Arne Ekstrom
adekstreme.bsky.social
Arne Ekstrom
@adekstreme.bsky.social
how important are space and time to memory? the surprising result from a new paper with graduate student Sameer Sabharwal-Siddiqi is that several measures of space and time show no correlation with the richness of episodic memories! check it out:

www.sciencedirect.com/science/arti...
Naturalistic movements enrich episodic memories but not their spatiotemporal structure
It remains unclear how episodic memories, our memories for past events, are generated from the rich sensory details encompassing everyday experience. …
www.sciencedirect.com
November 5, 2025 at 11:28 PM
what happens when you spend two weeks learning new navigation or memory skills? as shown in our recent paper below, brain network connectivity changes but not hippocampal or other brain volumes! special thanks to collaborators Li Zheng and Steve Weisberg

elifesciences.org/articles/106...
Newly trained navigation and verbal memory skills in humans elicit changes in task-related networks but not brain structure
Learning new navigation or memory skills engages flexible brain network dynamics without altering gray matter, white matter, or hippocampal structure.
elifesciences.org
November 5, 2025 at 11:26 PM
Reposted by Arne Ekstrom
This is truly amazing. 85% accurate test in 45 minutes. The work was funded by the National Cancer Institute of the National Institutes of Health. Good thinking on the part of Trump/Musk to cut its funding. Make Cancer Great Again.
Goosebump producing news this week out of Oregon Health and Science University in the diagnosis of pancreatic CA.
They developed a groundbreaking blood test, called PAC-MANN. This new test can find pancreatic cancer in just 45 minutes, even in its earliest stages.
New blood test identifies hard-to-detect pancreatic cancer with 85% accuracy
A new blood test could help doctors detect pancreatic cancer earlier, potentially improving survival rates for one of the deadliest cancers.
www.eurekalert.org
February 23, 2025 at 2:15 AM
The university of arizona psychology department is hiring faculty with a strong interest in teaching to join our outstanding career track teaching unit! Please use this link to apply:

arizona.csod.com/ux/ats/caree...
Assistant Professor of Practice
Duties & Responsibilities:Teach approximately 6 PSY courses per academic year (includes online and face-to-face courses) at the undergraduate leve...
arizona.csod.com
January 10, 2025 at 4:30 PM
Reposted by Arne Ekstrom
A pleasure to speak to host Joe Murray of The Human Podcast about my research, career & journey through life

Covering: London taxi drivers, dreaming rats, virtual worlds, my navigation test/game: Sea Hero Quest, & navigators of micronesia:
youtube.com/watch?v=9eTz...
Life Story of Cognitive Neuroscientist | The Human Podcast Ep 34 (Hugo Spiers)
Dr Hugo Spiers is a professor of cognitive neuroscience at University College London and the director of the Spiers Lab. His work focuses on spatial cognitio...
https://youtube.com/watch?v=9eTzGgW5FCk…
June 16, 2024 at 8:13 PM
Reposted by Arne Ekstrom
New role for a Project Coordinator at COS. Perfect for an early career researcher passionate about open scholarship and looking to gain research experience, whether to then go to grad school or stay in industry.

jobs.lever.co/cos/ce551e5d...
Center For Open Science - Project Coordinator
At the Center for Open Science (COS), we build the tools to make it possible and easy for the research community to make scientific investigations' data, results, and outcomes open, transparent, and r...
jobs.lever.co
June 17, 2024 at 6:08 PM
Reposted by Arne Ekstrom
Amazing opportunity to be a lab manager in @sarahsolomon.bsky.social's new lab!!
🚨Job alert!

My new lab at Binghamton University is hiring a full-time lab manager ("assistant"). This is a great fit for a recent grad looking for cog/comp neuro experience before grad school.

Details below, feel free to reach out with questions!

binghamton.interviewexchange.com/jobofferdeta...
June 11, 2024 at 2:19 PM
Thank you Benjamin for a fun conversation. Chance to learn about science...and more...from our discussion!
New episode!

I talked to @adekstreme.bsky.social about his work on spatial navigation & memory, invasive recordings in humans, the advantages of using multiple methods, his unusual path to a PhD, the problem with simple stories in cognitive neuro, & much more.

Thanks Arne for being a guest!

1/3
May 25, 2024 at 2:21 PM
Reposted by Arne Ekstrom
We're looking for a new postdoc to join my lab group! Please help spread the word. Our project is collaborative study with the Washington State Twin Registry (WSTR) and affords incredible research opportunities related to the behavior genetic study of social relationships and health. Details in link
www.dropbox.com
March 18, 2024 at 6:30 PM
Reposted by Arne Ekstrom
We have filled two positions but one is still open. Please apply to the position ending in 305– it’s a silly HR thing. Feel free to email me directly for more info.
March 24, 2024 at 12:18 PM
Reposted by Arne Ekstrom
My lab is recruiting new members for an NIH-funded project to uncover neural mechanisms of motivation and its regulation w fMRI neurofeedback and innovative multivariate modeling.  Please share! Full postings:
careers.duke.edu/job-invite/2... Postdocs
careers.duke.edu/job-invite/2... ResearchCoord
March 15, 2024 at 11:08 PM
Reposted by Arne Ekstrom
I really liked this as well!
January 20, 2024 at 2:11 PM
Reposted by Arne Ekstrom
Does the hippocampus play a time-limited or perpetual role in spatial memory?

In naturalistic tasks, the hippocampus is NOT necessary for gross representations of large-scale environments. But it plays a long-lasting role in memory for local layouts and details.

#neuroskyence @PsychSciSky
Impoverished details with preserved gist in remote and recent spatial memory following hippocampal a...
Cognitive Map Theory predicts that the hippocampus (HPC) plays a specialized, time-invariant role in supporting allocentric spatial memory, while Stan…
www.sciencedirect.com
January 5, 2024 at 5:59 PM
Reposted by Arne Ekstrom
I wrote a j-club commentary on a recent article published in #Jneurosci by @neurosteel.bsky.social et al. I discuss the phenomenon of retrieval-related 'anterior shift' and I highlight the implications that this work has on studies examining neural reinstatement.

www.jneurosci.org/content/44/1...
Memory Retrieval of Visuospatial Context is Supported by the Anterior Portions of High-Level Visual ...
Memory retrieval is believed to be accompanied by a reactivation (reinstatement) of the neuronal populations that were active when the event was initially experienced (for review, see [Rugg et al., 20...
www.jneurosci.org
January 3, 2024 at 7:11 PM
Very pleased to announce our recent paper on aging and spatial memory in PNAS with research scientist Dr. Li Zheng! We find both age-related and performance-related heterogeneity that contribute to older adults having, on average, worse spatial memory. Check it out! www.pnas.org/doi/10.1073/...
December 14, 2023 at 1:37 PM
Reposted by Arne Ekstrom
New paper in #Jneurosci !⭐
doi.org/10.1523/JNEU...

Prior work suggests that age-related reductions in neural selectivity are restricted to the scene-responsive cortex. We show that age effects for other visual categories are observed when selectivity is measured at the level of individual stimuli.
Dissociative effects of age on neural differentiation at the category and item level
Increasing age is associated with age-related neural dedifferentiation, a reduction in the selectivity of neural representations, which has been proposed to contribute to cognitive decline in older ag...
doi.org
November 30, 2023 at 7:32 PM
Reposted by Arne Ekstrom
My Dept is hiring at asst or associate level, casting a broad net over cognitive/developmental and/or neuroscience. See full description and apply at apply.interfolio.com/132419
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
apply.interfolio.com
September 18, 2023 at 5:20 PM
Reposted by Arne Ekstrom
www.ucl.ac.uk/work-at-ucl/...

Four new postdoc positions at University College London open for computational psychiatry study combining computational methods with two large RCTs to test whether different antidepressants treat depression via different RL mechanism
October 30, 2023 at 4:32 AM