Detection of quasitrapezoidal frequency and amplitude modulation

摘要: It has been proposed that the detection of frequency modulation (FM) sinusoidal carriers can be mediated by two mechanisms; a place mechanism based on FM-induced amplitude (AM) in excitation pattern, and temporal phase locking auditory nerve. The appears to “sluggish” does not play role for FM rates above about 10 Hz. also high carrier frequencies (above 5 kHz). This experiment provided further test hypothesis effectiveness depends upon time spent close extremes during cycle. Psychometric functions AM were measured frequencies, 1 6 kHz. waveform was quasitrapezoidal. Within each period, P, TSS at extreme or amplitude. transitions between extremes, with duration Ttrans had form half-cycle cosine f...