Figure 7.

Descriptors of the categories in chorus noise used by the classifiers. A–C, Three TFRP parameters were chosen as descriptors: the BF firing rate, the bandwidth and the response duration. D, E, Two signal descriptors were selected corresponding to the firing rate and the CorrCoef values obtained in original conditions. F, G, Two main masker descriptors were presented corresponding to the firing rate and the CorrCoef values obtained in chorus noise alone. H, I, The three other masker descriptors are: (H) the ratio between the masker firing rate taken at the time the signal should have occurred and the initial masker firing rate during the first 200 ms of the masker and the number of action potentials emitted during the first (initial; I) and last (final; I) 50 ms of the masker alone over a 564-ms period. J, K, Two descriptors of the signal-to-masker ratio are presented and taken into account the firing rate of responses to the signal and to the masker; the two differ only on which part of the response to the masker is taken into account (see Materials and Methods). For each violin plot, the red dot represents the median value and the black lines represent significant differences between the median values (Kruskal–Wallis test, p < 0.05).