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It's hard to build a model of a system without observing it - perhaps a reason we don't know how to decode neural signals yet is that we didn't have a way to re
by mysterEFrank 6y ago
It's hard to build a model of a system without observing it - perhaps a reason we don't know how to decode neural signals yet is that we didn't have a way to read them. I'm sure that this vastly improved sensor will lead to better models of the brain and neural activity.
- subroutine 6y agoWe have plenty of ways to observe neural activity, and have had them for years. This chip fab represents an incremental step. In fact if I had to choose for my lab this new chip or some other tech currently available, there are about 5-6 other things I'd prioritize over this Neuralink device.
- Veedrac 6y agoEg. what alternative?
- subroutine 6y ago1. Fiber photometry rig 2. A 1-/2-/multi-photon microscope with head fixation stage for GRIN lens imaging 3. New electrophysiology rig for single cell, paired cell, multi cell, voltage clamp, patch clamp, etc recording 4. An automated micromanipulator for molecular uncaging and optogenetics experiments 5. a rig for superres single molecule tracking experiments, PALM/STED/STORM/uPaint 6. A set of headmount Miniscopes (elon could actually help to vastly improve these)
- Veedrac 6y agoThanks.
- mysterEFrank 6y agoWhich of these could you use in vivo?
- bioipbiop 6y agoWe’ve actually had ways of observing neural signals for quite some time. In order to identify the regions of the brain requiring surgery for epilepsy, patients get electrodes implanted and spend several weeks in hospital. Various researchers have recruited volunteers from this cohort for neural signal studies. A team recently managed to decode speech from neural signals from such a study! https://www.ucsf.edu/news/2019/04/414296/synthetic-speech-generated-brain-recordings https://www.ucsf.edu/news/2019/04/414296/synthetic-speech-ge...
- mysterEFrank 6y agoCool! This seems very similar to what Neuralink hopes to build out, aside from some technical details
- JyB 6y agoThat looks like a key point behind the existence of the Neuralink company.