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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: IEEE Trans Neural Syst Rehabil Eng. 2016 Jul 13;25(6):704–714. doi: 10.1109/TNSRE.2016.2590959

Fig. 1.

Fig. 1

The SSVEP Shuffle Speller associates a letter (task symbol) with a particular SSVEP response (brain symbol) by placing it near the LED array which stimulates that response. The square and less-than characters represent space and backspace respectively. See Section VI-A or https://www.youtube.com/watch?v=JNFYSeIIOrw for further detail.