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Global Brain
The prospects of an emerging global intelligence on the internet and elsewhere
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Brown University creates first wireless, implanted brain-computer interface

Brown University creates first wireless, implanted brain-computer interface | Global Brain | Scoop.it

Brown’s wireless BCI, fashioned out of hermetically sealed titanium, looks a lot like a pacemaker. Inside there’s a li-ion battery, an inductive (wireless) charging loop, a chip that digitizes the signals from your brain, and an antenna for transmitting those neural spikes to a nearby computer. The BCI is connected to a small chip with 100 electrodes protruding from it, which, in this study, was embedded in the somatosensory cortex or motor cortex. These 100 electrodes produce a lot of data, which the BCI transmits at 24Mbps over the 3.2 and 3.8GHz bands to a receiver that is one meter away. The BCI’s battery takes two hours to charge via wireless inductive charging, and then has enough juice to last for six hours of use.


Via Szabolcs Kósa, Tania Kowritski, The Asymptotic Leap
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Nacho Vega's curator insight, March 5, 2013 5:10 AM

Where do we go?!!!

Gust MEES's curator insight, March 5, 2013 4:17 PM

 

These 100 electrodes produce a lot of data, which the BCI transmits at 24Mbps over the 3.2 and 3.8GHz bands to a receiver that is one meter away.

 

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The Electronic Brain? Your Mind Vs. a Computer

The Electronic Brain? Your Mind Vs. a Computer | Global Brain | Scoop.it

According to Chris Chatham at Developing Intelligence, the brain-computer metaphor has lead to a lot of over-simplification in our thinking about our thinking. "An unfortunate legacy is the tendency to seek out modularity in the brain... the idea that computers require memory has lead some to seek for the 'memory area,' when in fact these distinctions are far more messy." We're now learning that regions cannot be associated with a singular function (i.e. the frontal cortex as "the place where personality occurs").

The brain is not a storage dump, and consciousness is not a place. Synapses are also far more complex than electrical circuits. Neither processing speed nor short term memory capacity are fixed, whereas RAM is.


Via Sakis Koukouvis, Wildcat2030
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Neuroscience and philosophy must work together

Neuroscience and philosophy must work together | Global Brain | Scoop.it

To a large extent consciousness has been dethroned from the central role it used to occupy in the study of our mental lives. Freud persuaded us that there is more going on mentally than we are consciously aware of, and that sometimes others can know more about what we are thinking and feeling than we do. Now we are also learning more and more from neuroscience and neurobiology about how much of what we do is the result of unconscious processes and mechanisms. And we are discovering that there are different levels of consciousness, different kinds of awareness, and that much of our thinking and decision-making can go on without it. So a more pressing question might be, what is consciousness for? Is it just a mere mental accompaniment to what is going to happen anyway? In that case it may be our sense of self and self-control that is most in need of revision.

 

by Barry Smith


Via ddrrnt
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