In the context of AP Psychology, which of the following best defines the frequency theory of hearing?

• A. The frequency theory states that the rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone, enabling us to sense its pitch.
• B. The frequency theory claims that the intensity of a sound is determined by the amplitude of the sound wave.
• C. The frequency theory suggests that different areas of the cochlea are activated by different frequencies, allowing us to perceive pitch.
• D. The frequency theory proposes that sound localization is determined by the time difference in which sound waves reach each ear.

Answer: (A)

Verified step by step guidance

1. Step 1: Understand that the frequency theory of hearing is a concept in auditory perception explaining how we perceive pitch.
2. Step 2: Recognize that the frequency theory states the rate at which nerve impulses travel up the auditory nerve corresponds to the frequency of the sound wave.
3. Step 3: Note that this means the auditory nerve fires action potentials at the same frequency as the sound wave, allowing the brain to interpret pitch based on this firing rate.
4. Step 4: Differentiate this from other theories, such as the place theory, which involves different areas of the cochlea responding to different frequencies.
5. Step 5: Conclude that the frequency theory specifically links the frequency of the sound wave to the rate of neural impulses, which is how pitch is sensed according to this theory.