#neuropaper — Public Fediverse posts

New #NeuroPaper, looks very interesting!

”Our study is a call for academics to clarify what they mean by ‘behavior’ wherever they study it, with the hope that this will foster interdisciplinary studies that will improve our understanding of behavioral phenomena.”

Everyone knows what behavior is but they just don’t agree on it

#ElHadyLab #Behaviour

New #fMRI + #ComputationalModel #NeuroPaper by #SummerfieldLab:

Goal-seeking compresses neural codes for space in the human hippocampus and orbitofrontal cortex

Another really cool #NeuroPaper, this one about rule-switching:
Sharp-wave-ripple-associated activity in the medial prefrontal cortex supports spatial rule switching

#KloostermanLab #mPFC #Hippocampus #SWR #NeuroRats #Optogenetics

Potentially very interesting #NeuroPaper in #Humans:
Backbone spiking sequence as a basis for preplay, replay, and default states in human cortex

(Thanks to my colleague Hung-Tu for highlighting this one!)

(I’m not sure we can really say that preplay has been “robustly demonstrated” in rodents though…)

#Replay #Preplay #AnteriorTemporalLobe #MicroElectrodeArray #NeuroHuman

I am pleased to link here the second paper in our series investigating the connectivity between the ventral premotor cortex and the primary motor cortex by means of transcranial magnetic stimulation.

"The ventral premotor cortex (PMv) and primary motor cortex (M1) represent critical nodes of a parietofrontal network involved in grasping actions, such as power and precision grip. Here, we investigated how the functional PMv-M1 connectivity drives the dissociation between these two actions. We applied a PMv-M1 cortico-cortical paired associative stimulation (cc-PAS) protocol, stimulating M1 in both postero-anterior (PA) and antero-posterior (AP) directions, in order to induce long-term changes in the activity of different neuronal populations within M1. We evaluated the motor-evoked potential (MEP) amplitude, MEP latency and cortical silent period, in both PA and AP, during the isometric execution of precision and power grip, before and after the PMv-M1 cc-PAS. The repeated activation of the PMv-M1 cortico-cortical network with PA orientation over M1 did not change MEP amplitude or cortical silent period duration during both actions. In contrast, the PMv-M1 cc-PAS stimulation of M1 with an AP direction led to a specific modulation of precision grip motor drive. In particular, MEPs tested with AP stimulation showed a selective increase of corticospinal excitability during precision grip. These findings suggest that the more superficial M1 neuronal populations recruited by the PMv input are involved preferentially in the execution of precision grip actions."

Here is the link:
https://pubmed.ncbi.nlm.nih.gov/37526070/

Previous paper:
https://pubmed.ncbi.nlm.nih.gov/36327142/

#neuroscience #NeuroPaper #neurophysiology

A key idea behind the brain's ability to #flexibly and #rapidly #compute is its #shortterm #plasticity ! The mechanism was beautifully reviewed by the late Mark Stokes:

‘Activity-silent’ working memory in prefrontal cortex: a dynamic coding framework

https://www.cell.com/fulltext/S1364-6613(15)00102-3

Seeing ideas like these included in modern #ML models more and more now - extremely exciting to see how this will work out in #technology !

#neuroscience #neuropaper #neuralnetwork @neuroscience

Play and tickling responses map to the lateral columns of the rat periaqueductal gray
#BrechtLab #Neuroscience #NeuroPaper

Super thoughtful #neuroscience paper reconciling findings from work on #memory by factoring in generalisation abilities:

Organizing memories for generalization in complementary learning systems

by Weinan Sun, Madhu Advani, Nelson Spruston, Andrew Saxe & James E. Fitzgerald

https://www.nature.com/articles/s41593-023-01382-9

#newpaper #neuro #neuropaper #ML #neuralnetwork #learning @neuroscience

@elduvelle Oh yes, sure! Sorry, I had missed that detail about when to use it - shall use #neuropaper for casual paper sharing in the future! 🙂

That’s a strange paper… @adredish you might like it:
Using temperature to analyze the neural basis of a time-based decision

#Striatum #Neuroscience #NeuroRat #DecisionMaking #Time #NeuroPaper #Need2Read

What tags are you all following?
Here are mine but I’d like to add some more, particularly science-related:

#FediTips #Hippocampus #PlaceCells #Tetrodes #NatureIsBeautiful (yes… I’m the only one using it for now) #NeuroPaper #NeuroPaperThread #Neuroscience

@neuroecology @Neurograce #Hippocampus and #PlaceCells 😁 (if you’re me)
Otherwise… anything that you’re interested in and seems to exist and be populated!
For a newcomer I’d say #Feditips is really useful! And for a neuroscientist: #Neuroscience, #NeuroPaper, #NeuroPreprint … you’ll have to do a little bit of exploration!

New #Neuroscience paper, with potential implications for the pyramidal-cell specificity of some #Optogenetic stimulations:

“our results challenge the use of CaMKIIα promoter-driven protein expression as a selective tool in targeting cortical glutamatergic neurons using viral vectors”

CaMKIIα Promoter-Controlled Circuit Manipulations Target Both Pyramidal Cells and Inhibitory Interneurons in Cortical Networks
#NeuroPaper #Optogenetics

New review on the “spatial cells” across different species! Looks very interesting:
Neural mechanisms for spatial cognition across vertebrates
Vinepinsky & Segev 2023

Small but important comment: it is perfectly normal for place cells to have multiple #PlaceFields ! Only in very small environments (<80cm diameter) will you mostly see single-field place cells. The single field is probably more the exception than the rule in the natural world.

#NeuroPaper #Review #Neuroscience #PlaceCells #HeadDirectionCells #GridCells #BVCs #CrossSpecies

⤴️​ After reading this #NeuroPaper I have to say it is much more interesting than what I thought at first view! And particularly well-written, illustrated and clear!

A must-read for anyone interested in #Dopamine #ReinforcementLearning #Reward #Value #RewardPredictionError #Navigation #Shortcuts #Detours #CognitiveMap (maybe) #Inference with some future hints of #HippocampalReplay !
Congrats to all authors, let me know if any is on here!

Very interesting-looking paper with a cool #Maze in #rats by Krausz et al.:
Dual credit assignment processes underlie dopamine signals in a complex spatial environment

Please note that Hex-Maze is already taken by @L_Genzel 's study - which should really be cited! And Hexamaze is also taken (by me)!
Call it #GridMaze ;)

#NeuroPaper #Dopamine #ComplexSpace

@biorxivpreprint
⬆️ Check this new preprint from the Rondi-Reig team! Looks pretty interesting 👀​

#Hippocampus #Cerebellum #Foraging #PlaceCells #Mice #NeuroPaper

https://www.biorxiv.org/content/10.1101/2023.02.04.526971v1

#NeuroPaper #Claustrum
Influence of claustrum on cortex varies by area, layer, and cell type
The Claustrum is Cool!
@shaneomara Did you see this?

Hot off the press! 🔥​
https://doi.org/10.1016/j.neubiorev.2023.105042

We performed a meta-analysis of neuroimaging studies looking at interpersonal neural synchronization (INS) and contextualized the results using diverse public databases to develop new hypotheses on physiological processes potentially involved in INS.

What is he talking about, you ask? See below ⏬​

1/9

#NewPaper #PaperThread #NeuroPaper #NeuroPaperThread #NewNeuroPaper #NeuroScience #Neuro #Psych #Psychiatry #Psychology #Cognition #Brain #Communication #Science #Research #DataViz #DataScience
@neuroscience @neuro @cognition @fmri @phdstudents @academicchatter

Hi all 😃​
Our latest #Review on #SplitterCells is now published in @eLife !!
I will probably write a real thread on it when I get a chance... for now:

link: https://elifesciences.org/articles/82357

why: some neurons in the #Hippocampus (and other brain regions) of #Rats (and other mammals) have the fascinating ability to discriminate not just different presents, but different past or future states or trajectories in the same current situation. They could be related to #EpisodicMemory or #DecisionMaking 🤔​They are called 'trajectory-dependent cells' or Splitter Cells. 🔀​ We tried to make sense of them!

what: Hippocampal Splitter cells do a lot of puzzling stuff. For example there's a lot of them even in tasks that do not require the Hippocampus to be solved. They spread asymmetrically on a linear track leading to a choice point - 'past' splitters around the start and 'future' splitters towards the choice point. #TimeCells cells can be splitter cells (but they're usually #PlaceCells). Splitter cells evolve with experience, or maybe it is performance, nobody really knows. ​⁉️​ ... and a lot more weird stuff

conclusion: Two different computational models, the temporal context model and the latent state model, each explain a subset of the properties of splitter cells... so perhaps the Hippocampus implements both! But more experiments are needed to disentangle them 😄​

now what: questions or comments? Please let us know!! ✍️​

#Neuroscience #Cognition #NeuroPaper

@kendmiller @NicoleCRust
Since we can combine hashtags in searches, pinned hashtags etc. I vote for #NeuroPaper whenever we’re referring to… a paper in neuroscience, and simply add the #Thread if it’s also a thread?
Also if it’s a preprint thread it could be #MastoPrint but preprints and papers are really not that different nowadays…

For neuro paper threads: sigmoid.social/about/more has already claimed #PaperThread and #NewPaper (the latter announcing a paper without a thread) for the AI community. I enjoy seeing their papers too, but we need a distinct tag for neuro papers. For a thread, somebody suggested a #TootSuite, and I had suggested a #MastoPiece, but maybe we want something simple like #NeuroPaperThread and #NeuroNewPaper? or mix and match, like #NeuroSuite for a thread and #NeuroPaper for a paper w/o a thread?? Decisions, decisions.

I nominate @NicoleCRust to be the hashtag czar. Decide for us Nicole! (And anyone else, weigh in to help inform our czar!) And from your lips, or at least typing fingers, to the Mastodon's ears ...

@toddhorowitz @LeonDLotter @phdstudents @academicchatter @neuroscience @cognition
@NicoleCRust
#neuroscience