Figure 6.
Excitation-pattern (EP) and mean-average-spatial-derivative (MASD) tonotopic profiles for the SIN (left column) and ALT (right column) complex tones used in experiment 1, with fc = 5 kHz. Panels in the upper row show the EP profiles, identical for all phase-locking schemes. Panels in the four lower rows show the MASD profiles for each of the four phase-locking schemes described in Sec. 6A2. All profiles are plotted in dB relative to their maximum activity value. The black curves correspond to QERB ≈ 11, the gray curves to QERB ≈ 9.26. The gray curves are shifted by −5 dB on the ordinate axis for readability.