Means and standard deviations (s.d.'s) of the percentages of the tone-recognition responses across the group of five subjects using 8-band auditory chimera. The 16 small panels represent 16 combinations of four fine structures (column-wise) and four envelopes (row-wise). When the fine structure and envelope were from the same tone patterns, the stimuli were the original sounds and were not tested for tone recognition, as plotted in gray. Results from the remaining 12 combinations of fine structures and envelopes are shown in a histogram format in which the means and s.d.'s of the percentages of the responses as tone 1, 2, 3, or 4 are represented by the bars and the whiskers from left to right, as labeled in the lower left panel.