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. Author manuscript; available in PMC: 2024 Aug 1.
Published in final edited form as: Disabil Rehabil Assist Technol. 2021 Aug 12;18(6):963–973. doi: 10.1080/17483107.2021.1958932

Figure 1 – Representative screenshots of the animation videos used in the questionnaire.

Figure 1 –

Three illustrative screenshots of the videos used to explain the concept of BCIs, BCI-based communication and mental strategies that can be used to control the BCI. For simplicity and consistency across mental strategies, we used a spelling matrix as a control application (middle panel) and a button press (and subsequent letter selection) as a control output (upper panel).