Fig. 3: Example of letter selection during a free spelling block. | Nature Communications

Fig. 3: Example of letter selection during a free spelling block.

From: Spelling interface using intracortical signals in a completely locked-in patient enabled via auditory neurofeedback training

Fig. 3

a Firing rate of the channels 25 and 100 used for “yes”/“no” classification on day 108. b Normalized firing rate and the speller state during the same 90 s period of a speller block. “Yes”/“no”/ timeout decisions are marked by vertical lines and the option selected in green and not selected in red. This example is part of the phrase “dekubitus po er soll arme maximal”, referring to bedsore and instructing the aide to change arm position. Source data are provided as a Source Data file.

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