Paul Fiedler

@pfiedler.bsky.social

🧑‍🎓 Master Student Medical Neurosciences @Charité 🧠 Youth Mental Health Advisor for @WHO/Europe interested in memory, sleep, cognition, neuron-glia, mental health, and scicomm 🌈

📣New paper! How does the sleeping brain help us to integrate new experiences while managing memories from the past? For his PhD work, @sabbaspoor.bsky.social recorded hippocampal ensembles in freely moving monkeys and found something unexpected. 🧵1/n www.nature.com/articles/s41... 🧪🧠📈👩‍🔬#OpenAccess

Experience reorganizes content-specific memory traces in macaques - Nature Neuroscience

In macaques, old memories, relative to new ones, are supported by more stable and interconnected cell assemblies. New-biased and old-biased assemblies reactivate during overnight sleep and can sometim...

nature.com

APA no longer shows me the actual paper, authors, abstract etc when I click on a paper in a search engine. Everything gated now, including basic paper info. Screenshots: (1) search hit (2) resulting APA site. Tried for a few papers now. What on Earth.

BildBild

I’ve officially resigned as Associate Editor for Frontiers in Systems Neuroscience. It used to be a reputable journal, but became a case study in how forced automation destroys academic integrity. 👇

1. How common is LLM use in scientific publishing, and how does it vary across field, publisher, journal prestige, author demographics etc.? @kylesiler.bsky.social has new paper in PNAS that addresses this question on a massive scale: 7.3 million papers from Elsevier, PLOS, MDPI, and Frontiers.

The diffusion of large language models in published academic articles | PNAS

Large language models (LLMs) are rapidly changing academic research, raising questions of who is adopting these tools and under what conditions. Th...

pnas.org

Iota oscillations made it past peer review! Welcome to the zoo of sleep oscillations 😊 journals.physiology.org/doi/full/10....

Iota oscillations (25–35 Hz) during wake and REM sleep in children and young adults | Journal of Neurophysiology | American Physiological Society

High-frequency brain oscillations in humans are currently categorized into beta (13–30 Hz) and gamma (>30 Hz). Here, I introduce a new class of oscillations between 25 and 35 Hz, which I propose to call “iota.” Iota oscillations have low amplitudes but can still be measured with surface electroencephalography (EEG). Within an individual, iota activity has a narrow spectral bandwidth typically less than 3 Hz, thus distinguishing it from broadband beta and gamma. Iota oscillations occur in sustained bursts during both wakefulness and rapid eye movement (REM) sleep. They are only found in a subset of individuals, more in children than in adults. Overall, iota oscillations are challenging to detect but could serve as a marker of both brain development and states of vigilance. NEW & NOTEWORTHY Electrical brain waves are some of the only neuronal signals that can be measured noninvasively in humans. Until now, only six classes of waves have been identified. Here I introduce a new class, iota, specific to wakefulness and rapid eye movement (REM) sleep. This makes iota just the second class of brain wave known to characterize REM sleep (after theta), and opens up new opportunities to investigate this elusive state.

journals.physiology.org

"Structure and metabolism should no longer sit in separate boxes. The brain’s wiring could also be part of its fuel strategy. Myelin may be more than insulation; it may also form part of the brain’s adaptive metabolic infrastructure." 🧠👇 #neuroskyence www.thetransmitter.org/metabolism/b...

Beyond glucose: The brain may feed itself

Myelin may serve as an energy reserve for the brain, and neuroscientists are rethinking how the brain stores, shares and protects energy.

thetransmitter.org

As a cognitive scientist, I'm embarrassed at how long it took me to realise that emotion matters a lot, not just for understanding humans, but for understanding any thinking agent. Why? Because emotion is an indicator of what that agent values, and values are essential to rationality. Examples:

Nicole Rust@nicolecrust.bsky.social · 7mo ago

There's much talk these days about what's required for "real" intelligence, such as world models and the like. One thing we know about the human evolution of it: it required/requires emotion. That may have been better appreciated in 1938 than today. archive.org/details/in.e...

Subtract the emotional element from religion, literature, and art and there would be left the merest dross, an utterly meaningless mass of symbols and responses. Emotionless, man could not produce poetry, music, the graphic arts, or any of the splendid products of a refined culture. The generous sweeps of the imagination that have brought forth romantic movements in the world^s history, the noble aspirations of the intellect that have led whole peoples to seek a higher life, the tremendous activities of organized groups which have spread the best tokens of their civilizations to other lands, the splendid achievements of individual pioneers, adventurers, craftsmen, artisans, composers, inventors, scientists, and spiritual leaders, would never have come to pass in an emotionless world.