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@seeingwithsound@mas.to
2026-06-01 07:27:56

Low-level "visual" perception with visual-to-auditory sensory substitution is at least on par with brain implants for restoring vision. It's the higher-level visual perception where there remain many open questions. Much more scientific effort should go into that. #BCI #blindness

@seeingwithsound@mas.to
2026-04-27 13:47:20

Sensory challenges should be treated more like sports challenges: people don't ask if it is "useful" to play football or tennis or chess. Why not the same thing with pushing the limits of perception with novel visual prostheses? #BCI #NeuroTech

Graphical text, content same as post.
@seeingwithsound@mas.to
2026-05-11 09:28:39

I'm looking for quantifiable measures of effective information bandwidth from auditory to visual areas in the human brain. Has anyone tried that using what is now known about the human connectome? Next question will be how sensory experience may affect this bandwidth through functional re-routing (non-physical "rewiring").
#blindness

Graphical abstract of BCI options for a visual prosthesis.
@seeingwithsound@mas.to
2026-05-04 08:35:24

Rapid sequential activation from A1 to V1 in congenitally blind and sighted subjects sciencedirect.com/science/arti on primary visual cortex activation by auditory stimuli;

Highlights: • MEG reveals thalamus→A1→V1 sequential activation within 50 ms of auditory onset • V1 activates 10–15 ms after A1, consistent with a monosynaptic A1-to-V1 pathway • Auditory-evoked V1 responses are significantly larger in congenitally blind subjects • Alpha-band connectivity from A1 to V1 and thalamus to V1 is enhanced in blindness • Auditory cross-modal plasticity relies on a different route than tactile plasticity