Lexi Decker

Lexi Decker

@lexidecker.bsky.social

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

322 followers314 following37 posts

Lexi Decker reposted

Reposting, in case you missed it! 8-) Reskeet appreciated!

Heleen Slagter@haslagter.bsky.social

🚨 Job alert 🚨 Our department @vuamsterdam.bsky.social is hiring an Assistant Professor in Cognitive Neuroscience! Join our lovely community here in beautiful Amsterdam! 🧠🔥 Deadline: October 15 workingat.vu.nl/vacancies/as...

Lexi Decker reposted

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. 🧵

Lexi Decker reposted

Lexi Decker reposted

Lexi Decker reposted

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.

Jenna Norton@jenna-m-norton.bsky.social

Excellent article by @jessicaglenza.bsky.social at @us.theguardian.com that highlights how the Trump-Bhattacharya NIH grant terminations undermine trust built in communities and waste public resources by terminating critical, rigorous cutting edge science. www.theguardian.com/us-news/2026...

Lexi Decker reposted

Lexi Decker reposted

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.ioSong Lab
The Transmitter @thetransmitter.bsky.social

In this month’s “Liftoff,” @hayoungsong.bsky.social talks about motivating her students to bring their A game when presenting their work. And @emilyaeryjones.bsky.social warns against trying to find new lab members with your exact credentials. By @franciscorr25.bsky.social bit.ly/4AhpxtY

Lexi Decker reposted

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.comMale cyclist rushed to hospital after being struck by vehicle in Little JamaicaA male cyclist has been struck by a vehicle in Little Jamaica, Toronto police say.

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!

tbiba.bsky.social@tbiba.bsky.social

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 🧠

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!).

tbiba.bsky.social@tbiba.bsky.social

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 🧠

Lexi Decker reposted

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.beEpisodic memory encoding fluctuates at a theta rhythm of 3–10 HzNature Human Behaviour - Biba et al. show that episodic memory encoding fluctuates at a theta rhythm of 3–10 Hz.

Lexi Decker reposted

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.comFunctional Magnetic Resonance Imaging in Awake Infants: Insights From More Than 750 Scanning SessionsFunctional 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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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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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..

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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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

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.

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

Lexi Decker reposted

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

wustl.wd1.myworkdayjobs.comResearch Technician I - Social ScienceScheduled 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. ...
Lexi Decker@lexidecker.bsky.social

🧠 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

Lexi Decker reposted

"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.”

Canadian Cycling Magazine @canadiancycling.bsky.social

The CCF will support the Ontario government’s appeal of a ruling that blocked the removal of downtown Toronto bike lanes #ONpoli #BikeTO cyclingmagazine.ca/sections/new...

Lexi Decker reposted

Thanks to @shawnballard.bsky.social for this terrific synopsis of our latest work in @cellpress.bsky.social. The details of how stimulant medications like Ritalin work inside the brain will surprise you! doi.org/10.1016/j.ce...

doi.orgRedirecting
WashU Medicine@washumedicine.bsky.social

What if we've misunderstood how ADHD stimulants work? WashU Medicine brain imaging and child neurology teams joined forces to uncover where in the brain these drugs act — knowledge that could improve how attention disorders are treated. medicine.washu.edu/news/stimula...