Figure 2—figure supplement 2. | High performance communication by people with paralysis using an intracortical brain-computer interface

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High performance communication by people with paralysis using an intracortical brain-computer interface

Figure 2—figure supplement 2.

Affiliation details

Stanford University, United States; Emory University and Georgia Institute of Technology, United States; Emory University, United States; Massachusetts General Hospital, United States; Brown University, United States; Rehabilitation R&D Service, Department of VA Medical Center, United States; Case Western Reserve University, United States; Louis Stokes VA Medical Center, United States; Harvard Medical School, United States
Figure 2—figure supplement 2.
Download figureOpen in new tabFigure 2—figure supplement 2. Example of the blockset structure for quantitative performance evaluation sessions.

Each blockset began with a 3 min calibration or bias calculation block (purple). Breaks (green) were interspersed throughout the data collection. Each blockset consisted of three evaluation blocks (orange), two minutes each, that tested either copy typing or grid performance. Copy typing performance was evaluated with two keyboards (T6 and T5: QWERTY and OPTI-II, T7: ABCD and OPTI-II). Evaluation blocks were presented in a pseudo-randomized order (detailed in Materials and methods: Quantitative performance evaluations). In this example, T6 was first evaluated on a grid block, followed by a QWERTY cued typing block, followed by an OPTI-II cued typing block.

DOI: http://dx.doi.org/10.7554/eLife.18554.010