yeah that is one of my biggest problems with neuroscience: addressability in a system which seems substantially nonlocal
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Some competitors/supplements to spatial just in case you want to read more are (in any combination): - Topological (spatial or functional, I think spatial topological models are silly tho) - Frequency/power spectrum-ish stuff - Functional connectivity kinds of things - Whatever Friston is on about
jul 22, 2025, 8:36 pm • 2 0 • view
yeah, i was actually just thinking through how i'd build addressability via cumulative noise, and, like, "well, if the noise spectrum were 1/f, then so long as the dominant frequencies in the characteristic noise were fixed points (and we ran a high-pass filter) then plasticity wouldn't be that bad.
jul 22, 2025, 8:39 pm • 2 0 • view
I'm pretty sure fixed-ish oscillation frequencies (alpha, beta, whatnot) do (in theory) serve the purpose of addressability in the brain in the frequency band/functional connectivity literature, but I don't have a great source
jul 22, 2025, 8:42 pm • 1 0 • view
But that's on the order of like, "OK, we're doing forward messages now" "OK backward messages time" back and forth a few times a second, not like "this came from x=20, y=-3 in the visual field"
jul 22, 2025, 8:45 pm • 1 0 • view
For more understood neural (not well understood) solutions to addressability, hippocampal conceptual-spatial maps are neat too (www.jneurosci.org/content/40/3...)
jul 22, 2025, 8:37 pm • 2 0 • view