In mouse #BarrelCortex, slow recurrent background fluctuations appear to compensate for the tiny dendrites of L4 spiny stellate #neurons, allowing even single #thalamocortical #spikes to be reliably represented at the population level with millisecond precision.
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📝 https://doi.org/10.1371/journal.pbio.3003789
#Neuroscience #CompNeuro #NeuralCoding #PopulationCoding #Cortex
🐭🎶 New paper by Isko et al, who study #Alston’s singing mouse, a rodent with loud, stereotyped songs.
Using bulk tracing, serial #2P #tomography, & #MAPseq of >76,000 barcoded neurons, they find expanded projections from #orofacial #MotorCortex to #auditory #cortex & #PAG. This suggests that singing / #Vocalization may emerge not from entirely new circuits, but from selective strengthening of existing motor, auditory & vocal-control pathways.
🧠 New preprint by Lu et al: Recordings from the human #hippocampus and anterior cingulate #cortex during three distinct tasks reveal that #NeuralPopulation activity is not fully task-specific. About half of the low-dimensional #NeuralSubspace structure was shared across tasks, suggesting a stable population geometry that may support flexible #cognition across different #behaviors.
Cortex Prime’s new stewardship opens up the system
https://fed.brid.gy/r/https://www.rascal.news/cortex-primes-new-stewardship-opens-up-the-system/
Jazz de Ville – Groove
Fabrizio Musacchio
PLOS Biology
Rascal News [Unofficial]
Elliot Shank