Saturday, January 5, 2008

New senses


OMG I feel like this cold is going to kill me. Ugh.

Anyhow, bitching aside, Reddit caught what I am assuming is actually an older article on Wired on the idea of adding new senses by harnessing plasticity. Let's set aside the idea that all our more primitive portions of neural gooeyness are not designed to just lump new senses on top of old ones, what would be considered a "new sense"?

Some eels can detect distortions in a self generated electromagnetic field around their bodies, but that's all I can really think of off hand. Generally, there is a very basic fallacy that all these articles miss: transducing one phenomena into another sense violates the idea of bringing into existence a new sense. In other words, like in this article, adding vibrotactile pads to indicate the distance above the ground (by vibration frequency) is not really "sensing" gravity. You're sensing vibrational frequency. If you lose the ability to detect haptic feedback, you lose your "gravity" sense. The same is not true of our other senses. But, to play Devil's advocate, at a base level everything is transformed into nerve impulses. And yet, to play the Devil's Devil's advocate (I swear that's the title of a heavy metal song), each of our senses as its own wiring that is oodles more complicated than "sensation A is detected by cell type A, and then that just goes to 'the brain'".

Anyhow, a similar self-mutilation type version was discussed earlier on DNI, and the article links to the writer's blog, which is decent, though not updated very often. Worthy of an RSS sub at least.

Paper title of the day

Collision judgment of objects approaching the head

Friday, January 4, 2008

The 10k club


Just a quick note. This month we hit the 10,000 visitor mark, and there have been around 17,000 page views (in 6.5 months)! Pretty cool for a shoot-from-the-hip decision under massive sleep deprivation!

Rockin'.

Thursday, January 3, 2008

Webcam multitouch

I can't believe I didn't post this already. Based on Remy's comment on the Wiimote interface, here's a similar thing done with a standard webcam by a Microsoft researcher.



And while I'm at it, might as well post this Minority Report type interface using the Wiimote as well. I have to say that the Wii has inspired some crazy-awesome interface hacks that get me excited about what will soon be available. Hey, the hardware and drivers are there, the manufacturing is in place (and cheap!), so all we need is someone to tie it all together. And give me 20%.

Mechano-Synaesthetin'


Before the post, I should say I feel like death warmed over from some bug I caught. But, I was stirred enough by Obama's acceptance speech in Iowa to pull out of my haze and post.

io9 is just posting a slew of stuff, mostly scifi related, but also gems like this. The vibrotactile stimulator pictured above is attached to a camera, where grayscale information varies the speed of vibration. Again, nothing really "new" other than that this is an active probing usage.
I can't find the links now, but an example of previous efforts include BrainPort which uses a camera attached to a grid of piston-like pieces that apply pressure based on grayscale info. Still very cool and more practical for those who want, but don't need, the experience.

Wednesday, January 2, 2008

I'm thinking of something dwelling-like...


Though not Earth-shattering, I thought I would post a quick mention of an article on io9 to highlight the site. Fun sci-fi meets advanced real-world technology and design. I think they claim it is the site for people that live a 'beta' existence - final release of anything is already outdated. Worth a bookmark or RSS sub IMO.

Anyhow, the article relates to a PLoS article on tool versus dwelling perception, and how using MRI, researchers at CMU (and I assume the CNBC) trained a computer algoritm (assuming again, that it's a Bayesian Classifier or 3-layer ANN, haven't read the article yet) to tell if a person was looking at a picture of a house-type-thing or tool. Not surprising, really, since tools tend to activate areas associated with their use, like PM, MI, IPS, etc. I bet they would get mixed results if they showed houses images with various levels of usage items prominence - like door handles, lawn hoses, shovels sitting in the front yard, etc.

Tuesday, January 1, 2008

I can haz Happy New Year?

Happy 2008. May your CV grow long and publication revisions few int he coming year.

And now, the most epic cat compilation evar!