Chunk #13 — Results — Amplitude
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The emotional content of facial expressions significantly affected N1 amplitudes, as proved by the significance of "emotion" factor (F[1,38] = 6.91; p < 0.015) indicating larger N1 responses to distressed faces (-3.22 μV, SE = 1.1) than to neutral faces (-2.67 μV, SE = 0.84).