#dendrites — Public Fediverse posts

https://www.europesays.com/fr/751666/ Les scientifiques découvrent un « nouveau langage » du cerveau humain #cerveau #CortexCérébral #Dendrites #Epilepsie #FR #France #LesTendances #neurone #organe #Science #ScienceAndTechnology #Sciences #SciencesEtTechnologies #SystèmeNerveux #Technologies #Technology #TissuCérébral #TroublesNeurologiques

Axons and dendrites are fundamentally different. An example from #Drosophila:

"axons and dendrites can accumulate different microtubule-binding proteins; protein synthesis machinery is concentrated in the cell body; pre- and post-synaptic sites localize to distinct regions of the neuron; and specializations similar to the initial segment are present. In addition, we track EB1-GFP dynamics and determine microtubules in axons and dendrites have opposite polarity."

"Polarity and intracellular compartmentalization of Drosophila neurons", Rolls et al. 2007
https://link.springer.com/article/10.1186/1749-8104-2-7

To collapse axons and dendrites into point neurons in a simulation of neural circuits is, at this point, malpractice.

#neuroscience #cytoskeleton #axons #dendrites

`In this work, we investigated the #dendrites of layer 2 and 3 (L2/3) pyramidal #neurons of the human cerebral cortex ex vivo. In these neurons, we discovered a class of #calcium-mediated dendritic action potentials (dCaAPs) whose waveform and effects on #neuronal output have not been previously described. In contrast to typical all-or-none action potentials, dCaAPs were graded; their amplitudes were maximal for threshold-level stimuli but dampened for stronger stimuli`

https://www.science.org/doi/10.1126/science.aax6239

#Nerve #cells (#neurons ) are amongst the most complex cell types in our body. They achieve this complexity during development by extending ramified branches called #dendrites and #axons and establishing thousands of synapses to form intricate networks.
#Neuroscience #sflorg
https://www.sflorg.com/2024/04/ns04082401.html

Wiring map reveals how larval fruit fly brain converts sensory signals to movement

https://www.spectrumnews.org/news/wiring-map-reveals-how-larval-fruit-fly-brain-converts-sensory-signals-to-movement/

#neuralcircuits #animalmodels #brainmapping #connectivity #Drosophila #dendrites #circuits #learning #synapses #autism #axons #News

#Nerve #cells communicate with one another via long processes known as #axons and #dendrites, or, more generally, neurites. During development, these processes first grow and form connections with other cells
#Biology #Neuroscience #sflorg
https://www.sflorg.com/2023/01/bio01262303.html

This article [Introducing the Dendrify framework for incorporating dendrites to spiking neural networks | Nature Communications](https://www.nature.com/articles/s41467-022-35747-8)

helps address the criticisms of #neuralnetworks that I presented to Paul Smolensky over 10 years ago regarding lack of realism of connectionist neurons given what we then/now know about real biological computing at the #postSynaptic juncture:

https://www.youtube.com/watch?v=GGuBz63snLU&t=2733s

#connectionism #dendrites

@ilennaj And you are the author of this most spectacular arXiv paper: "Can single neurons solve MNIST? the computational power of biological dendritic trees" Jones & Kording 2020 https://arxiv.org/abs/2009.01269 Hats off to you & @kordinglab ! And welcome.

#neuroscience #dendrites #MNIST

PS: subsequently published as "Might a Single Neuron Solve Interesting Machine Learning Problems Through Successive Computations on Its Dendritic Tree?" Jones & Kording 2021 https://direct.mit.edu/neco/article/33/6/1554/100576/Might-a-Single-Neuron-Solve-Interesting-Machine

Maternal sleep apnea may contribute to autism-like traits in rats

https://www.spectrumnews.org/news/maternal-sleep-apnea-may-contribute-to-autism-like-traits-in-rats/

#dendrites #rapamycin #synapses #autism #sleep #News #rats #sex