[Noisebridge-discuss] Wearable skin galvanic response indicator

Crutcher Dunnavant crutcher at gmail.com
Wed Jul 22 19:23:43 UTC 2009


I'm interested in a mood device, that would essentially advertise the
wearer's level of arousal. Maybe using brighter and brighter lights,
or flashing sequences, and escalating all the way to a warning siren?

On Wed, Jul 22, 2009 at 10:21 AM, Jean Rintoul<jean.rintoul at gmail.com> wrote:
> This site has some cool GSR related products:
> http://www.mindgrowth.com/store/
>
> You could just make your own metal plates and hook them into the unit.
> The GSR units from Mindgrowth output an audio signal which you could patch
> through to something like this:
> http://www.zazzle.com/gn_vu_meter_tshirt-235497926076941642
>
> There are also instructions to make one from scratch:
> http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2006/hmm32_pjw32/index.html
>
> Cheers,
>
> Jean
>
> On Tue, Jul 21, 2009 at 9:53 PM, Martin Bogomolni <martinbogo at gmail.com>
> wrote:
>>
>> It can absolutely be made smaller/slimmer using SMD parts and changing
>> out the batteries for coin cells.  The question really is "is it worth
>> it?"    Personally, I like the "ghetto" quality of the device... it's
>> like a nixie watch in that respect.
>>
>> Although there is a micro nixie tube watch ( using russian nixie tubes
>> that are just 6mm tall! ) that I would love to own.
>>
>> -Martin
>>
>> On Tue, Jul 21, 2009 at 7:59 PM, Sai Emrys<noisebridge at saizai.com> wrote:
>> > I'm curious whether this: <http://www.produceconsumerobot.com/truth/>
>> > could be made slimmer.
>> >
>> > (One note 'cause it always annoys me, especially from someone who
>> > should know better: GSR is not a 'lie detection' test, it's an
>> > arousal/stress
>> > detection test. People get aroused for all sorts of reasons that don't
>> > tell you in any way close to reliable whether they're lying. Cf. Paul
>> > Ekman, "Telling Lies".)
>> >
>> > I'd want it to be much simpler and low-key than that example -
>> > preferably similar in form factor to the compass anklet I saw a couple
>> > of you working on, and with sensors on the inside of the wristband
>> > rather than requiring an additional finger sensor.
>> >
>> > I don't know if that's possible though, as my knowledge of EE &
>> > circuit design / component availability is minimal.
>> >
>> > Some possibilities drawn from ignorance:
>> > * swap AAA for wafer-type battery(s)
>> > * smaller chip, or maybe even chipless (if e.g. one could make the
>> > skin itself be a resistor like in normal dimmable lights?)
>> > * flexible breadboard or other replacement for the big hard thing
>> > * smaller LEDs - or something else that lights up from one end to the
>> > other depending on power applied? (e.g. do any EL wires or similar
>> > things do this?)
>> >
>> > If it helps, I have a decent cheap fingertip pulse oximeter that could
>> > be cannibalized. If this wristband could also show pulse & O2 while
>> > still being slim, so much the awesomer.
>> >
>> > So, to those of you who do: is it? How would I go about making this?
>> >
>> > - Sai
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>> >
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-- 
Crutcher Dunnavant <crutcher at gmail.com>



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