Beta-suppression in different conditions.

<p>Power changes relative to baseline are shown for one second after auditory onset and in a frequency range of 5–31 Hz (6A). Each plot depicts the difference in spectrum between the audiovisual and the auditory condition (AV-A). In the top row, differences in the low noise condition are shown, while in the bottom row, differences in the high noise condition are depicted (in both cases from left to right: anger, fear, neutral). In 6B, mean values for the auditory as well as the audiovisual condition are depicted for the range marked by the black frame (200–400 ms, 15–25 Hz). While stronger suppressions for audiovisual compared to auditory conditions can be seen in both emotion conditions, these differences are larger in the high-noise condition than in the low-noise condition (n.s. = not significant, ).