Extended Data Fig. 3: Stability of the decoder enables safe utilization of BSI.
From: Walking naturally after spinal cord injury using a brain–spine interface
a, Chronophotography and associated spectrogram, probabilities of left and right steps, modulation of muscle activity, ankle height, and peak probability of step cycles during a sequence involving walking, a voluntary pause (30 s, instructed), and resuming walking. The absence of false positive detections illustrates the robustness of the BSI. b, The bar plot reports the peak probability of walk (active) versus idle state, together with the confusion matrices reporting the detected rest versus left and right swing states (n = 31 and n = 49 samples for idle and active states respectively, unpaired one-tailed t-test ***, P < 0.001). c, Photographs illustrating sit to stand capacities without and with the BSI, including bar plots reporting balance capacities (scores) measured using the Berg Balance Scale.
