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NeuroTechX / EEG-ExPy

EEG Experiments in Python
https://neurotechx.github.io/EEG-ExPy/
BSD 3-Clause "New" or "Revised" License
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Research showing the influence of the used SSVEP pattern image #206

Closed SjoerdTimovanVliet closed 1 year ago

SjoerdTimovanVliet commented 1 year ago

Dear Sir/madam

Most SSVEP research use on/off switching. However, several of my professors stated that the influence of showing the pattern image with an on/off stimuli frequency must be stated in research the use of your platform. However, most research only use On/OFF stimulation by showing a white and then a black rectangle. Could you provide me with any source information regarding this pattern image that I could use in my research? It would be greatly appreciated.

Best regards,

Sjoerd

JohnGriffiths commented 1 year ago

Hi Sjoerd.

Great to hear from you, happy to help on this.

The SSVEP experiment in eeg-notebooks uses gratings, not a rectangle.

The code lines defining the stimuli and timings for this are here:

https://github.com/NeuroTechX/eeg-notebooks/blob/a22501228677df0f968c49a0a699207380b1bd50/eegnb/experiments/visual_ssvep/ssvep.py#L27

Is that the info you're after?

oreHGA commented 1 year ago

Hey @SjoerdTimovanVliet , closing this for now, but feel free to re-open if you'd like to continue to conversation / have more questions