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RE: Fish-Machine Interface

Rosalind Pickard's "Affective Computing" book seems to be a must read for
ideas and applications regarding the use of biofeedback and understanding
physiological responses to emotions and state of mind. MIT's web site does
have some information in this area, but the HW they use is the ProComp+
which is kind of expensive. I would like something like the ProComp+, but
not as expensive. I know some electronics, but when it comes to analog stuff
I'm fairly clueless, so the best I can do here is build from some given
schematic diagram. Something that might be of interest is a circuit from the
Circuit Cellar magazine which performs an electrooculogram. This circuit
enables you to move a mouse by moving your eyes.

BTW, I also have a cat, and I would have to agree with you, no embedding of
HW in my critter.

Edmund  

-----Original Message-----
From: Doug Sutherland [mailto:]
Sent: Friday, December 01, 2000 3:30 PM
To: Edmund Troche
Cc: 
Subject: RE: Fish-Machine Interface

Edmund Troche wrote:

> Oh come on Doug, cats have 7 lives.

Yes but they need those for curiosity reasons. One of my cats 
almost used up one of hers yesterday. I dropped something under
the couch, and lifted it up, grabbed the item and put the couch
down. Then I heard a muffled meow and couldn't figure out where
it was coming from. A second muffled meow revealed that it was 
coming from under the couch! Fortunately the cat was not under
any of the wooden bars across the bottom. Instead she was 
between the frame where they have cloth, she was okay but was 
pinned under there. Thankfully she was fine. It's a good thing
I heard that meow though. This same cat has been known to get 
her head stuck in things: like styrofoam cup-a-soup containers. 
Watching a cat freak out with a styrofoam cup stuck on their 
head is quite amusing ...

> They won't mind contributing to the advancement of technology ~: )

I think they would mind. Perhaps I can make some kitty wearables 
or put cat tracking emitters on their collar, but I'm not keen on
embedding hardware in the little critters.

> Speaking of EKG, BVP and GSR, does anyone know of some DIY HW that I can
> build.

I have build instructions for the brainmaster EEG if you want them.
But you need to find a 68HC11EVBU evaluation board. All you need is 
that and two instrumentation amplifiers from analog devices plus 
a bunch of resistors and capacitors. There is some info about the 
EEG unit here http://www.brainmaster.com/

> Also, does anyone know how to pick up the signals from those chest
> straps that come with the Polar (or other) wristwatches that measure the
> pulse? Thanks in advance for any help.

No but I have been wondering the same. I did post a link to a GSR 
biofeeback device connected to a lego mindstorms unit a while back
and there is some interesting info about biofeedback devices on the 
MIT web site.

  -- Doug

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