OpenBCI_GUI SSVEP Beta widget

j_loej_loe
edited November 2019 in OpenBCI_GUI

Hi community!
I'm about to starting building a project on a Ganglion and have just seen on here that the OpenBCI GUI has a new beta SSVEP widget - awesome!
Question - is this just the stimuli or is there any associated processing in the widget?
Thanks!

Comments

  • retiututretiutut Louisiana, USA

    Both.

  • retiututretiutut Louisiana, USA

    It really needs to have a pop-out window to display the stimulus on a second monitor for users, this is coming hopefully in GUI v5.

  • j_loej_loe

    @retiutut said:
    Both.

    Great. And what signal processing is applied to identify SSVEP?

  • retiututretiutut Louisiana, USA
    edited November 2019

    Kind of started with a loaded question. You’re welcome to go look at the code. SSVEP widget uses existing FFT data and you can select filtered data from a dropdown in the FFT widget.

  • j_loej_loe

    Ah true, guess I could have been clearer initially.
    OK, thanks. The board's arrived now so I'll check out the code.
    Totally agree about the second monitor. I've struggled in the past with generating accurate SSVEP stimuli!
    Thanks again

  • retiututretiutut Louisiana, USA

    We definitely need input from the community on the SSVEP widget! Please share your results/findings here in the forums or on GitHub as an issue and tag me.

    I think the pop up window with a fullscreen option might improve results. The basic layout and interface are done, so that’s why it is in beta.

    I’m also going to ask the help of a neuroscientist to review our SSVEP algorithm.
    B)

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