Understanding Pitch Perception in the Cochlea

Very Hard Unit 3: Sensation & Perception Auditory System

In the realm of auditory perception, the cochlea plays a vital role in converting sound vibrations into neural signals. It is within this structure that the organ of Corti, lined with hair cells, transduces sound waves into electrical impulses. However, different sounds, such as a low bass note versus a high-pitched tone, are processed through distinct mechanisms involving frequency and place theory. Which of the following statements best describes the principles underlying our perception of pitch in relation to the cochlear structure and its function?

Place theory explains how the cochlea responds to low frequencies by stimulating hair cells near the apex.

The frequency theory asserts that frequency of a sound wave is detected by stimulation of hair cells across the entire length of the cochlea.

Both frequency and place theories work together to explain pitch perception for all frequencies within the basilar membrane.

Place theory is primarily effective for identifying higher frequency sounds, while frequency theory is responsible for lower frequencies.

The cochlea's activity is unrelated to pitch perception but solely to loudness of sounds.

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