• Posts
  • RSS
  • ◂◂RSS
  • Contact

  • Brain Rewiring and Tongue Vision

    October 30th, 2011
    cogsci, tech  [html]
    Different parts of our brains process different signals. There's a section (cortex) that processes audio, and a different one that processes video. If you disconnect these parts of the brain from their inputs and instead cross connect the eyes to the auiditory cortex (in ferrets) it learns to interpret the visual signals. You can even do this in people: put a grid of electrodes on the tongue, connect them to the output of a video camera, and within 15 minutes people are seeing with their tongues (also, also).

    I want to build this. The current potential needed is 5-15 volts, which is practical and reasonably safe. I need a flexible grid of electrodes, connected to something like an arduino, connected to some sort of camera. I think I could use a smartphone camera and use the smartphone to control the arduino. The part I don't currently know how to get or make is the electrode grid. It needs to be mouth-safe, and it would be nice if it were at least 10 electrodes on a side. The ones I see are way too small. I'd also need to figure out how to get that up to ~5V and controlled by the arduino, but I think there's a lot out there on thatt sort of thing.

    It might be interesting to see whether there are other things that might make a better tongue-sense than sight. GPS location? Compass direction? Bus locations? Magnetic field strength? Weather predictions? How well would we internalize a sense we had not evolved to use?

    Comment via: google plus, facebook

    Recent posts on blogs I like:

    EDT with updating double counts

    I recently got confused thinking about the following case: Calculator bet: I am offered the opportunity to bet on a mathematical statement X to which I initially assign 50% probability (perhaps X = 139926 is a quadratic residue modulo 314159). I have acce…

    via The sideways view October 12, 2021

    Meditations on newborns

    [Content: death.]I wrote most of this a couple of months ago when Nora was a newborn, but the first few months are not that conducive to finishing blog posts. New babies put you into a liminal period, both in your own experience and in how others treat yo…

    via The whole sky October 3, 2021

    The value of in-house expertise

    An alternate title for this post might be, "Twitter has a kernel team!?". At this point, I've heard that surprised exclamation enough that I've lost count of the number times that's been said to me (I'd guess that it's more tha…

    via Posts on Dan Luu September 29, 2021

    more     (via openring)


  • Posts
  • RSS
  • ◂◂RSS
  • Contact