top Hydrogel Process Creates Transparent Brain For Research
Ah, no, fMRI doesn't give "movies of activity". As Anthony mentioned it tracks blood flow changes and give you a map of where it changed most when the subject performed a task. Nothing moves in the image.
Nor does this technique leave cells intact, and nor can you use electric currents to "study the connectivity". You may want to check up on some basics.
about a year and a half ago
top Artificial Brain '10 Years Away'
Absolutely right. That kind of finite-element simulation is futile because it simply "enacts" stuff that we know about. Sure, it might behave in ways we didn't foresee when we scale it up a billionfold, but it won't show us anything genuinely new. I suspect there is stuff going on in neurons that we don't even know how to look for. Well actually I *know* there is, because neurons are conscious.
Aside from these philosophical objections, Markram's model doesn't even include glia, which are fully half of the interactional dynamics going on in the brain. We scarcely even know what glia are doing, and yet they are part of every synapse and their slow waves of activity strongly shape neuronal processing.
top Alaskan Blob Is an Algae Bloom
Yes, I did! I'm not working on tachyons, just studying nuclear resonance in indium antimonide.
Hang on, something's gone funny with the rig, gotta go.
top Scientists Wonder What Fingerprints Are For
I can't believe it when I see articles debating the purpose of fingerprints. They are mechanical amplifiers for vibration in the skin, thus enhancing touch perception; it's been known for 50-70 years that the ridges form a specific arrangement with the sensory fibre endings. In fact the ridges are CREATED by interactions between the developing skin and the nerve fibres which innervate it to provide touch sensation - this is why some nervous system defects result in abnormal fingerprints (e.g. Down syndrome). The only "Scientists [who] Wonder What Fingerprints Are For" are those unaware of the basic literature in the field.
Here's a starting point:
Hope that helps.
top DoE-Sponsored Project Readies Human Trial For Artificial Retinas
Thanks for the info - I hope it doesn't turn out to be RP in your case, but if it does, I hope the prostheses are ready soon.