Fig. 1

Schematic representation of f ₀ contours of stimuli used in behavioral and FFRs experiments. a f ₀ contours of standard stimuli (solid line) and deviation stimuli (dashed line) used in behavioral experiments. b f ₀ contours of standard stimulus, deviation stimulus corresponding to JND (dashed line) and within or beyond JND (dotted lines) used in FFRs experiments. The percentage numbers indicated the deviation degree of the sweep slope