and penalties is more effective than focusing on penalties alone—a first step toward a Goal-Competition Theory. @monicarosenb.bsky.social @edvogel.bsky.social link.springer.com/article/10.3...
link.springer.com
Not all benefits are equal: Incentives to seek reward and avoid penalty improve sustained attention in continuous performance tasks - Attention, Perception, & Psychophysics
Abstract Sustained attention is notoriously difficult to maintain over time, with attentional lapses emerging rapidly during prolonged tasks. Motivation has been identified as a key factor in reducing...
071
Reposted by Matthieu Chidharom
Matthew Robison @matthewrobison.bsky.social · 15/07/2026
Cognitive position: apply.interfolio.com/189577
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
112
Reposted by Matthieu Chidharom
Tobias Egner @tobiasegner.bsky.social · 15/07/2026
New paper out: Led by super grad student Jim Zhang and in collaboration with Greg Cogan, we review and synthesize Insights into the neural mechanisms supporting cognitive stability and flexibility from human intracranial electroencephalography. For free access: authors.elsevier.com/a/1nRYWY3M3p...
03313
Matthieu Chidharom @matthieu-mx.bsky.social · 13/07/2026
👉 Follow the MInD Research Group for updates: @inserm1329-mind.bsky.social
020
Matthieu Chidharom @matthieu-mx.bsky.social · 13/07/2026
I’m very grateful to my advisors, Nancy Carlisle, @monicarosenb.bsky.social , and @edvogel.bsky.social. I learned so much!
121
Matthieu Chidharom @matthieu-mx.bsky.social · 13/07/2026
After five years in the US 🇺🇸, I'll soon be returning to my hometown of Strasbourg, where I'll join INSERM as a tenure-track Junior Group Leader and launch the MInD (Motivation, Inattention & Distraction) Research Group. 🇫🇷🇪🇺 Two graduate positions available: matthieuchidharom.wixsite.com/mind
13615
Reposted by Matthieu Chidharom
Monica Rosenberg @monicarosenb.bsky.social · 07/07/2026
Looking forward to hosting this discussion with @ulrikebasten.bsky.social! www.jneurosci.org/content/46/2...
jneurosci.org
Positive Bias in Value-Based Decision Making: Neurocognitive Associations with Resilience
Biased information processing plays an important role in mental disorders. This study investigates choice biases in value-based decision making and how links to psychological resilience are related to...
173
Reposted by Matthieu Chidharom
Igor Utochkin @utochkin.bsky.social · 01/07/2026
In a new preprint, @keisukefukuda.bsky.social and I investigated stimulus-specific memorability with ROC analysis. We find that the variability of latent memory effects (familiarity) caused by individual memory items across people is a game-changing dimension of memorability osf.io/c62an/files/...
0249
Reposted by Matthieu Chidharom
Eren Günseli @erengunseli.bsky.social · 18/06/2026
I am looking for a postdoctoral researcher to join my lab at Sabancı University in Istanbul for a 2-year TÜBİTAK-funded position, with possible extension. Interested candidates can email me with a CV and a brief note about their research interests. More details on gunselilab.com soon.
gunselilab.com
Memory, Attention, & Cognitive Control Lab | Istanbul | Sabanci Uni.
Memory, Attention, & Cognitive Control Lab at Sabancı University - Eren Günseli. We study how memory and attention interact, how humans control what to remember, what to forget, what to attend to, and...
14946
Reposted by Matthieu Chidharom
Scott Marek @smarek0502.bsky.social · 11/06/2026
What matters most for childhood brain organization? We analyzed 649 variables. The answer: Socioeconomics (SES); with brain patterns pointing at sleep & stress as drivers. Even brain-IQ associations were better explained by SES. In Science today: www.science.org/doi/10.1126/...
6319169
Matthieu Chidharom @matthieu-mx.bsky.social · 10/06/2026
Congrats Damian!! Welcome to the team 🙌
110
Matthieu Chidharom @matthieu-mx.bsky.social · 28/05/2026
Another interesting question is whether distraction can sometimes be beneficial. I’m curious whether you guys found any positive subjective reports about digital technology, or whether the methods are somehow biased toward identifying negative outcomes only.
200
Matthieu Chidharom @matthieu-mx.bsky.social · 28/05/2026
Very interesting! Glad you got converted to sustained attention research! 😈
200
Reposted by Matthieu Chidharom
William Ngiam | 严祥全 @williamngiam.github.io · 28/05/2026
There's ongoing discourse about whether digital technology is impacting attention spans, but the empirical research does not seem to connect with what is felt by the general public. So, to better understand the perceptions, we examined what was being said on the issue in four relevant subreddits.
2186
Matthieu Chidharom @matthieu-mx.bsky.social · 27/05/2026
You got Luck(y), for sure! 🕶️
010
Matthieu Chidharom @matthieu-mx.bsky.social · 25/05/2026
Steeven is great! 🙌
110
Reposted by Matthieu Chidharom
Brecken Marome @breckenmarome.bsky.social · 22/05/2026
Excited to share my poster that I presented at VSS! It was great to see everyone's recent research and I'm already looking forward to next year.
051
Matthieu Chidharom @matthieu-mx.bsky.social · 23/05/2026
Congrats again ! ✨
010
Matthieu Chidharom @matthieu-mx.bsky.social · 22/05/2026
Congratulations !
010
Matthieu Chidharom @matthieu-mx.bsky.social · 20/05/2026
🧠🎶 Letting participants choose their own music during the SART appears to reduce vigilance decline. journals.sagepub.com/doi/full/10....
042
Reposted by Matthieu Chidharom
Darius Suplica @dsuplica.bsky.social · 19/05/2026
Check out my poster at #VSS2026 in banyan breezeway tomorrow afternoon! We find that stimulus memorability parameters (hit and FA rate) robustly affect performance in a task with no recognition memory requirements (visual search with trial-unique images). With @utochkin.bsky.social and Ed Awh
0133
Reposted by Matthieu Chidharom
Igor Utochkin @utochkin.bsky.social · 16/05/2026
If you are at #VSS2026 check out our poster 36.320 in the Sunday afternoon session. I'll tell what we learned about the neural signatures of stimulus memorability from EEG decoding in a large visual memory dataset In collaboration w/Leo Chang, Ed Vogel (@edvogel.bsky.social), and Ed Awh
0164
Reposted by Matthieu Chidharom
Matthieu Chidharom @matthieu-mx.bsky.social · 15/05/2026
@vssmtg.bsky.social l | Distracted during talks? Maybe your brain has better things to do. 🌊☀️🍹🏖️ Sunday, May 17, 9:30am, Talk Room 1 — I’ll present our new goal-competition theory with @monicarosenb.bsky.social and @edvogel.bsky.social.
0165
Reposted by Matthieu Chidharom
#EEGManyLabs @eegmanylabs.bsky.social · 15/05/2026
New #EEGManyLabs paper out in Cortex! We asked whether contralateral delay activity, or CDA, can serve as a reliable EEG marker of visual working memory capacity. doi.org/10.1016/j.co...
doi.org
Redirecting
12815
Matthieu Chidharom @matthieu-mx.bsky.social · 15/05/2026
@vssmtg.bsky.social l | Distracted during talks? Maybe your brain has better things to do. 🌊☀️🍹🏖️ Sunday, May 17, 9:30am, Talk Room 1 — I’ll present our new goal-competition theory with @monicarosenb.bsky.social and @edvogel.bsky.social.
0165
Matthieu Chidharom @matthieu-mx.bsky.social · 11/05/2026
Maintaining Performance Without Reducing Mind-Wandering: Exploring the Impact of Short Breaks during Sustained Attention Tasks osf.io/preprints/ps...
osf.io
OSF
020
Reposted by Matthieu Chidharom
Damian Koevoet @dkoevoet.bsky.social · 05/05/2026
Past experiences shape current selection. But when and how strong are past and present targets represented in the brain? In our newest paper, we show that past and present search targets are concurrently represented in the brain. Out now in @plosbiology.org doi.org/10.1371/jour... #neuroscience
doi.org
Past and present goals are represented concurrently during visual search
Past experience and our current goals guide what information to focus on. But how and when does the brain represent the past and the present? This new study shows that the brain represents the past an...
16121
Matthieu Chidharom @matthieu-mx.bsky.social · 31/10/2025
2/ Preprint here: osf.io/preprints/ps...
osf.io
OSF
030
Matthieu Chidharom @matthieu-mx.bsky.social · 31/10/2025
1/ To reduce distraction and boost focus, nothing works better than linking performance to rewards 💰 But what about focusing to avoid penalties? Turns out — it works too… just not as much as combining both! Check out our new preprint 👇 w/ Ed Vogel and @monicarosenb.bsky.social
Representation of goal activation in working memory as a function of participant motivation. According to the goal competition hypothesis, goal activation in working memory is influenced not only by cognitive control but also by the level of associated benefits. A goal with little or no benefit (neutral) will be weakly activated in working memory compared to conditions involving incentives (penalty avoidance, reward seeking, or the combination of both). It can be assumed that the combination of reward and penalty leads to stronger goal activation than penalty alone, potentially explaining the higher number of no-go errors observed in the penalty-only condition.
1184
Reposted by Matthieu Chidharom
The Picower Institute for Learning and Memory at MIT @picowerinstitute.bsky.social · 31/10/2025
To get back on track after a distraction, the brain appears to employ a rotating traveling wave, a new study by the lab of @earlkmiller.bsky.social finds. picower.mit.edu/news/after-d... @mitbcs.bsky.social #neuroscience #cognition
picower.mit.edu
After distractions, rotating brain waves may help thought circle back to the task
To get back on track after a distraction, the cortex appears to employ a rotating traveling wave, a new study by MIT neuroscientists finds.
1244
Reposted by Matthieu Chidharom
CNS 2027 Annual Meeting @cnsmtg.bsky.social · 29/10/2025
🏆 #CNS2026 Young Investigator Award Winners 🏆 Congratulations to Monica Rosenberg and Samuel D. McDougle, recipients of the 2026 Young Investigator Award! 🎉 We look forward to their award lectures at the CNS 2026 Annual Meeting in Vancouver, BC, Canada! 🇨🇦✨ @cogneuronews.bsky.social
04812
Reposted by Matthieu Chidharom
Debbie Yee @debyee.bsky.social · 20/10/2025
Thrilled to share our new preprint highlighting distinct neurocomputational mechanisms underlying how reward and punishment determine adaptive cognitive control - a massive fMRI study and collaborative team effort with the @shenhavlab.bsky.social 🧠 Link here: www.biorxiv.org/content/10.1...
biorxiv.org
Neurocomputational mechanisms underlying the distinct motivational influences of reward and punishment on cognitive control
Human motivation is fundamentally shaped by one's expectations of the reward they could earn for good performance or the punishment they would avoid for poor performance. However, the extent to which ...
04419
Reposted by Matthieu Chidharom
Thomas Andrillon @thomasandrillon.bsky.social · 16/10/2025
Check out our new preprint: www.biorxiv.org/content/10.1... And Paris' thread (@parboulakis.bsky.social): bsky.app/profile/parb... Where we explore the neural signature of mind blanking using EEG and fMRI combined!
biorxiv.org
Distinct cortical profiles underlie the common reportability of thought-free experiences
Mind blanking (MB) is a mental state of seemingly no reportable thought content. The question of how we can entertain no thoughts while awake is challenging for the study of spontaneous thinking. By c...
084
Reposted by Matthieu Chidharom
Damian Koevoet @dkoevoet.bsky.social · 14/10/2025
Spatial attention and working memory are popularly thought to be tightly coupled. Yet, distinct neural activity tracks attentional breadth and WM load. In a new paper @jocn.bsky.social, we show that pupil size independently tracks breadth and load. doi.org/10.1162/JOCN...
13615
Reposted by Matthieu Chidharom
Colin Hoy @colinwhoy.bsky.social · 08/10/2025
Ever slam on the brakes after seeing a speed trap? Or better yet, slow down ahead in anticipation? In our new paper w/ @anask07.bsky.social in @cp-iscience.bsky.social, we use #iEEG to study the neural basis of reactive and proactive control in medial and lateral PFC. tinyurl.com/4bbwbffv
64615
Matthieu Chidharom @matthieu-mx.bsky.social · 30/09/2025
In any case, this “bath” does not really seem to affect the efficiency of the decoding for control and selective attention to the relevant stimulus. Maybe the bath affects (or is) the response selection, but I think we will need another task design to test this idea 🚀
010
Matthieu Chidharom @matthieu-mx.bsky.social · 30/09/2025
Maybe what we are decoding is the noise induced by competition between alternative goals—we proposed this idea in another preprint using a task-switch paradigm : osf.io/preprints/ps...
osf.io
OSF
100
Matthieu Chidharom @matthieu-mx.bsky.social · 30/09/2025
The question is: what exactly is it bathing in, beyond an attentional state? Could it be the level of arousal? We have a preprint showing that it’s not really the case: osf.io/preprints/ps...
osf.io
OSF
100
Matthieu Chidharom @matthieu-mx.bsky.social · 30/09/2025
It’s likely that the goal (task-set) directs selective attention toward relevant stimuli and response selection, and that all of this “bathes” in an attentional state of low or high distraction.
100
Matthieu Chidharom @matthieu-mx.bsky.social · 30/09/2025
That’s an excellent question, and modeling the effect could be really useful. If you look at the latency of decoding onset, it is earlier for the task-set than for selective attention.
100
Matthieu Chidharom @matthieu-mx.bsky.social · 30/09/2025
In Figure 4, we found no difference between in- vs. out-task decoding. However, we think participants put more effort into maintaining the (abstract) task during out periods, which leads to more sustained task decoding.
000
Matthieu Chidharom @matthieu-mx.bsky.social · 30/09/2025
We also love the controls in Fig. 3, thanks to the great Henry Jones!! We think that the zone decoding looks evoked probably because we are baselining the data…
100
Matthieu Chidharom @matthieu-mx.bsky.social · 30/09/2025
We have a handgrip in the lab that allows us to measure response force, and I think it could be great to use it to address this question and see vigor difference in- vs out-of-the-zone
100
Matthieu Chidharom @matthieu-mx.bsky.social · 30/09/2025
Thank you for your questions, I love this kind of feedback! It’s possible that we detect some low-level response feature, even if the motor response—pressing the space bar—remains quite simple, and differences in vigor are unlikely.
100
Matthieu Chidharom @matthieu-mx.bsky.social · 30/09/2025
Thanks @benediktehinger.bsky.social for asking! I was initially planning to wait until the paper was accepted before making the code and data public, but why wait? Here’s the OSF link: osf.io/kw2fz/ 🚀
160
Matthieu Chidharom @matthieu-mx.bsky.social · 28/09/2025
3/Preprint here: www.biorxiv.org/content/10.1...
biorxiv.org
Decoding Distraction From the Human Brain: A Unique Neural Signature Beyond Failures of Selective Attention and Control
Distraction is a universal feature of human cognition, yet the reasons why it occurs remain poorly understood. Theories of sustained attention often point to failures of cognitive control in maintaini...
230