@MNPompili

Pretending to be a behavior/systems neuroscientist @INS_Umr1106.

 Marseille, France
normalesup.org/~pompili/
Joined October 2018
  • Tweets175
  • Following588
  • Followers262
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Everyone knows that the dorsal and ventral hippocampus play different roles. But, have you ever wondered how the neurons in these areas differ in their functions? We've begun shedding light on this in a new preprint, just out in its final form! 🧵👇biorxiv.org/content/10.1101/… 1/11

Differential encoding of fear learning and fear expression in the ventral and dorsal hippocampus

While there is substantial evidence that the dorsal and ventral hippocampus play different roles during emotional learning, it is unknown how these roles are implemented. Here, we simultaneously...

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Most knowledge of sequence p/replay comes from single experiences. Now we reveal principles of generative coding enabling HPC to parallelize & bind time-compressed representations of 15 discontinuous experiences in single events in sleep @NatureNeuro: rdcu.be/dOjCv 1/6
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Marco Pompili retweeted
Jorrit Montijn@JMontijn10 Jul 2024
Hi all, with bittersweet feelings I present to you my final project (alas I'm out of funding). Strap in,buckle up & please RT! Now on bioRxiv: "Structured neural fluctuations can generate noise invariance and inter-areal gating at distinct timescales": doi.org/10.1101/2024.07.05.6… 1/
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Andre Fenton@aa_fenton23 May 2024
January 1992 in Prague Jan Bureš told me about place cells, and turned me into a scientist. This Perspective reminds us that such neurons don’t respond to stimuli. Network discharge (and knowledge) is internally-organized but interdependent on the world nature.com/articles/s41583-0…
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Simon Nilsson@nilssonsro22 May 2024
Reconceptualizing behavior as a sharable reagent: rdcu.be/dIFmr We present a platform for behavioral analysis called Simple Behavioral Analysis (SimBA). A sincere thank you to the community for their continued expert feedback and suggestions
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Michael Totty@MicTott20 May 2024
Dimensionality reduction beyond neural subspaces with slice tensor component analysis nature.com/articles/s41593-0…

Dimensionality reduction beyond neural subspaces with slice tensor component analysis

Nature Neuroscience - Neural activity does not always lie in a low-dimensional subspace. The authors extend this classic view to show that task-relevant information is distributed across multiple...

nature.com
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Very proud of @KouroshMaboudi for his conscientious work on nature.com/articles/s41586-0…, where he developed and applied a new method to track the spatial tuning of hippocampal neurons during offline periods and found that they can change during ripples after maze exposure. 1/3

Retuning of hippocampal representations during sleep

Nature - Using a Bayesian learning approach, a study tracks the spatial representations by individual hippocampal cells over time in freely moving rats, and provides insights into how ensemble...

nature.com
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To sum up: 1) representations related to different aspects of an emotional experience (fear expression vs. fear learning) are distributed differentially along the dorsoventral axis of the HPC. 10/11
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and 2) the emergence of mixed dorso-ventral assemblies provides a potential mechanism through which these distinct representations of learning and behavior can be combined to construct an integrated representation of the emotional experience across the whole HPC. 11/11
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A comprehensive review on cell assembly detection, must read for anyone looking to relate neuronal population activity to behaviour, memory, etc. I've had the project to integrate many of these methods in one @thepynapple package... time to do it! biorxiv.org/content/10.1101/…

DETECTION OF CELL ASSEMBLIES IN HIGH-DENSITY EXTRACELLULAR ELECTROPHYSIOLOGICAL RECORDINGS

Cell assemblies, i.e., concurrently active groups of neurons, likely underlie neural processing for higher brain functions. Recent technological progress has enabled large-scale recording of neuronal...

biorxiv.org
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✨Exciting news! Our research on parallel decision computations is just out in @NatureNeuro ! nature.com/articles/s41593-0… With it, here goes my first attempt at a #tweetprint ! 🧵
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Super excited to share that our work on uncovering neural assemblies in zebrafish using compositional RBMs has now been published in @eLife (thank you for the cool auto-generated cover😃)! 1/3 elifesciences.org/articles/8…
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