Fig. 1.
Stimulus types with corresponding physiological/psychophysical responses. A: virtual sound waveforms. The frequency of the pure tone is equal to the modulation frequency, mf, of the sinusoidal amplitude modulation (SAM) tone and the transposed tone. B: idealized auditory-nerve (AN) responses. C: period histograms of the AN model for tone/mf = 150 Hz. The numbers are the vector strength (VS) of the AN model response. Note that the peristimulus time histograms (PSTHs) of the AN model to both the pure tone and the transposed tone have fast-rising slopes and intercycle gaps. D: human interaural time difference (ITD) threshold (i.e., the smallest detectable left-ear-leading ITDs) estimated from Bernstein and Trahiotis (2002, their Fig. 3). SPL, sound pressure level.