Mathieu Landry's Avatar

Mathieu Landry

@matlandry

Cognitive Neuroscience Asst. Prof @ULaval https://sites.google.com/view/neurococon-lab/english

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15.10.2023
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Latest posts by Mathieu Landry @matlandry

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Congratulations @monicarosenb.bsky.social on your Young Investigator Award! Join us now for her #CNS2026 award talk, about neural signatures of sustained attention, with intro by @hartleylabnyu.bsky.social

09.03.2026 20:33 πŸ‘ 44 πŸ” 8 πŸ’¬ 1 πŸ“Œ 1
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Public communication alters private confidence Andreassen et al. demonstrate that confidence exhibited in public affects our private assessment of confidence.

How does uncertainty transmit from one head to another? Our new paper out today in @currentbiology.bsky.social reveals how public communication alters private confidence.

w/ Einar Andreassen & @cdfrith.bsky.social

@birkbeckpsychology.bsky.social
@leverhulme.ac.uk

πŸ§ πŸ“ˆ

09.03.2026 16:20 πŸ‘ 57 πŸ” 23 πŸ’¬ 0 πŸ“Œ 0

🧡1/3 New paper out! Beta bursts aren't all the same and their waveform shape are functionally meaningful ! @maciekszul.bsky.social & @danclab.bsky.socialπŸ‘‡
www.biorxiv.org/content/10.6...

09.03.2026 06:50 πŸ‘ 12 πŸ” 6 πŸ’¬ 1 πŸ“Œ 3
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I'll be giving a talk in the #CNS2026 Rising Star session on Saturday. Come say hi if you're around!

05.03.2026 15:51 πŸ‘ 21 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
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Compact deep neural network models of the visual cortex Nature - Parsimonious deep neural network models can be used for prediction of visual neuron responses.

DNN models of the brain are getting bigger. Are we replacing one complicated system in vivo with another in silico?

In new work, we seek the *smallest* DNN models of visual cortex, balancing prediction with parsimony.

It turns out these compact models are surprisingly small!

rdcu.be/e5H8G

26.02.2026 22:32 πŸ‘ 124 πŸ” 46 πŸ’¬ 3 πŸ“Œ 4
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Poster Session A...check it out now!
#CNS2026

07.03.2026 23:10 πŸ‘ 5 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Task learning increases information redundancy of neural responses in macaque visual cortex How does the brain optimize sensory information for decision-making in new tasks? One hypothesis suggests that learning reduces redundancy in neural representations to improve efficiency, whereas anot...

RIP redundancy reduction?

Beautiful work by Liu & colleagues showing that neural redundancy increases with learning, as predicted by a Bayesian model:
www.science.org/doi/10.1126/...

07.03.2026 11:08 πŸ‘ 68 πŸ” 25 πŸ’¬ 2 πŸ“Œ 1
Theory and practice of Bayesian inference using JASP
Theory and practice of Bayesian inference using JASP YouTube video by OPAM Conference

Awesome YouTube tutorial by Johnny van Doorn, "Theory and Practice of Bayesian Inference Using JASP". Link to the video: www.youtube.com/watch?v=VhIm...

Blogpost:

www.bayesianspectacles.org/youtube-lect...

05.03.2026 12:44 πŸ‘ 3 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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1/3 πŸ“„πŸ§  New paper out in Nature Protocols! Featuring Prof. @paolobelardinelli.bsky.social (CIMeC, UniTrento) with Christoph Zrenner & Ulf Ziemann: β€œOscillatory brain state-dependent stimulation with TMS combined with EEG”.

05.03.2026 09:54 πŸ‘ 8 πŸ” 3 πŸ’¬ 1 πŸ“Œ 1

1/ New preprint out! β€œControl of cortical population activity with patterned microstimulation.” We show that brief training with multi-electrode stimulation pulses is enough to steer prefrontal population activity along desired trajectories in awake macaques. tinyurl.com/3d6kv26w

04.03.2026 23:51 πŸ‘ 19 πŸ” 9 πŸ’¬ 1 πŸ“Œ 2
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Orbitofrontal cortex drives predictive filtering of sensory responses - Nature Neuroscience Top-down projections from the orbitofrontal cortex carry predictive signals that grow with sound experience and suppress the auditory cortex via inhibitory circuits, revealing a predictive mechanism f...

Orbitofrontal cortex drives predictive filtering of sensory responses

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

#neuroskyence

02.03.2026 15:41 πŸ‘ 75 πŸ” 28 πŸ’¬ 0 πŸ“Œ 2
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Faculty Lecturer - Department of Psychology Please refer to the How to Apply for a Job (for External Candidates) job aid for instructions on how to apply. If you are an active McGill employee (ie: currently in an active contract or position at ...

McGill is hiring a faculty lecturer in social psychology, in a (non-adjunct) permanent teaching position.

Please consider being my colleague, Montreal is really great: mcgill.wd3.myworkdayjobs.com/en-US/McGill...

04.02.2026 21:36 πŸ‘ 33 πŸ” 31 πŸ’¬ 0 πŸ“Œ 2
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Episodic memory encoding fluctuates at a theta rhythm of 3–10 Hz Nature Human Behaviour - Biba et al. show that episodic memory encoding fluctuates at a theta rhythm of 3–10 Hz.

I am excited to share my first paper, showing that episodic memory formation is theta rhythmic, is now published in Nature Human Behavior! Check it out here: rdcu.be/e6pzS. Thanks to my PI, Katherine Duncan, and to my collaborators for their support on this journey! Stay tuned for iEEG follow up 🧠

02.03.2026 19:28 πŸ‘ 103 πŸ” 43 πŸ’¬ 3 πŸ“Œ 3

Decomposing response inhibition: a POMDP model https://www.biorxiv.org/content/10.64898/2026.02.26.708416v1

02.03.2026 21:15 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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ConfΓ©rences Paris-Saclay Summit Choose Science - Jour 1 - MatinΓ©e - Salle Armand Peugeot Suivez en direct toutes les confΓ©rences de la matinΓ©e du 18 fΓ©vrier en salle Armand Peugeot et dΓ©couvrez des Γ©changes qui redΓ©finiront votre vision du monde....

Γ‰crans : quel impact rΓ©el sur les enfants et ados ?
La vidéo de ma table-ronde au Paris-Saclay Summit la semaine dernière:
www.youtube.com/live/9xx3ETh...

02.03.2026 08:19 πŸ‘ 7 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
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We think of white matter as the highways of the brain. But when we followed development along those highways, we were surprised. The journey is more complex than we thought. My final PhD paper, β€œTwo Axes of White Matter Development”, is now out in @natcomms.nature.com! πŸ›£οΈπŸ§ βœ¨
πŸ”— bit.ly/wm2axes

02.03.2026 01:09 πŸ‘ 102 πŸ” 47 πŸ’¬ 2 πŸ“Œ 4

Bayesian surprise tracks the strength of perceptual insight https://www.biorxiv.org/content/10.64898/2026.02.26.708200v1

28.02.2026 20:15 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
An array of 9 purple discs on a blue background. Figure from Hinnerk Schulz-Hildebrandt.

An array of 9 purple discs on a blue background. Figure from Hinnerk Schulz-Hildebrandt.

A nice shift in perceived colour between central and peripheral vision. The fixated disc looks purple while the others look blue.

The effect presumably comes from the absence of S-cones in the fovea.

From Hinnerk Schulz-Hildebrandt:
arxiv.org/pdf/2509.115...

24.09.2025 10:16 πŸ‘ 770 πŸ” 296 πŸ’¬ 33 πŸ“Œ 53
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Spatial Null Models and Transforms for Brain Map Comparison Implements spatial null models and coordinate-space transformations for statistical comparison of brain maps, following the framework described in Markello et al. (2022)…

neuromapr 0.2.1 has been accepted and published on CRAN!

Very excited to get this out to users in the simplest way possible, and hope the #rstats #neuroimaging community finds it useful!

lcbc-uio.github.io/neuromapr/

28.02.2026 20:41 πŸ‘ 22 πŸ” 10 πŸ’¬ 0 πŸ“Œ 0
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🚨 New Paper: Controlling the Human Connectome with Spatially Diffuse Input Signals

Now in press at Communications Biology!

www.nature.com/articles/s42...

28.02.2026 23:54 πŸ‘ 38 πŸ” 13 πŸ’¬ 0 πŸ“Œ 1
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Alina Studenova - in-consciousness-we-trust Recently, I have witnessed a discussion during one of the talks in our department. The issue was about the study of motor imagery. The experiment went as follows: participants imagined a movement; the...

I read another book. β€œIn Consciousness We Trust: The Cognitive Neuroscience of Subjective Experience” by Hakwan Lau. Finally, the book about consciousness (=subjective experience) that I can comprehend. Read my opinion here
www.alinastudenova.com/home/blog/bo...

01.03.2026 10:07 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
#882 Luiz Pessoa - The Entangled Brain: How Perception, Cognition, and Emotion Are Woven Together
#882 Luiz Pessoa - The Entangled Brain: How Perception, Cognition, and Emotion Are Woven Together YouTube video by The Dissenter

In episode 882, I talk with Dr. Luiz Pessoa about his great book, The Entangled Brain: How Perception, Cognition, and Emotion Are Woven Together. #Neuroscience #Science

youtu.be/gxdQXTAGlio

01.03.2026 09:46 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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UZH: Postdoctoral Position Research at the Zurich Cognitive Psychology Unit focuses on capacity limits of cognition, in particular working memory, long-term memory, and attention, which we investigate with experimental, individ...

We're looking for a postdoc starting this summer to join our efforts in understanding the capacity limits of cognition: jobs.uzh.ch/job-vacancie...

23.02.2026 03:47 πŸ‘ 22 πŸ” 19 πŸ’¬ 0 πŸ“Œ 2
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What is the brain for? Active inference is widely discussed as a unifying framework for understanding brain function, yet its empirical status remains debated. Our review identifies core predictions across the action-perception cycle and evaluates their empirical support: osf.io/preprints/ps...

29.01.2026 08:28 πŸ‘ 98 πŸ” 39 πŸ’¬ 2 πŸ“Œ 1
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Grounding distractor inhibition in action control: Implicit distractor-location learning is viewer dependent Spatial selective attention is typically thought to act as a sensory filter: prioritizing the processing of relevant information at a particular locat…

πŸ“’ New paper in Cognition @cognitionjournal.bsky.social with my co-authors: Freek van Ede @freekvanede.bsky.social, Chris Jungerius @cjungerius.bsky.social, and Heleen A. Slagter @haslagter.bsky.social. Grateful to have collaborated with you on this work: www.sciencedirect.com/science/arti... [1/5]

23.02.2026 08:51 πŸ‘ 20 πŸ” 9 πŸ’¬ 5 πŸ“Œ 0
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Episode #38 in #TheoreticalNeurosciencePodcast: On extracting spiking network models from experiments - with Richard Gao @rdgao.bsky.social

theoreticalneuroscience.no/thn38

How to fit spiking network models to experimental data when there is no unique parameter set giving the best fit.

28.02.2026 08:06 πŸ‘ 36 πŸ” 9 πŸ’¬ 0 πŸ“Œ 1
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Postdoctoral researcher on single neuron recordings for consciousness Contract period: 18 monthsExpected date of employment: June 2026Proportion of work: Full timeSalary: according to INSERM scales (~2900 – 3300 € gross / month based on experience)Desired level of educa...

#hiring
Come work with us to better understand the neuronal mechanism underlying perceptual consciousness!

18 months postdoctoral position at INSERM in Grenoble, France.

βŒ›Application deadline 10 March 2026.

euraxess.ec.europa.eu/jobs/408445

24.02.2026 20:50 πŸ‘ 29 πŸ” 24 πŸ’¬ 1 πŸ“Œ 2
Experimental task. Trials began with variable fixation (500–1,000 ms) and placeholder (500–1,000 ms) intervals, followed by two spatial cues (100 ms) on opposite sides of the visual field to indicate the likely locations of both a subsequent near-threshold target and a salient distractor (100 ms). Cue validity was 70% for both cue types. Targets and distractors were presented after a variable delay (500–1,600 ms). Stimulus displays could include (i) both a target and a distractor, (ii) a target only, (iii) a distractor only, or (iv) neither a target nor a distractor. The number pad on a computer keyboard was used to indicate the presence of a target at the cued location, a target at a non-cued location, or no target.

Experimental task. Trials began with variable fixation (500–1,000 ms) and placeholder (500–1,000 ms) intervals, followed by two spatial cues (100 ms) on opposite sides of the visual field to indicate the likely locations of both a subsequent near-threshold target and a salient distractor (100 ms). Cue validity was 70% for both cue types. Targets and distractors were presented after a variable delay (500–1,600 ms). Stimulus displays could include (i) both a target and a distractor, (ii) a target only, (iii) a distractor only, or (iv) neither a target nor a distractor. The number pad on a computer keyboard was used to indicate the presence of a target at the cued location, a target at a non-cued location, or no target.

Attentional resources vary rhythmically, but what about susceptibility to #distractors?@fiebelkornian.bsky.social &co show that theta & alpha phases modulate sensitivity & distractor impact, revealing rhythm-specific mechanisms shaping #attention & distractability @plosbiology.org πŸ§ͺ plos.io/4tU0vh4

24.02.2026 17:25 πŸ‘ 15 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
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What do neuroscientists mean by the term representation? A group of neuroscientists and philosophers discuss the use and misuse of the term β€œrepresentation” across the cognitive sciences.

Terrific podcast relevant to our debates here about β€œWhat is an emotion?” But in the case of emotion, it’s turned up to 11 b/c (unlike β€œrepresentation”), everyone alive has intuition and interest about the answers (including the public).

www.thetransmitter.org/brain-inspir...

04.06.2025 11:33 πŸ‘ 53 πŸ” 16 πŸ’¬ 2 πŸ“Œ 1
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Across three experiments, we found that implicit distractor-location learning is viewer dependent when embedded in active behavior. That is, spatial inhibition cannot be abstracted from the agent moving through a 3D world and how they can suppress sampling the world from their perspective. [4/5]

23.02.2026 09:04 πŸ‘ 1 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0