The Volley Principle Asserts That It Is Possible to Hear

question 121

Multiple Choice

The volley principle asserts that it is possible to hear sounds higher than 1,000 Hz because:

• A) areas far along the cochlea are specially sensitive to frequencies higher than 1,000 Hz.
• B) neurons can work together so their combined firing is greater than 1,000 times per second.
• C) areas within the ear bounce high frequency sounds back and forth,amplifying them and making it possible for them to be picked up by the basilar membrane.
• D) the basilar membrane sends a signal to the brain when sounds are at a frequency higher than 1,000 Hz,and neurons then fire; however,they fire at the same rate for all frequencies over 1,000 Hz.

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