[EEG] near-infrared optical spectroscopy for brain scanning?

[Christoph Maier]

On Wed, 2009-08-05 at 22:45 -0700, Sai Emrys wrote:
> On Tue, Aug 4, 2009 at 2:15 AM, Christoph
> Maier<cm.hardware.software.elsewhere at gmail.com> wrote:
> > Do you have access to a pulse oximeter, to play with?
> 
> I have a basic fingertip pulse oximeter.
> 
> - Sai

Hmmm ... I'd really like to look at the optics part, and the LEDs and
sensors, probe it with an oscilloscope, and get the equivalent parts. 
Do you have pictures ... or even schematics and acquired waveforms?

Christoph <- in San Diego at the moment.