Single-Trial Decoding of Bistable Perception Based on Sparse Nonnegative Tensor Decomposition
Figure 6
The representative time-frequency plot for (a) cluster
1, (b) cluster 2, (c) cluster 3, and (d) cluster 4, respectively, of the sparse
NTF components. Red and blue represent strong and weak activity, respectively.
Note that the first cluster for the sparse NTF components contains only one
component in the high gamma band (50–60 Hz) with well-localized time-frequency
representation, and that clusters 2–4 have concentrated time-frequency
distributions in the delta band (1–4 Hz), alpha band (10–20 Hz), and low gamma
band (30–40 Hz), respectively.
