Figure 1: Schematic illustration of the experimental groups. All mice were noise exposed at day 0 and either analyzed on day 7 (7-day groups) or on day 14 (14-day groups) post-exposure. Double groups were noise exposed for second time at day 7 and either investigated immediately after this trauma (7-day group-double) or 1 week later (14-day group-double) and compared to the corresponding single group (7-day group-single, 14-day group-single).