Are we sure that this works at all?

[ozancaglayan]

Hi,

I'm playing around with emokit based Python library that I'm developing. It is basically a shiny object-oriented thing based upon what openyou people achieved by reverse engineering the device.

I'm continuously recording EEG data for an (SSVEP BCI) experiment but can't get valuable stuff and I started to be paranoid. Let me ask, did anybody use the hacked protocol for a real EEG experiment? If yes, were you able to get meaningful data?

[kanzure]

All of my development work after the very beginning was without an actual device in hand. I am aware of at least two other programmers that actually have an emotiv.

[olorin]

I have a consumer EPOC and have confirmed that the waveforms I'm getting are what I'd expect from neurophysiology - as a quick sanity check, can you recognise the waveform changes when you blink?

[ozancaglayan]

Hi,

I just connected a signal generator to the headset and will record from each channel to see what happens. I'll also record with the alternative behind-the-ears reference locations as I read in forums that since the default ones are close to the visual cortex, they can cancel SSVEP modulation.

[ozancaglayan]

Okay just recorded 10 seconds of data through the O2 electrode. I shorted the default reference locations and connected them to generator's GND. I injected ~15Hz of sinusoidal waves to O2. Here's the frequency spectrum estimation of the recorded signal, so it is clearly working as expected. Sorry for the paranoia :)

[olorin]

Cool, thanks for testing it.