Marit Petzka
@MaritPetzka
Followers
337
Following
529
Media
0
Statuses
166
cognitive neuroscience: memory. sleep. replay. postdoc: SchuckLab | Uni Hamburg
Berlin, Germany
Joined January 2017
IT IS NOT A PREPRINT ANYMORE! You find the published paper here: https://t.co/ymEC5QapfS 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!
cell.com
Petzka et al. provide evidence that post-learning sleep spindles track learning-related cortical networks and thereby facilitate memory consolidation.
🔔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. https://t.co/ghVmWTwdVZ
3
19
63
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
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...
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! https://t.co/4qfFoZlm6x. Fresh from the (virtual) print now in @TrendsNeuro , 1/4
0
8
41
Now online in @CurrentBiology ! 📢💥 Using 7T precision fMRI, we discovered new organizational principles of human entorhinal cortex and of human hippocampal-entorhinal system. https://t.co/1x2UMWlUMo With @doellerlab, Menno Witter, @DanielMargulies, @Neuro_Conn. 🧵👇 1/5
2
38
126
This is finally out today in @PLOSCompBiol - find the final updated and improved version here: https://t.co/gKgBOVRHC9 with @nico_schuck @summerfieldlab @SaxeLab @PMuhleKarbe and twitterless Léo
journals.plos.org
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...
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. https://t.co/Q2PAiBSwf9
0
15
47
🚨 New preprint on the role of eating disorder symptoms in accelerating response vigor during foraging decisions 💫 w/ Sam Hall-McMaster 📜Link: https://t.co/czW9f3t0aT 💻Code and data: https://t.co/C2lep57X4k Funded by @AvHStiftung @mpib_berlin
github.com
Contribute to ozika/ed-foraging-hall-mcmaster-and-zika development by creating an account on GitHub.
1
6
14
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
41
244
1K
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
227
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. https://t.co/hEKPqMzhJX (1/6)
1
11
42
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:
nature.com
Nature - Human piriform and mediotemporal neurons encode odours, and signal how we perceive, rate and identify scents.
6
16
62
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
8
30
🧵1/ Very excited to share new consortium paper celebrating @CenturyOfEEG @academicEEG & predicting its impact on #neuroscience & society over the next 100 years @NatureHumBehav #EEG100
https://t.co/itIsEWR5Ic
0
2
3
If you'd like a quick read on your coffee break, check out our new @TrendsCognSci article on active forgetting during sleep
0
10
21
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. https://t.co/DHneW8AUo7 Fun teamwork w @koch_means_cook @OndrejZika @rasmusbruckner
journals.plos.org
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...
0
11
43
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.
1
3
18
#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. https://t.co/EKXhrcJbUC w/@Alex_C_Schmid @smkaps @Chris_I_Baker D.Kravitz🧵
nature.com
Nature Neuroscience - Task demands are a primary determiner of behavior and neurophysiology. Here the authors discuss how understanding their influence through multitask studies and tests of...
2
71
217
I love this.
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! https://t.co/DdOKAkDl8i
0
1
2
🌟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
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
https://t.co/0xjURU3h5P
1
13
41
✨ 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] https://t.co/zqLlYkAQ3k
biorxiv.org
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...
2
21
71
What began as a slightly intoxicated walk on Huntington beach in California with my buddy @b_j_griffiths last summer, ended in a published paper today in @CommsPsychol. (1/7)
2
16
42
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!
New preprint! “N2 Sleep Inspires Insight” – dream collab (pun intended) with my partner in crime @MaritPetzka and @nico_schuck
https://t.co/VYCHDwzgEY
1
7
25