How Is the Intensity of a Sound Transduced into Neural

question 31

Multiple Choice

How is the intensity of a sound transduced into neural codes?

• A) As intensity increases,the slower hair cells fire.
• B) As intensity increases,the closer hair cells fire near the oval window.
• C) As intensity increases,the faster hair cells fire.
• D) As intensity increases,the number of hair cells that fire increases.

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Definitions:

Sensitization

The type of sensory adaptation in which we become more sensitive to stimuli that are low in magnitude. Also called positive adaptation.

Retinal Disparity

The slight difference in the visual images that each eye perceives because of their different angles in viewing the world, which is a key component in depth perception.

Oval Window

A membrane-covered opening that leads from the middle ear to the cochlea within the inner ear, playing a crucial role in the process of hearing.

Cochlea

The spiral-shaped, fluid-filled inner ear structure responsible for converting sound waves into nerve impulses to be interpreted by the brain.