@MaritPetzka

cognitive neuroscience: memory. sleep. replay. postdoc: SchuckLab | Uni Hamburg

 Berlin, Germany
Joined January 2017
  • Tweets158
  • Following312
  • Followers322
IT IS NOT A PREPRINT ANYMORE! You find the published paper here:cell.com/current-biology/ful… Huge THANKS to @AlexChatburn @IanCharest George Balanos and of course to @BStaresina. We would also like to thank the reviewers who gave valuable comments that massively improved the paper!

Sleep spindles track cortical learning patterns for memory consolidation

Petzka et al. provide evidence that post-learning sleep spindles track learning-related cortical networks and thereby facilitate memory consolidation.

cell.com
Marit Petzka@MaritPetzka3 Sep 2021
🔔Check out our new preprint! We show that sleep spindles track cortical learning patterns for memory consolidation. Great teamwork with @AlexChatburn @IanCharest George Balanos and @BStaresina. biorxiv.org/content/10.1101/…

Sleep spindles track cortical learning patterns for memory consolidation

Memory consolidation, the transformation of labile memory traces into stable long-term representations, is facilitated by post-learning sleep. Computational and biophysical models suggest that sleep...

biorxiv.org
3
18
1
58
Our @TrendsNeuro review on task representational spaces in OFC/vmPFC and in deep RL models is now out! Had a great time working on it with @nir_moneta and @nico_schuck, check it out here: cell.com/trends/neuroscience…

Representational spaces in orbitofrontal and ventromedial prefrontal cortex: task states, values,...

The orbitofrontal cortex (OFC) and ventromedial-prefrontal cortex (vmPFC) play a key role in decision-making and encode task states in addition to expected value. We review evidence suggesting a...

cell.com
Nir Moneta@nir_moneta15 Nov 2024
Excited to share our review, w. @ShanyGrossman (shared 1st!) and @nico_schuck where we discuss representational spaces in OFC/vmPFC and in deep RL models, featuring values, states and much more! cell.com/trends/neuroscience…. Fresh from the (virtual) print now in @TrendsNeuro , 1/4

Representational spaces in orbitofrontal and ventromedial prefrontal cortex: task states, values,...

The orbitofrontal cortex (OFC) and ventromedial-prefrontal cortex (vmPFC) play a key role in decision-making and encode task states in addition to expected value. We review evidence suggesting a...

cell.com
7
39
2,147
Marit Petzka retweeted
Daniel Reznik@reznikdan4 Nov 2024
Now online in @CurrentBiology ! 📢💥 Using 7T precision fMRI, we discovered new organizational principles of human entorhinal cortex and of human hippocampal-entorhinal system. doi.org/10.1016/j.cub.2024.1… With @doellerlab, Menno Witter, @DanielMargulies, @Neuro_Conn. 🧵👇 1/5
2
38
2
127
18,434
Marit Petzka retweeted
Anika Löwe@anika_loewe31 Oct 2024
This is finally out today in @PLOSCompBiol - find the final updated and improved version here: journals.plos.org/ploscompbi… with @nico_schuck @summerfieldlab @SaxeLab @PMuhleKarbe and twitterless Léo

Abrupt and spontaneous strategy switches emerge in simple regularised neural networks

Author summary Insights, or aha-moments, are a remarkable phenomenon in human cognition that is unique in a number of ways: they are accompanied by a powerful subjective experience, occur abruptly...

journals.plos.org
Anika Löwe@anika_loewe23 Feb 2023
New Preprint! We often learn gradually, but sometimes things occur to us in a flash, aka aha-moment. Why? We explored the comp. mechanisms of spontaneous periods of fast learning & show they arise even in simple NNs. arxiv.org/abs/2302.11351
1
13
2
44
7,491
Marit Petzka retweeted
Ondrej Zika@OndrejZika29 Oct 2024
🚨 New preprint on the role of eating disorder symptoms in accelerating response vigor during foraging decisions 💫 w/ Sam Hall-McMaster 📜Link: osf.io/preprints/psyarxiv/kz… 💻Code and data: github.com/ozika/ed-foraging… Funded by @AvHStiftung @mpib_berlin
1
6
14
1,079
Marit Petzka retweeted
Marcel Binz@marcel_binz28 Oct 2024
Excited to announce Centaur -- the first foundation model of human cognition. Centaur can predict and simulate human behavior in any experiment expressible in natural language. You can readily download the model from @huggingface and test it yourself: huggingface.co/marcelbinz/Ll…

marcelbinz/Llama-3.1-Centaur-70B-adapter · Hugging Face

We’re on a journey to advance and democratize artificial intelligence through open source and open science.

huggingface.co
39
232
61
1,170
236,077
Marit Petzka retweeted
Frieda Born@FriedaBorn15 Oct 2024
Why do some memories fade in seconds, while others stay with us for life? Working Memory (WM) holds info for just moments, but certain bits manage to stick around and make it into Long-Term Memory (LTM). In our new ⚡️preprint⚡️, we examined what helps these memories stick. 1/
5
33
6
221
25,207
Marit Petzka retweeted
HelfrichLab@HelfrichLab14 Oct 2024
Does sleep free cognitive resources for efficient next-day processing? Are processing capacities similar in human and rodent sleep? How does the sleeping brain balance efficiency and robustness? New paper led by @HahnMic to answer these questions. sciencedirect.com/science/ar… (1/6)
1
8
1
38
4,093
Marit Petzka retweeted
Marcel Kehl@MS_Kehl9 Oct 2024
1/7: We are excited that our paper "Single-neuron representations of odours in the human brain" was published today in @Nature. @humansingleunit,@RWTH @UniBonn, @MarcSpehr, @katohla, @UniofOxford, @OxNeuro, #Olfaction Link: t.ly/7kioB

Single-neuron representations of odours in the human brain

Nature - Human piriform and mediotemporal neurons encode odours, and signal how we perceive, rate and identify scents.

nature.com
6
14
3
62
6,436
Excited to share our brand-new work shedding some light on the neural mechanisms behind one of human’s coolest cognitive feats: compositional generalization of structural knowledge! A Tweeprint-Thread 🧵 1/n
1
7
3
27
4,064
Check out our consortium paper on the past, present and future of #EEG 🤩 @CenturyOfEEG @AcademicEEG – at Vienna, Austria
Faisal Mushtaq@faisalmushtaq22 Aug 2024
🧵1/ Very excited to share new consortium paper celebrating @CenturyOfEEG @academicEEG & predicting its impact on #neuroscience & society over the next 100 years @NatureHumBehav #EEG100 leeds.ac.uk/main-index/news/…
2
3
228
Marit Petzka retweeted
Scott Cairney@sacairney21 Aug 2024
If you'd like a quick read on your coffee break, check out our new @TrendsCognSci article on active forgetting during sleep doi.org/10.1016/j.tics.2024.…
9
1
21
2,448
Marit Petzka retweeted
Nico Schuck@nico_schuck16 Aug 2024
Do we learn differently from surprises as we age? We asked this using a RL task that deconfounded outcome probability & PE magnitude. Older adults learned more from large PEs than young adults. t.ly/DhjLo Fun teamwork w @koch_means_cook @OndrejZika @rasmusbruckner

Influence of surprise on reinforcement learning in younger and older adults

Author summary Learning is a skill that requires a finely adjusted process of extracting just the right information from past experiences to benefit future choices. As we age, this process begins to...

journals.plos.org
10
2
42
5,233
Marit Petzka retweeted
Frieda Born@FriedaBorn6 Aug 2024
Excited to be in Boston for @CogCompNeuro 2024 to discuss how WM retrieval impacts LTM at our poster today! Also, check out our collaborative work on evaluating vision models 🤖 with a new multi-level similarity judgment dataset (A113), presented by @lukas_mut & @AndrewLampinen.
This Post is from an account that no longer exists. Learn more
1
3
1
17
2,685
Marit Petzka retweeted
Matthias Nau@NauMatt29 Jul 2024
#CogNeuro seeks unified theories of behavioral, physiological, and mental states. To this aim, our @NatureNeuro Perspective proposes a new framework centered on #TaskDemands & across-task generalization. nature.com/articles/s41593-0… w/@Alex_C_Schmid @smkaps @Chris_I_Baker D.Kravitz🧵
2
67
7
212
26,136
Marit Petzka retweeted
Ondrej Zika@OndrejZika25 Jul 2024
I love this.
Anne Collins@Anne_On_Tw3 Jul 2024
I finally finished writing my fun RL project during sabbatical in France. I first presented on this a year ago, but I'm still puzzled by the results, and what they mean for human reinforcement learning! Feedback welcome! osf.io/preprints/psyarxiv/he…
1
2
290
Marit Petzka retweeted
Omer Sharon@omerxsharon9 Jul 2024
🌟Our new piece on sleep is out! 🌟 We hope there's something new for everyone—sleep enthusiasts and wake scientists alike. We've aimed to make it engaging and accessible for a wide audience, perfect for your summer vacation or bedtime relaxation. We'd love to hear your thoughts
PLOS Biology@PLOSBiology9 Jul 2024
Why is #sleep so widespread in animals? @sleepdiplomat @omerxsharon @etoosh &co explore 8 exciting new discoveries in #SleepScience, discussing how these expand our understanding of sleep's function at cellular, organismal, societal levels #PLOSBiology plos.io/4bvllco
1
13
2
40
4,029
✨ New (updated) preprint! ✨ We find that "Replay in human visual cortex is linked to the formation of successor representations and independent of consciousness"! 🧠 Fabulous team work with @lenikip, @koch_means_cook & @nico_schuck! 🌟 🧵 👇 [1/5] biorxiv.org/content/10.1101/…

Replay in Human Visual Cortex is Linked to the Formation of Successor Representations and Indepen...

Humans automatically infer higher-order relationships between events in the environment from their statistical co-occurrence, often without conscious awareness. Neural replay of task representations...

biorxiv.org
2
19
1
67
10,430
Wondering whether insight is more likely after sleep? Check out our pre-print and Anikas summary below. That was fun @anika_loewe & @nico_schuck & twitterless Maria Tzegka!
Anika Löwe@anika_loewe1 Jul 2024
New preprint! “N2 Sleep Inspires Insight” – dream collab (pun intended) with my partner in crime @MaritPetzka and @nico_schuck biorxiv.org/content/10.1101/…

N2 Sleep Inspires Insight

Humans sometimes have an insight that leads to a sudden and drastic performance im-provement on the task they are working on. The precise origins of such insights are unknown. Some evidence has shown...

biorxiv.org
1
6
23
2,323
Thrilled to announce that our work on the role of ripples in memory reactivation during human NREM sleep has been published in @NatureComms. With the amazing @t_staudigl, @b_j_griffiths, and @mervekutlu_ nature.com/articles/s41467-0…

Spindle-locked ripples mediate memory reactivation during human NREM sleep

Nature Communications - Whether and how spindle-locked ripples contribute to memory consolidation by mediating memory reactivation in humans is not fully understood. The authors show that ripples...

nature.com
3
29
1
87
9,254
Load more