Research showing the influence of the used SSVEP pattern image

[SjoerdTimovanVliet]

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