@ckerren.bsky.social
Postdoc Max Planck Institute for Human Cognitive and Brain Sciences.
Pinned
ckerren.bsky.social
@ckerren.bsky.social
· Apr 29
🧠✨How do we rebuild our memories? In our new study, we show that hippocampal ripples kickstart a coordinated expansion of cortical activity that helps reconstruct past experiences.
We recorded iEEG from patients during memory retrieval... and found something really cool 👇(thread)
We recorded iEEG from patients during memory retrieval... and found something really cool 👇(thread)
Reposted
How prediction error drives memory updating: role of locus coeruleus–hippocampal interactions
Looks interesting, from Groves et al
#neuroskyence #psychscisky #cognition
Looks interesting, from Groves et al
#neuroskyence #psychscisky #cognition
How prediction error drives memory updating: role of locus coeruleus–hippocampal interactions
The brain constantly generates predictions based on one’s knowledge of the world, as captured in memory. When these predictions are in error, our know…
www.sciencedirect.com
November 14, 2025 at 9:22 AM
How prediction error drives memory updating: role of locus coeruleus–hippocampal interactions
Looks interesting, from Groves et al
#neuroskyence #psychscisky #cognition
Looks interesting, from Groves et al
#neuroskyence #psychscisky #cognition
Reposted
Please repost! Fully funded four-year PhD studentship opportunity on sleep deprivation and neurovascular dysfunction on the BBSRC Yorkshire Bioscience Doctoral Training Partnership, including annual stipend, research costs and home tuition fees tinyurl.com/ms7v2pcx
Disrupted Sleep: Mechanisms Linking Sleep Deprivation, Neurovascular Dysfunction, and Metabolic Pathways at Leeds Beckett University on FindAPhD.com
PhD Project - Disrupted Sleep: Mechanisms Linking Sleep Deprivation, Neurovascular Dysfunction, and Metabolic Pathways at Leeds Beckett University, listed on FindAPhD.com
tinyurl.com
November 14, 2025 at 1:53 PM
Please repost! Fully funded four-year PhD studentship opportunity on sleep deprivation and neurovascular dysfunction on the BBSRC Yorkshire Bioscience Doctoral Training Partnership, including annual stipend, research costs and home tuition fees tinyurl.com/ms7v2pcx
Reposted
Time, space, memory and brain–body rhythms — a Perspective by György Buzsáki
#neuroscience #neuroskyence
www.nature.com/articles/s41...
#neuroscience #neuroskyence
www.nature.com/articles/s41...
Time, space, memory and brain–body rhythms - Nature Reviews Neuroscience
Understanding how the brain represents experienced time and how representations of space and time are integrated to form episodic memories has been a goal of much neuroscientific research. In this Per...
www.nature.com
November 13, 2025 at 11:43 AM
Time, space, memory and brain–body rhythms — a Perspective by György Buzsáki
#neuroscience #neuroskyence
www.nature.com/articles/s41...
#neuroscience #neuroskyence
www.nature.com/articles/s41...
Reposted
What aspects of human knowledge do vision models like CLIP fail to capture, and how can we improve them? We suggest models miss key global organization; aligning them makes them more robust. Check out LukasMuttenthaler's work, finally out (in Nature!?) www.nature.com/articles/s41... + our blog! 1/3
Aligning machine and human visual representations across abstraction levels - Nature
Aligning foundation models with human judgments enables them to more accurately approximate human behaviour and uncertainty across various levels of visual abstraction, while additionally improving th...
www.nature.com
November 12, 2025 at 4:50 PM
What aspects of human knowledge do vision models like CLIP fail to capture, and how can we improve them? We suggest models miss key global organization; aligning them makes them more robust. Check out LukasMuttenthaler's work, finally out (in Nature!?) www.nature.com/articles/s41... + our blog! 1/3
Reposted
Delighted to share our new preprint!
We show that rhythmic light stimulation produces multiplexed oscillatory responses at fundamental and harmonic frequencies that are spatially, temporally, and functionally distinct.
Read on for the details [1/6]
www.biorxiv.org/content/10.1...
#neuroskyence
We show that rhythmic light stimulation produces multiplexed oscillatory responses at fundamental and harmonic frequencies that are spatially, temporally, and functionally distinct.
Read on for the details [1/6]
www.biorxiv.org/content/10.1...
#neuroskyence
Rhythmic light stimulation elicits multiple concurrent neural responses that separably shape human perception
Rhythmic light stimulation offers solutions to innumerable cognitive and neurological disorders. However, like any neuromodulatory technique, responses to rhythmic light stimulation are highly variabl...
www.biorxiv.org
November 7, 2025 at 11:55 AM
Delighted to share our new preprint!
We show that rhythmic light stimulation produces multiplexed oscillatory responses at fundamental and harmonic frequencies that are spatially, temporally, and functionally distinct.
Read on for the details [1/6]
www.biorxiv.org/content/10.1...
#neuroskyence
We show that rhythmic light stimulation produces multiplexed oscillatory responses at fundamental and harmonic frequencies that are spatially, temporally, and functionally distinct.
Read on for the details [1/6]
www.biorxiv.org/content/10.1...
#neuroskyence
Reposted
Please repost! I am looking for a PhD candidate in the area of Computational Cognitive Neuroscience to start in early 2026.
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
November 4, 2025 at 1:57 PM
Please repost! I am looking for a PhD candidate in the area of Computational Cognitive Neuroscience to start in early 2026.
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
Reposted
I wrote a thing on episodic memory and systems consolidation. I hope you all enjoy it and/or find it interesting.
A neural state space for episodic memories
www.sciencedirect.com/science/arti...
#neuroskyence #psychscisky #cognition 🧪
A neural state space for episodic memories
www.sciencedirect.com/science/arti...
#neuroskyence #psychscisky #cognition 🧪
A neural state space for episodic memories
Episodic memories are highly dynamic and change in nonlinear ways over time. This dynamism is not captured by existing systems consolidation theories …
www.sciencedirect.com
November 3, 2025 at 12:56 PM
I wrote a thing on episodic memory and systems consolidation. I hope you all enjoy it and/or find it interesting.
A neural state space for episodic memories
www.sciencedirect.com/science/arti...
#neuroskyence #psychscisky #cognition 🧪
A neural state space for episodic memories
www.sciencedirect.com/science/arti...
#neuroskyence #psychscisky #cognition 🧪
Reposted
🚨Preprint: Semantic Tuning of Single Neurons in the Human Medial Temporal Lobe
1/8: How do human neurons encode meaning?
In this work, led by Katharina Karkowski, we recorded hundreds of human MTL neurons to study semantic coding in the human brain:
doi.org/10.1101/2025...
1/8: How do human neurons encode meaning?
In this work, led by Katharina Karkowski, we recorded hundreds of human MTL neurons to study semantic coding in the human brain:
doi.org/10.1101/2025...
Semantic Tuning of Single Neurons in the Human Medial Temporal Lobe
The Medial Temporal Lobe (MTL) is key to human cognition, supporting memory, emotional processing, navigation, and semantic coding. Rare direct human MTL recordings revealed concept cells, which were ...
doi.org
October 27, 2025 at 3:32 PM
🚨Preprint: Semantic Tuning of Single Neurons in the Human Medial Temporal Lobe
1/8: How do human neurons encode meaning?
In this work, led by Katharina Karkowski, we recorded hundreds of human MTL neurons to study semantic coding in the human brain:
doi.org/10.1101/2025...
1/8: How do human neurons encode meaning?
In this work, led by Katharina Karkowski, we recorded hundreds of human MTL neurons to study semantic coding in the human brain:
doi.org/10.1101/2025...
Reposted
Understanding the flexibility of working memory: Compositionality, generative processing, anchors and holistic representations
www.sciencedirect.com/science/arti...
#neuroscience
www.sciencedirect.com/science/arti...
#neuroscience
Understanding the flexibility of working memory: Compositionality, generative processing, anchors and holistic representations
The typical conception of working memory is a mechanism to temporarily hold multiple discrete objects in service of other cognitive tasks in an item-b…
www.sciencedirect.com
October 25, 2025 at 12:45 PM
Understanding the flexibility of working memory: Compositionality, generative processing, anchors and holistic representations
www.sciencedirect.com/science/arti...
#neuroscience
www.sciencedirect.com/science/arti...
#neuroscience
Reposted
I’m excited to share my recent preprint on a neural network model of free recall that learns multiple memory strategies including the memory palace!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
October 21, 2025 at 3:36 AM
I’m excited to share my recent preprint on a neural network model of free recall that learns multiple memory strategies including the memory palace!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted
Really enjoyed working on this with Luise @graichenl.bsky.social Congrats! 🎉
Another piece of evidence highlighting how important visual space and the oculomotor system are for humans (and other primates). 👀🧠
Another piece of evidence highlighting how important visual space and the oculomotor system are for humans (and other primates). 👀🧠
✨My first first-author paper is out✨
Entorhinal grid-like codes for visual space during memory formation in @natcomms.nature.com ➡️ rdcu.be/eLRm2
Big thanks to everyone @isabellacwagner.bsky.social, @tobiasstaudigl.bsky.social, @olejensen.bsky.social, @doellerlab.bsky.social, @clauslamm.bsky.social
Entorhinal grid-like codes for visual space during memory formation in @natcomms.nature.com ➡️ rdcu.be/eLRm2
Big thanks to everyone @isabellacwagner.bsky.social, @tobiasstaudigl.bsky.social, @olejensen.bsky.social, @doellerlab.bsky.social, @clauslamm.bsky.social
Entorhinal grid-like codes for visual space during memory formation
Nature Communications - Eye movements during scene viewing are tied to grid-like codes in the entorhinal cortex. Grid signals are specific to later remembered scenes, covary with activity in...
rdcu.be
October 21, 2025 at 7:18 AM
Really enjoyed working on this with Luise @graichenl.bsky.social Congrats! 🎉
Another piece of evidence highlighting how important visual space and the oculomotor system are for humans (and other primates). 👀🧠
Another piece of evidence highlighting how important visual space and the oculomotor system are for humans (and other primates). 👀🧠
Reposted
New preprint written with the wonderful philosopher William Ramsey: Mental Representation Without Neural Representation: Understanding The Evidence osf.io/preprints/ps...
OSF
osf.io
October 18, 2025 at 8:18 AM
New preprint written with the wonderful philosopher William Ramsey: Mental Representation Without Neural Representation: Understanding The Evidence osf.io/preprints/ps...
Reposted
What makes an image memorable? And can we predict image memorability using pretrained vision encoders? We explored activations, attention distributions, image patch uniformity and sparse autoencoder losses using image representations across the layers of CLIP, DINOv2 and SigLIP2.
October 15, 2025 at 9:10 AM
What makes an image memorable? And can we predict image memorability using pretrained vision encoders? We explored activations, attention distributions, image patch uniformity and sparse autoencoder losses using image representations across the layers of CLIP, DINOv2 and SigLIP2.
Reposted
Can Only Meat Machines be Conscious? New paper in Trends in Cognitive Sciences, free download until November 26 with this URL: authors.elsevier.com/a/1luwh4sIRv...
authors.elsevier.com
October 8, 2025 at 1:06 PM
Can Only Meat Machines be Conscious? New paper in Trends in Cognitive Sciences, free download until November 26 with this URL: authors.elsevier.com/a/1luwh4sIRv...
Reposted
Memory problems will change how you see the world...literally 👀
Across two new papers, we examined the eye movement patterns of younger adults, older adults, individuals with mild cognitive impairment, and amnesic cases.
1/5
Across two new papers, we examined the eye movement patterns of younger adults, older adults, individuals with mild cognitive impairment, and amnesic cases.
1/5
October 8, 2025 at 1:25 PM
Memory problems will change how you see the world...literally 👀
Across two new papers, we examined the eye movement patterns of younger adults, older adults, individuals with mild cognitive impairment, and amnesic cases.
1/5
Across two new papers, we examined the eye movement patterns of younger adults, older adults, individuals with mild cognitive impairment, and amnesic cases.
1/5
Reposted
I’m pleased to share our new paper, “Hippocampal ripple diversity organizes neuronal reactivation dynamics in the offline brain”, out in @cp-neuron.bsky.social !
With @vitorlds.bsky.social and David Dupret, we show that diversity in ripple current profiles shapes reactivation dynamics
With @vitorlds.bsky.social and David Dupret, we show that diversity in ripple current profiles shapes reactivation dynamics
October 2, 2025 at 3:46 PM
I’m pleased to share our new paper, “Hippocampal ripple diversity organizes neuronal reactivation dynamics in the offline brain”, out in @cp-neuron.bsky.social !
With @vitorlds.bsky.social and David Dupret, we show that diversity in ripple current profiles shapes reactivation dynamics
With @vitorlds.bsky.social and David Dupret, we show that diversity in ripple current profiles shapes reactivation dynamics
Exciting work from Fei Wang and @andrejbicanski.bsky.social. A new circuit-level model of the subiculum explains vector trace cells and highlights how mismatch detection in the CA1–subiculum pathway updates spatial memory, extending the canonical hippocampal model!
New preprint from the lab and great work by Fei Wang. We show how subiculum trace vector cells can be modeled consistent with known effects in CA1. Traces are driven by a mismatch learning rule to keep associative memories in line with experience.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Dynamic updating of cognitive maps via traces of experience in the subiculum
In the classical view of hippocampal function, the subiculum is assigned the role as the output layer. In spatial paradigms, some subiculum neurons manifest as so-called boundary vector cells (BVCs), ...
www.biorxiv.org
October 3, 2025 at 7:29 AM
Exciting work from Fei Wang and @andrejbicanski.bsky.social. A new circuit-level model of the subiculum explains vector trace cells and highlights how mismatch detection in the CA1–subiculum pathway updates spatial memory, extending the canonical hippocampal model!
Reposted
1/3: What happens in the #brain when moving your eyes? Using closed-loop #EyeTracking with simultaneous intracranial #EEG in humans, we found that: *Saccades boost visual responses but reduce network connectivity. *Excitability changes and visual features are coded along the saccade–fixation cycle.
September 27, 2025 at 4:37 PM
1/3: What happens in the #brain when moving your eyes? Using closed-loop #EyeTracking with simultaneous intracranial #EEG in humans, we found that: *Saccades boost visual responses but reduce network connectivity. *Excitability changes and visual features are coded along the saccade–fixation cycle.
Reposted
Reposted
🚨 New preprint! Impact of Task Similarity and Training Regimes on Cognitive Transfer and Interference 🧠
We compare humans and neural networks in a learning task, showing how training regime and task similarity interact to drive transfer or interference.
www.biorxiv.org/content/10.1...
We compare humans and neural networks in a learning task, showing how training regime and task similarity interact to drive transfer or interference.
www.biorxiv.org/content/10.1...
Impact of Task Similarity and Training Regimes on Cognitive Transfer and Interference
Learning depends not only on the content of what we learn, but also on how we learn and on how experiences are structured over time. To investigate how task similarity and training regime interact dur...
www.biorxiv.org
September 23, 2025 at 11:58 AM
🚨 New preprint! Impact of Task Similarity and Training Regimes on Cognitive Transfer and Interference 🧠
We compare humans and neural networks in a learning task, showing how training regime and task similarity interact to drive transfer or interference.
www.biorxiv.org/content/10.1...
We compare humans and neural networks in a learning task, showing how training regime and task similarity interact to drive transfer or interference.
www.biorxiv.org/content/10.1...
Reposted
New preprint! How can you remember an image you saw once, even after seeing thousands of them? We find a role for humble mid-level visual cortex in high-capacity, one-shot learning. doi.org/10.1101/2025.09.22.677855 🧵🧪1/
Neuronal signatures of successful one-shot memory in mid-level visual cortex
High-capacity, one-shot visual recognition memory challenges theories of learning and neural coding because it requires rapid, robust, and durable representations. Most studies have focused on the hip...
doi.org
September 23, 2025 at 3:09 PM
New preprint! How can you remember an image you saw once, even after seeing thousands of them? We find a role for humble mid-level visual cortex in high-capacity, one-shot learning. doi.org/10.1101/2025.09.22.677855 🧵🧪1/
Reposted
Our article is out in Annual Review of Vision Science: “Visual Image Reconstruction from Brain Activity via Latent Representation”
We trace the path from early brain decoding to modern NeuroAI, highlight progress & pitfalls, and discuss future directions www.annualreviews.org/content/jour...
We trace the path from early brain decoding to modern NeuroAI, highlight progress & pitfalls, and discuss future directions www.annualreviews.org/content/jour...
Visual Image Reconstruction from Brain Activity via Latent Representation | Annual Reviews
Visual image reconstruction, the decoding of perceptual content from brain activity into images, has advanced significantly with the integration of deep neural networks (DNNs) and generative models. T...
www.annualreviews.org
September 18, 2025 at 3:40 AM
Our article is out in Annual Review of Vision Science: “Visual Image Reconstruction from Brain Activity via Latent Representation”
We trace the path from early brain decoding to modern NeuroAI, highlight progress & pitfalls, and discuss future directions www.annualreviews.org/content/jour...
We trace the path from early brain decoding to modern NeuroAI, highlight progress & pitfalls, and discuss future directions www.annualreviews.org/content/jour...
Reposted
Interested in hippocampal dynamics and their interactions with cortical rhythms?
Our physically constrained model of cortico-hippocampal interactions - complete with fast geometrically informed numerical simulation (available at embedded github repo)
www.biorxiv.org/content/10.1...
Our physically constrained model of cortico-hippocampal interactions - complete with fast geometrically informed numerical simulation (available at embedded github repo)
www.biorxiv.org/content/10.1...
September 14, 2025 at 11:35 AM
Interested in hippocampal dynamics and their interactions with cortical rhythms?
Our physically constrained model of cortico-hippocampal interactions - complete with fast geometrically informed numerical simulation (available at embedded github repo)
www.biorxiv.org/content/10.1...
Our physically constrained model of cortico-hippocampal interactions - complete with fast geometrically informed numerical simulation (available at embedded github repo)
www.biorxiv.org/content/10.1...
Reposted
👩💻 New preprint out (FIRST one of my PhD journey) with the incredible @lindedomingo.bsky.social @ortiztudela.bsky.social @gonzalezgarcia.bsky.social
"From sudden perceptual learning to enduring engrams: A representational perspective" 🧠
doi.org/10.31234/osf...
"From sudden perceptual learning to enduring engrams: A representational perspective" 🧠
doi.org/10.31234/osf...
September 12, 2025 at 10:54 AM
👩💻 New preprint out (FIRST one of my PhD journey) with the incredible @lindedomingo.bsky.social @ortiztudela.bsky.social @gonzalezgarcia.bsky.social
"From sudden perceptual learning to enduring engrams: A representational perspective" 🧠
doi.org/10.31234/osf...
"From sudden perceptual learning to enduring engrams: A representational perspective" 🧠
doi.org/10.31234/osf...
As always, brilliant stuff by @s-michelmann.bsky.social
🚀Excited to share our project: Canonical Representational Mapping for Cognitive Neuroscience. @schottdorflab.bsky.social and I propose a novel multivariate method to isolate neural representations aligned with specific cognitive hypotheses 🧵https://www.biorxiv.org/content/10.1101/2025.09.01.673485v1
September 5, 2025 at 6:31 PM
As always, brilliant stuff by @s-michelmann.bsky.social