Hunt for GSR Measurement

20th April, 2009

My hunt for circuit schematics has obviously been ongoing for a while but I hadn’t really discovered much worthwhile until lately. Eventually I came across an excellently documented electronics project for producing a polygraph, one measurement of which it is taking is Galvanic Skin Response:

http://courses.cit.cornell.edu/ee476/FinalProjects/s2007/jsc59_ecl37/jsc59_ecl37/report2.html

The Project Model

22nd November, 2008

Here is a diagram to demonstrate my final year Project concept as an interactive process between the user and a virtual space:

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Experimental Analogue Inputs

13th November, 2008

It was suggested that before I go about planning and building a PCB to take biofeedback readings from a person to push as a stream of analogue data into a computer, I should see how easily I can get such information into C++, DirectX and of course eventually media player.

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Project – Galvanic Skin Response

2nd November, 2008

I downloaded the example Games Module critques and immediately realised that one of them was about a game that has been produced using an interface quite similar to what I want to produce as part of my final Project. The game in question is called Journey to the Wild Divine, and it turns out they use what they call a biofeedback device – which of course opens a new keyword for me to search for.

I’ve already been looking into Galvanic Skin Response and how to produce a PCB that will allow me to take continuous readings from a number of points and feed them into a computer, most likely via USB.

I have already been considering building some form of GSR mouse input device, because it has the advantage of being familiar and one of the most commonly used input devices that people use. On the other hand, the only time people are likely to sit with their hand on a mouse all the time is during a pretty mouse intensive activity, like a 3D first person game and not listening to music.

Links

Journey to the Wild Divine uses a ‘biofeedback device’ to measure how calm the user is:

http://openeeg.sourceforge.net/doc/links-biopsy.html

Project Meeting with Dan

28th October, 2008

Following an initial group meeting with Dan Livingstone up in the Babbage Cafe, I’m a little more reassured that my idea is reasonable. He also outlined a plan of action, involving writing about the following areas:

• Start with a field definition.
• Identify the key players and best examples, while giving evidence as to why they are.
• The innovation or angle behind the project.
• Document the technologies that are to be used within the project.
• The perspective from which the project should be evaluated.

I also need to take a look at GSR (Galvanic Skin Response) and research methods of reading this sort of data into a computer.