Noise or tones within two octaves of stimulus frequency can interfere with stimulus perception {critical band masking}. Pure tones mask high frequencies more than low frequencies, because higher frequencies activate smaller basilar-membrane regions. Complex tones mask low frequencies more than high frequencies, because lower frequencies have more energy than higher frequencies [Sobel and Tank, 1994].
Previous-tone {preceding tone} intensity-frequency spectrum affects neuron current-tone response.
Different later tone can decrease auditory-neuron firing rate {two-tone suppression}.
1-Consciousness-Sense-Hearing-Physiology-Frequency
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Date Modified: 2022.0225