Figure 2.

Grand average auditory event-related potentials recorded to paired click stimuli at week 5 of the experiment, one week after chemotherapy injections had been completed. Responses to the first stimuli (S1) and second (S2) are shown, with P1 and N1 peaks labeled. Across all groups, responses to S2 are significantly dimished compared to S1 reflecting sensory gating. See Figure 3 for analysis of ERP gating, peaks, and latencies.