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Lexi Decker

@lexidecker.bsky.social
318 followers 312 following 37 posts

Asst. Prof of Psych & Brain @ WashU| former postdoc @ MIT BCS & PhD @ UofToronto | Sustained & Selective Attention, Learning, Episodic Memory, Development, Socioeconomic Status | Environment

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Reposted by Lexi Decker
Karl Deisseroth @deisseroth.bsky.social · 05/10/2026
Thank you to everyone sharing in this moment! I’m so grateful to all my trainees & collaborators… dlab.stanford.edu/group-members (pic: Peter and I together in 2017) Reading for all those asking: for technical details: dlab.stanford.edu for everyone: deisseroth.org/projections
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Heleen Slagter @haslagter.bsky.social · 16h
Reposting, in case you missed it! 8-) Reskeet appreciated!
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Francesca Bouaoun @francescabouaoun.bsky.social · 04/10/2026
It’s been two years since Ontario Place West Island was destroyed for a planned private spa. Hundreds of trees were cut down - here’s a snapshot of the many species who lost habitat. 🧵
Side-by-side comparison of a landscape on the Toronto waterfront. In one scene, an island is covered in trees reflected in a still channel of water. The other image of the same place shows a barren stretch land with a pile of rubble in the centre.
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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...
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ingmarvisser.bsky.social @ingmarvisser.bsky.social · 28/09/2026
New paper 🍼📄 ManyBabies 3 is out (open access, registered report in Developmental Science). 30 labs, 33 languages, 839 infants set out to replicate a textbook finding: 7-month-olds learn abstract rules from speech (@garymarcus.bsky.social et al., 1999). We didn’t find it. 🧵
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Hayoung Song @hayoungsong.bsky.social · 25/09/2026
There are 2 tenure-track searches happening at UT Austin Psychology @utaustin.bsky.social! Dev/Social: apply.interfolio.com/194041 Clinical: apply.interfolio.com/194045 Please apply and be my colleague! Austin is awesome, UT is awesome, and the department is awesome⭐
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Blake Richards @tyrellturing.bsky.social · 22/09/2026
Two tenure track positions are open in Computer Science @mcgill.ca ! Secure Software mcgill.wd3.myworkdayjobs.com/en-US/McGill... Quantum Computing mcgill.wd3.myworkdayjobs.com/en-US/McGill... Come join our department, and live in the coolest city in North America! (Yeah, I stand by that.)
mcgill.wd3.myworkdayjobs.com
Tenure-Track Faculty Position in Computer Science: Secure Software and Computer Systems
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 ...
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Bodo Winter @bodowinter.bsky.social · 21/09/2026
New tenure track position call for cognitive science at UCSD: apol-recruit.ucsd.edu/JPF04633
apol-recruit.ucsd.edu
Assistant Professor in Cognitive Science
University of California, San Diego is hiring. Apply now!
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Ken Paller @paller.bsky.social · 20/09/2026
Announcing two tenure-track faculty openings in the Psych Dept at Northwestern University: Cognitive/Affective Neuroscience and Clinical Psychology psychology.northwestern.edu/people/facul...
psychology.northwestern.edu
Job Opportunities: Department of Psychology - Northwestern University
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Debra Titone @dtitone.bsky.social · 20/09/2026
Two #Developmental TT positions at McGill.. Could include people who study #language and #multilingualism. Please forward to colleagues/advanced trainees who might wish to join us in Montreal, Canada! mcgill.wd3.myworkdayjobs.com/McGill_Caree...
mcgill.wd3.myworkdayjobs.com
Tenure-Track Position (Assistant Professor), Developmental Psychology, 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 ...
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Matthew Bunn @matthew-bunn.bsky.social · 19/09/2026
This is fantastic reporting. Study was about to provide data that could have contributed to understanding why Black Americans face twice the risk of Alzheimer’s dementia as white Americans. So, of course, the Trump team terminated it.
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Jeff Zacks @jzacks.bsky.social · 18/09/2026
The call for participation for the first inaugural Event Cognition Conference is live! franco.nd.edu/events/confe... franco.nd.edu/assets/67910...
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Nature Portfolio @natureportfolio.nature.com · 16/09/2026
Executive function develops across childhood. A Review in Nature Reviews Psychology critically examines how executive function is measured and synthesizes evidence on how experience fosters the development of executive function skills. 🔒
go.nature.com
Understanding how experience supports the development of executive function skills - Nature Reviews Psychology
Executive function (the ability to regulate thoughts and actions in the service of goals) develops across childhood. In this Review, Doebel and colleagues critically examine how executive function is measured and synthesize evidence on how experience fosters the development of executive function skills.
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Hayoung Song @hayoungsong.bsky.social · 16/09/2026
Honored to be featured, thanks @franciscorr25.bsky.social and @thetransmitter.bsky.social! It was exciting to share my vision for the lab (thesonglab.github.io) and reflect on the wisdom my mentors have passed on⭐️
thesonglab.github.io
Song Lab
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Katie Insel @katieinsel.bsky.social · 14/09/2026
The CATS Lab is moving to Columbia next year, and I am recruiting a PhD student this cycle to start Fall 2027 in the Department of Psychology. Learn more about how to apply here: psychology.columbia.edu/content/prep... I am also recruiting a postdoc and staff for 2027. More info coming soon!
psychology.columbia.edu
Preparing to Apply | Department of Psychology
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Jamie Hanson @jamielarsh.bsky.social · 10/09/2026
More U.S. kids live in net worth poverty than income poverty, and almost no one studies it. Our new paper argues wealth deprivation shapes children's development in its own right, and that standard wealth measures miss the debts poorer families carry. academic.oup.com/cdpers/advan...
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Lexi Decker @lexidecker.bsky.social · 10/06/2026
So excited to have you here @rbanda.bsky.social and for all the cool work we're going to do together!
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Ridhi Bandaru @rbanda.bsky.social · 09/06/2026
Btw late news but I’m now a predoc with @lexidecker.bsky.social @ the How We Learn Lab!!! 📊📑🎊🧠
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Jeff Zacks @jzacks.bsky.social · 31/03/2026
The Center for Theoretical and Computational Neuroscience at WashU has an opening for a postdoctoral scholar! Deadline is May 1. ctcn.wustl.edu/postdoc-fell...
ctcn.wustl.edu
Postdoc Fellows
The CTCN funds a cohort of outstanding Postdoctoral Fellows to work at the interface between theoretical and experimental labs and help forge new collaborations. CTCN Fellows have strong training i…
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Robert Zaichkowski @rzaichkowski.bsky.social · 16/03/2026
A cyclist was seriously injured at Eglinton & Oakwood last night. Now that the Eglinton Crosstown LRT is open, the #BikeTO community deserves to know WHEN will the long promised bike lanes on that street be installed? #shame #TOpoli #VisionZero CC www.cp24.com/local/toront...
cp24.com
Male cyclist rushed to hospital after being struck by vehicle in Little Jamaica
A male cyclist has been struck by a vehicle in Little Jamaica, Toronto police say.
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Lexi Decker @lexidecker.bsky.social · 07/03/2026
Wow congratulations @zreagh.bsky.social !!!
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Yining Ding @liliand.bsky.social · 03/03/2026
Excited to share our paper (with @jzacks.bsky.social), now out in JEP:LMC! Event boundaries sometimes disrupt temporal order memory in list-based paradigms—but what happens in narratives with more complex structures that better resemble real life? ✨ Link: psycnet.apa.org/record/2027-...
psycnet.apa.org
APA PsycNet
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Lexi Decker @lexidecker.bsky.social · 03/03/2026
Super cool paper led by the amazing @tbiba.bsky.social suggesting that we form memories at the theta rhythm! And even cooler that these rhythms can actually be detected with careful behavioral manipulations!
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Lexi Decker @lexidecker.bsky.social · 03/03/2026
Super cool paper led by the amazing Thomas Biba showing that episodic memory is theta rhythmic! And even cooler that these rhythms can actually be detected with behavioral memory data (my favorite type of data!).
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tbiba.bsky.social @tbiba.bsky.social · 02/03/2026
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 🧠
rdcu.be
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.
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Hugo Spiers @hugospiers.bsky.social · 09/02/2026
"..hippocampal-prefrontal systems represent emotion concepts in a map-like way at multiple levels of abstraction.." Map-like representations of emotion knowledge in hippocampal-prefrontal systems by @yumengma.bsky.social and @pkragel.bsky.social www.nature.com/articles/s41...
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Melissa Kibbe @levelsof.bsky.social · 06/11/2025
Now out in an issue! ~~ www.cell.com/trends/cogni...
cell.com
The ubiquity of episodic-like memory during infancy
Considerable progress has been made in understanding early memory development. However, much of this research pre-dates contemporary theories of memory systems in the mature brain. This review provide...
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Lillian Behm @lillianbehm.bsky.social · 31/01/2026
Awake infant fMRI offers a rare window into early brain and cognitive development. In a new paper out now in Infancy, we leverage data from hundreds of infant scans from the Saxe and Turk-Browne Labs to reveal what factors drive scanning success — and how future studies can maximize data retention!
onlinelibrary.wiley.com
Functional Magnetic Resonance Imaging in Awake Infants: Insights From More Than 750 Scanning Sessions
Functional magnetic resonance imaging (fMRI) in awake infants has the potential to reveal how the early developing brain gives rise to cognition and behavior. However, awake infant fMRI poses signifi....
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
Thanks to Amy Sue Finn, @duncanlabuoft.bsky.social Katherine Duncan, and other amazing collaborators for always inspiring me!
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
This also made me wonder about neural network models of attention and learning - would attention 'darting' early in training (rapid sequential sampling across features) produce better learning than 'diffuse' attention? Is this immature attention a feature, not a bug 🤔?
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
This darting pattern makes me think about explore-exploit patterns across development. Higher exploration (darting) early in training/development enabling broader learning
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
We also found kids were less likely than adults to learn associations between relevant and irrelevant info—their associative systems "stick" the stuff they encounter together less... keeping things more open or disparate..
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
Does darting attention have adaptive benefits over diffusing? Hypothetically it would allow children to retain a narrowly focused attentional scope in each moment, regardless of the content of their focus. Darting could lead to really good and broad learning when averaged across many events.
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
But kids' broad attention didn't always"diffuse" over everything. Instead, it appeared to "dart" between relevant and irrelevant information across time - narrowing in on one one or the other in each moment
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
We found that kids' immature selective attention allowed them to learn more—even stuff we explicitly told them to ignore! Their "leaky" attention mediated better memory for task-irrelevant information
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
❗New Paper❗Is children's attention more like a spotlight that darts across time, or one that diffuses across many things at once? How might children's immature attention help their learning? Our Dev Sci Paper has answers! 🧵🎯 pubmed.ncbi.nlm.nih.gov/41549519/
media.tenor.com
a woman stands in front of a crowd on a stage with a lot of lights
ALT: a woman stands in front of a crowd on a stage with a lot of lights
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
This also made me wonder about neural network models of attention and learning - would attention 'darting' early in training (rapid sequential sampling across features) produce more robust, generalizable learning than parallel 'diffuse' attention? Is this immature attention a feature, not a bug 🤔?
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
This darting pattern makes me think about explore-exploit patterns across development. Higher exploration (darting) early in training/development enabling broader learning
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
We also found kids were less likely than adults to learn associations between relevant and irrelevant info—their associative systems "stick" the stuff they encounter together less... keeping things more open or disparate..
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
Darting could have adaptive benefits over diffusing. It could allow children to remain laser focused some times, facilitating detailed learning of whatever it is they are prioritizing in the moment. The pattern of darting ends up looking broad when averaged across many events.
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
But kids' broad attention doesn't always let everything in all at once, like a "diffuse" attentional spotlight that spreads over everything. Instead, their attention often appears to "dart" between relevant and irrelevant information - narrowing in one one or the other over time.
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Lexi Decker @lexidecker.bsky.social · 23/01/2026
We found that kids' bad selective attention gave them a broader curriculum for learning—they learned stuff we explicitly told them to ignore! Their "leaky" attention mediated better memory for task-irrelevant content onlinelibrary-wiley-com.libproxy.washu.edu/doi/10.1111/...
onlinelibrary-wiley-com.libproxy.washu.edu
Shibboleth Authentication Request
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duncanlabuoft.bsky.social @duncanlabuoft.bsky.social · 16/01/2026
Our stellar graduate alum Dr. Alexandra Decker is looking for a Lab Manager for her lab, the Learning and Development lab@WashU! 🧠 If you are interested in attention, learning and memory in children and adults, this is the place to be. See her posts for more details! #Research #Psychology
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Lexi Decker @lexidecker.bsky.social · 16/01/2026
Apply here! wustl.wd1.myworkdayjobs.com/en-US/Extern...
wustl.wd1.myworkdayjobs.com
Research Technician I - Social Science
Scheduled Hours 37.5 Position Summary Applications are invited for a full-time research assistant position at WashU in St. Louis to work with Dr. Alexandra Decker in the Learning and Development lab. ...
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Lexi Decker @lexidecker.bsky.social · 16/01/2026
wustl.wd1.myworkdayjobs.com/en-US/Extern...
wustl.wd1.myworkdayjobs.com
Research Technician I - Social Science
Scheduled Hours 37.5 Position Summary Applications are invited for a full-time research assistant position at WashU in St. Louis to work with Dr. Alexandra Decker in the Learning and Development lab. ...
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Zach Reagh @zreagh.bsky.social · 15/01/2026
My lab is recruiting a postdoc and a full-time research technician to work on an NIH-funded project studying age-related changes in memory for naturalistic events. Behavior, fMRI, and blood-based biomarkers. 3+ years funding guaranteed. Postdoc: tinyurl.com/ykjfbnj8 Tech: tinyurl.com/2f2hw3f5
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Lexi Decker @lexidecker.bsky.social · 12/01/2026
You'll help build a new lab from the ground up, run cognitive experiments with kids & adults, analyze behavioral/psychophysiological data & help write papers. Please DM me if interested and help spread the word!
deckerlab.com
How We Learn Lab
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Lexi Decker @lexidecker.bsky.social · 12/01/2026
🧠 Hiring a Research Assistant/Lab Manager! Share widely! 📍 St. Louis | ⏰ Full-time We're launching the How We Learn Lab @WashU, studying attention, learning & memory interactions. Perfect for anyone interested in dev cog neuro who wants hands-on experience before grad school. deckerlab.com
deckerlab.com
How We Learn Lab
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Cycle Toronto @cycletoronto.bsky.social · 05/01/2026
"The decision in Cycle Toronto v Ontario was a strong rebuke to government overreach when those actions put people’s lives at risk and are unsupported by facts and data. We look forward to defending that victory in court on Jan. 28.”
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