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dysmetric.bsky.social
dysmetric
@dysmetric.bsky.social
Translational neuroscience; non-motor functions of the cerebellum; psychopharmacology

Eukaryotic/eukaryote
A beautiful loop: An active inference theory of consciousness (2025)

New theory proposes active inference can ground 3 conditions for consciousness: An epistemic field (world model), Bayesian binding, and epistemic depth.

Discusses implications for silicon.

www.sciencedirect.com/science/arti...
https://sciencedirect.com/science/articl…
August 31, 2025 at 6:45 PM
Preprint reviews evidence for the Allostatic Theory of Oxytocin, suggesting it isn't a love-hormone/social-salience-modulator.

Instead, it increases plasticity, and flexibility, while reducing anxiety, and the effects of stress, to create a 'window of adaptation' to change.

osf.io/preprints/os...
OSF
osf.io
August 26, 2025 at 2:41 PM
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struggling with an analogy here but imagine NASA posting a meme about how excited they are to return aviation to the pre-jet age
July 31, 2025 at 9:48 PM
July 21, 2025 at 11:54 PM
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So cool, a novel archaeon with a super small genome and no metabolic genes!
"An unprecedented level of metabolic dependence on a host, a condition that challenges the functional distinctions between minimal cellular life and viruses."
www.biorxiv.org/content/10.1...
A cellular entity retaining only its replicative core: Hidden archaeal lineage with an ultra-reduced genome
Defining the minimal genetic requirements for cellular life remains a fundamental question in biology. Genomic exploration continually reveals novel microbial lineages, often exhibiting extreme genome...
www.biorxiv.org
June 27, 2025 at 4:29 AM
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Inferring context-dependent computations through linear approximations of prefrontal cortex dynamics
www.science.org/doi/10.1126/...
#neuroscience
Inferring context-dependent computations through linear approximations of prefrontal cortex dynamics
PFC neural responses during contextual decision-making are consistent with both recurrent and input-driven flexible computations.
www.science.org
January 3, 2025 at 7:00 PM
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Three distinct gamma oscillatory networks within cortical columns in macaque monkeys’ area V1
www.frontiersin.org/journals/neu...
#neuroscience
Frontiers | Three distinct gamma oscillatory networks within cortical columns in macaque monkeys’ area V1
IntroductionA fundamental property of the neocortex is its columnar organization in many species. Generally, neurons of the same column share stimulus prefer...
www.frontiersin.org
January 3, 2025 at 7:05 PM
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New work from the lab of Chengtian Zhao at Ocean University of China 🇨🇳 🐟
Technically superb, live imaging experiments visualise intraflagellar transport in zebrafish ciliated tissues, unveil the surprising breadth of intraflagellar transport speed.
https://buff.ly/41UJjMS
January 2, 2025 at 2:07 PM
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I just found one! go.bsky.app/QPFZpj9
November 25, 2024 at 10:17 PM
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Setting a good rhythm for my Sunday with this new eLife review from Ichim…Muresan on gamma oscillations - from neural processing to brain maintenance. Brain rhythms for breakfast. 1/10 #neuroscience 🧪🧠
The gamma rhythm as a guardian of brain health
Fast oscillations (30-150Hz), generated by internal brain mechanisms may be essential for the maintenance of healthy brain function.
elifesciences.org
November 24, 2024 at 4:13 PM
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xcited to share our new results! We (huge team effort led by post-doc extraordinaire Sylvie Lesuis) examined the effects of acute stress on threat memory generalization and engram ensemble architecture.
www.sciencedirect.com/science/arti...
Stress disrupts engram ensembles in lateral amygdala to generalize threat memory in mice
Stress induces aversive memory overgeneralization, a hallmark of many psychiatric disorders. Memories are encoded by a sparse ensemble of neurons acti…
www.sciencedirect.com
November 15, 2024 at 4:37 PM
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🌟 Cai Lab Nature (@natureportfolio.bsky.social) paper alert! In work led by Joe Zaki, we find that rest periods after learning not only stabilize new memories BUT ALSO integrate new memories with older ones from days past! (1/10)

Read it here: www.nature.com/articles/s41...
November 19, 2024 at 4:50 PM
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Our paper is published in the latest issue of NEURON. We examined the neural mechanisms involved in learning from the gains and losses of symbolic reinforcers in the ventral frontostriatal circuitry. 🧠
www.cell.com/neuron/abstr...
Ventral frontostriatal circuitry mediates the computation of reinforcement from symbolic gains and losses
Tang et al. show that OFC plays a more important role in learning from symbolic reinforcers than subcortical structures. OFC computes reinforcement signals and sends the information to the VS through ...
www.cell.com
November 21, 2024 at 1:27 PM
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Nature

Stress can disrupt memory and lead to needless anxiety — here’s how

In mice, stress altered the way that the brain formed memories, resulting in an unnecessary fear response.

www.nature.com/articles/d41...
Stress can disrupt memory and lead to needless anxiety — here’s how
In mice, stress altered the way that the brain formed memories, resulting in an unnecessary fear response.
www.nature.com
November 23, 2024 at 12:04 PM
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A tale of two algorithms: Structured slots explain prefrontal sequence memory and are unified with hippocampal cognitive maps
www.cell.com/neuron/fullt...
#Neuroscience
A tale of two algorithms: Structured slots explain prefrontal sequence memory and are unified with hippocampal cognitive maps
The algorithm of the prefrontal working memory system on sequence memory tasks is not well understood, whereas it is well understood for the hippocampal episodic memory system. This work shows a mathe...
www.cell.com
November 25, 2024 at 2:36 AM