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Some fun interface tech:<br>
<br>
<a href="http://arxiv.org/abs/1307.2196">http://arxiv.org/abs/1307.2196</a><br>
<br>
Neural Dust: An Ultrasonic, Low Power Solution for Chronic
Brain-Machine Interfaces<br>
<br>
Dongjin Seo, Jose M. Carmena, Jan M. Rabaey, Elad Alon, Michel M.
Maharbiz<br>
<blockquote>A major hurdle in brain-machine interfaces (BMI) is the
lack of an implantable neural interface system that remains viable
for a lifetime. This paper explores the fundamental system design
trade-offs and ultimate size, power, and bandwidth scaling limits
of neural recording systems built from low-power CMOS circuitry
coupled with ultrasonic power delivery and backscatter
communication. In particular, we propose an ultra-miniature as
well as extremely compliant system that enables massive scaling in
the number of neural recordings from the brain while providing a
path towards truly chronic BMI. These goals are achieved via two
fundamental technology innovations: 1) thousands of 10 - 100 \mu m
scale, free-floating, independent sensor nodes, or neural dust,
that detect and report local extracellular electrophysiological
data, and 2) a sub-cranial interrogator that establishes power and
communication links with the neural dust.<br>
<br>
</blockquote>
<pre class="moz-signature" cols="72">--
Dr Anders Sandberg
Future of Humanity Institute
Oxford Martin School
Oxford University
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