<< Scientists are now rethinking how they study and conceive of perception. >>
<< At every moment, neurons whisper, shout, sputter and sing, filling the brain with a dizzying cacophony of voices. Yet many of those voices don’t seem to be saying anything meaningful at all. They register as habitual echoes of noise, not signal; as static, not discourse. >>️
<< But over the past decade, that view has changed. (..) There’s more to all the noise, scientists realized, than they had assumed. >>️
<< Now, by analyzing both the neural activity and the behavior of mice in unprecedented detail, researchers have revealed a surprising explanation for much of that variability: Throughout the brain, even in low-level sensory areas like the visual cortex, neurons encode information about far more than their immediately relevant task. They also babble about whatever other behaviors the animal happens to be engaging in, even trivial ones — the twitch of a whisker, the flick of a hind leg. Those simple gestures aren’t just present in the neural activity. They dominate it. >>️
<< Our brains aren’t just thinking in our heads. Our brains are interacting with our bodies and the way that we move through the world. >> Cris Niell.
<< Wait — maybe the brain isn’t noisy. Maybe it’s actually much more precise than we thought, >> David McCormick️.️
Jordana Cepelewicz. ‘Noise’ in the Brain Encodes Surprisingly Important Signals. Quantamag. Nov 7, 2019.
Salkoff DB, Zagha E, McCarthy E, McCormick DA. Movement and Performance Explain Widespread Cortical Activity in a Visual Detection Task. Cereb Cortex. 2020 Jan 10;30(1):421-437. doi: 10.1093/ cercor/bhz206.
Also
keyword 'perception' in FonT
keyword 'percezione' | 'percezioni' in Notes (quasi-stochastic poetry)
keyword 'error' | 'fuzzy' | 'noise' in FonT
keywords 'errore' | 'errori' in Notes (quasi-stochastic poetry)
keyword 'jazz' in FonT
keyword 'jazz' in Notes (quasi-stochastic poetry):
Keywords: brain, perception, visual cortex, noise
