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Diagnostic temporal sequences of AU components. A schematic illustration of the temporal dynamics of AU components that discriminate (A) surprise and happy, (B) surprise and anger, (C) surprise and fear, and (D) disgust and anger. In each panel, the color-coded faces represent AU components (see AU labels below each face) that are activated sequentially in time (from 0 to 1.25 s, see white horizontal line) to discriminate between two emotions (see emotion words to the left).
