Arielle Keller
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ariellekeller.bsky.social
Arielle Keller
@ariellekeller.bsky.social
Assistant Professor of Cognitive Neuroscience | UConn Psych Sci | attention, cognition, mental health, development, environment, personalized neuroscience
@acornlab.bsky.social‬
arielleskeller.wixsite.com/attention
appliedcognitionlab.psychology.uconn.edu
Pinned
Our paper on the ☀️ "summer slide" 🛝 is out now @pnas.org!
www.pnas.org/doi/10.1073/...
Summer slide is a replicable phenomenon across diverse datasets that's more than "forgetting" school material in vacation months, but effects of socioeconomic inequality are ➡️ 7x bigger! ⬅️
#PsychSciSky #DevPsy
🧵👇
Reposted by Arielle Keller
I want to start by saying thank you, truly, to my friends, family, and so many good people who have reached out to check on me during this hard moment in Minnesota. I love you all. I am okay. See thread....
January 28, 2026 at 1:17 AM
Wow, this is just so cool!! 🤩🧠
The hippocampal map has its own attentional control signal!
Our new study reveals that theta #sweeps can be instantly biased towards behaviourally relevant locations. See 📹 in post 4/6 and preprint here 👉
www.biorxiv.org/content/10.6...
🧵(1/6)
Attention-like regulation of theta sweeps in the brain's spatial navigation circuit
Spatial attention supports navigation by prioritizing information from selected locations. A candidate neural mechanism is provided by theta-paced sweeps in grid- and place-cell population activity, which sample nearby space in a left-right-alternating pattern coordinated by parasubicular direction signals. During exploration, this alternation promotes uniform spatial coverage, but whether sweeps can be flexibly tuned to locations of particular interest remains unclear. Using large-scale Neuropixels recordings in freely-behaving rats, we show that sweeps and direction signals are rapidly and dynamically modulated: they track moving targets during pursuit, precede orienting responses during immobility, and reverse during backward locomotion — without prior spatial learning. Similar modulation occurs during REM sleep. Canonical head-direction signals remain head-aligned. These findings identify sweeps as a flexible, attention-like mechanism for selectively sampling allocentric cognitive maps. ### Competing Interest Statement The authors have declared no competing interest. European Research Council, Synergy Grant 951319 (EIM) The Research Council of Norway, Centre of Neural Computation 223262 (EIM, MBM), Centre for Algorithms in the Cortex 332640 (EIM, MBM), National Infrastructure grant (NORBRAIN, 295721 and 350201) The Kavli Foundation, https://ror.org/00kztt736 Ministry of Science and Education, Norway (EIM, MBM) Faculty of Medicine and Health Sciences; NTNU, Norway (AZV)
www.biorxiv.org
January 28, 2026 at 11:41 AM
Finding it tough to get back in the swing of things after vacation? You're not alone! Our study found that U.S. adults show lowest performance on cognitive tasks like executive functioning after winter break
Thanks @uconn.bsky.social for this highlight!
tinyurl.com/4dmssj5m
#PsychSciSky #AcademicSky
Study: Long Breaks Tied to Dip in Cognitive Test Performance - UConn Today
A joint UConn - University of Minnesota research study concludes that there may be some reality to the "summer slide" of dips in test scores follo ...
today.uconn.edu
January 8, 2026 at 4:40 PM
A bit of happy personal news to kick off 2026 - take that student loans! 😊 Adding another ✨ huge plug ✨ for the totally life-changing NIH Loan Repayment Program (LRP). Check to see if you're eligible! So grateful for this privilege/support.
#academicsky #neuroskyence

grants.nih.gov/funding/fund...
January 7, 2026 at 5:58 PM
Congratulations @joelleba.bsky.social! This is really outstanding work! 🎉
January 5, 2026 at 8:16 PM
Reposted by Arielle Keller
This is your brain on Ritalin. Got your attention? Stimulant medications like Ritalin (methylphenidate) do, but not in the way you might think. They don't act directly on the brain’s attention systems! Find out what's really happening in @cellpress.bsky.social. doi.org/10.1016/j.ce...
December 24, 2025 at 4:46 PM
Reposted by Arielle Keller
Very happy to share our paper on the "summer slide" in kid's cognitive test scores is out now in @pnas.org!
We find a replicable dip in performance across multiple domains of cognition in >23,000 kids across 4 datasets!

Check out the 🧵 from @ariellekeller.bsky.social below! 👇
Our paper on the ☀️ "summer slide" 🛝 is out now @pnas.org!
www.pnas.org/doi/10.1073/...
Summer slide is a replicable phenomenon across diverse datasets that's more than "forgetting" school material in vacation months, but effects of socioeconomic inequality are ➡️ 7x bigger! ⬅️
#PsychSciSky #DevPsy
🧵👇
December 18, 2025 at 4:54 PM
Our paper on the ☀️ "summer slide" 🛝 is out now @pnas.org!
www.pnas.org/doi/10.1073/...
Summer slide is a replicable phenomenon across diverse datasets that's more than "forgetting" school material in vacation months, but effects of socioeconomic inequality are ➡️ 7x bigger! ⬅️
#PsychSciSky #DevPsy
🧵👇
December 16, 2025 at 5:56 PM
Loved getting to think deeply about the intersection of meditation research and cognitive neuroscience studies of attention with @matthewsacchet.bsky.social t.bsky.social, @sebastianehmann.bsky.social and team! 🎉🎉

#neuroskyence #PsychSciSky #neuroimaging #CogSci
December 8, 2025 at 8:04 PM
So grateful for our amazing ACORN Lab team!! Can’t believe it’s already been a whole year! 😊🐿️🧠

#neuroskyence #psychscisky #cogdev #devsci #neuroimaging
Introducing the Applied Cognition and peRsonalized Neuroscience (ACORN) Lab at UConn, led by Dr. Arielle Keller!

Since launching in 2024, we’ve grown into a thriving team exploring cognitive, clinical, and developmental neuroscience using personalized approaches.

#Neuroskyence #PsychSciSky
November 27, 2025 at 7:04 PM
Reposted by Arielle Keller
Biopsychosocial and Demographic Predictors of Functional Brain Network Specialization and Segregation Across the Adult Lifespan | medRxiv www.medrxiv.org/content/10.1...
November 23, 2025 at 10:16 PM
Reposted by Arielle Keller
Multivariate environmental exposures are reflected in whole-brain functional connectivity and cognition in youth | bioRxiv www.biorxiv.org/content/10.1...
November 16, 2025 at 11:01 PM
Happy New Preprint Friday!* Thrilled to share new results in collab with Sarah Lichenstein & @yiplab.bsky.social showing our brain's functional connections reflect the environments we grow up in!
tinyurl.com/exposomeConnectivity

#neuroskyence #PsychSciSky #DevPsy #cognition
*can this be a thing??
November 14, 2025 at 1:40 PM
Reposted by Arielle Keller
Happy to share our review "Investigating hierarchical critical periods in human neurodevelopment” in @npp-journal.bsky.social! We examine neurobiological, environmental & behavioral evidence for human critical periods in sensory and association cortex +discuss new research directions rdcu.be/eMkVU 🧵
November 11, 2025 at 8:01 PM
Reposted by Arielle Keller
After years of development and testing, we are happy to present our work in "Diffusion MRI Processing in the HEALthy Brain and Child Development Study: Innovations and Applications"! www.biorxiv.org/content/10.1.... A thread:
Diffusion MRI Processing in the HEALthy Brain and Child Development Study: Innovations and Applications
The landmark ongoing HEALthy Brain and Cognitive Development (HBCD) study will longitudinally chart brain development in a large sample (projected n=7,200) of infants through age 10 years with multimo...
www.biorxiv.org
November 11, 2025 at 10:03 PM
Reposted by Arielle Keller
Why do brain networks vary? Do these differences shape behavior? If every 🧠 is unique, how can we detect common features of brain organization?
@rodbraga.bsky.social and I dig in, in @annualreviews.bsky.social (ahead of print):
go.illinois.edu/Gratton2025-...

#neuroskyence #psychscisky #MedSky
🧵👇
Dense Phenotyping of Human Brain Network Organization Using Precision fMRI
The advent of noninvasive imaging methods like functional magnetic resonance imaging (fMRI) transformed cognitive neuroscience, providing insights into large-scale brain networks and their link to cog...
go.illinois.edu
October 16, 2025 at 3:00 PM
Reposted by Arielle Keller
Very excited to share a new paper led by my amazing former honors student, @pach-selina.bsky.social, with Silvia Bunge.

Selina asked: for kids living in poverty who are high-performers in school, are there downstream mental health risks?

www.sciencedirect.com/science/arti...
Academic success and mental health: The paradox of Frontoparietal‐Default Mode Network coupling among children facing poverty
Childhood family income is a powerful predictor of academic achievement and mental health. Here, we ask whether children living in poverty who succeed…
www.sciencedirect.com
October 16, 2025 at 8:56 PM
Reposted by Arielle Keller
🚨 New science alert! Our cross-species study, now in Nature Neuroscience, demonstrates psychedelics distort how we should interpret functional brain imaging.
👇🧵

nature.com/articles/s41...
#Neuroscience #Psychedelics #BrainImaging
Psychedelic 5-HT2A receptor agonism alters neurovascular coupling and differentially affects neuronal and hemodynamic measures of brain function
Nature Neuroscience - Padawer-Curry et al. show that the hallucinogenic 5-HT2A receptor agonist DOI alters neurovascular coupling in mice, with implications for the interpretation of human fMRI...
nature.com
October 15, 2025 at 8:18 PM
Reposted by Arielle Keller
This piece includes a critical perspective we all need to be paying more attention to!
September 26, 2025 at 2:54 AM
Reposted by Arielle Keller
One of the papers I've been most excited about since starting the lab!

We adopt a network neuroscience approach to understand how arousal reconfigures large-scale functional network organization to support memory of complex narratives!
Out now in @nathumbehav.nature.com! We applied graph theoretic analyses to fMRI data of participants watching movies/listening to stories. Integration across large-scale functional networks mediates arousal-dependent enhancement of narrative memories. Open access link: rdcu.be/eKKAw
October 13, 2025 at 6:35 PM
Reposted by Arielle Keller
New lab paper in DCN! 🧠 We conducted interviews with adolescents to better understand their perceptions of neuroscience research and barriers to participation, w/qualitative data that is shaping how we design lab studies & efforts to increase representation.

www.sciencedirect.com/science/arti...
Understanding barriers to adolescent participation in developmental neuroscience research
Increasing representation of youth in developmental neuroscience research is essential to elucidating neurobiological mechanisms of cognition, behavio…
www.sciencedirect.com
October 10, 2025 at 4:28 PM
Reposted by Arielle Keller
📣 New preprint from the Braga Lab! 📣

The ventral visual stream for reading converges on the transmodal language network

Congrats to Dr. Joe Salvo for this epic set of results

Big Q: What brain systems support the translation of writing to concepts and meaning?

Thread 🧵 ⬇️
October 7, 2025 at 9:51 PM
Your brain is unique! 🧠 If you're curious to see more individual-level fMRI at #CNS2026, please consider voting for our symposium "Not Your Average Brain" by end of day today! 🍁

#neuroskyence #cogpsyc #cogsci #PsychSciSky #neuroimaging @cogneuronews.bsky.social
Are you a @cogneuronews.bsky.social member?
Consider voting for our symposium at #CNS2026:
Not Your Average Brain: Individual-Level fMRI as a Paradigm Shift for Cognitive Neuroscience
Led by @jingnandu.bsky.social & A Zamani w/ C Lynch
Vote: www.cogneurosociety.org/account-login/
By: 11:59pm Oct. 1
CNS Account Login - Cognitive Neuroscience Society
March 7 – 10, 2026 Submit a Symposium Submit a Poster Latest from Twitter
www.cogneurosociety.org
October 1, 2025 at 3:04 PM
Reposted by Arielle Keller
Thrilled to team up with @caterinagratton.bsky.social @ariellekeller.bsky.social and Chuck Lynch for a symposium at CNS 2026! Please consider voting for our session!
Are you a @cogneuronews.bsky.social member?
Consider voting for our symposium at #CNS2026:
Not Your Average Brain: Individual-Level fMRI as a Paradigm Shift for Cognitive Neuroscience
Led by @jingnandu.bsky.social & A Zamani w/ C Lynch
Vote: www.cogneurosociety.org/account-login/
By: 11:59pm Oct. 1
CNS Account Login - Cognitive Neuroscience Society
March 7 – 10, 2026 Submit a Symposium Submit a Poster Latest from Twitter
www.cogneurosociety.org
September 30, 2025 at 3:11 PM
Reposted by Arielle Keller
Are you a @cogneuronews.bsky.social member?
Consider voting for our symposium at #CNS2026:
Not Your Average Brain: Individual-Level fMRI as a Paradigm Shift for Cognitive Neuroscience
Led by @jingnandu.bsky.social & A Zamani w/ C Lynch
Vote: www.cogneurosociety.org/account-login/
By: 11:59pm Oct. 1
CNS Account Login - Cognitive Neuroscience Society
March 7 – 10, 2026 Submit a Symposium Submit a Poster Latest from Twitter
www.cogneurosociety.org
September 30, 2025 at 2:58 PM