Which of the Following Best Describes How We Hear According

question 291

Multiple Choice

Which of the following best describes how we hear according to place theory?

• A) Different sound frequencies vibrate different portions of the basilar membrane, producing different pitches.
• B) Our perception of pitch corresponds to the rate or frequency at which the entire basilar membrane vibrates.
• C) We perceive differences in pitch according to the number of hair cells that vibrate at any one time.
• D) Different sound frequencies affect the intensity with which the eardrum vibrates, producing different pitches.

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Definitions:

Brain

The organ in the head of an animal or human that controls functions, movements, sensations, and thoughts.

Nerves

Bundles of fibers that transmit electrical impulses between the brain, spinal cord, and other parts of the body.

Spinal Cord

A long, thin, tubular structure made up of nervous tissue, which extends from the brain down the back, transmitting nerve signals between the brain and the rest of the body.

Neurons

The fundamental units of the brain and nervous system, responsible for receiving sensory input from the external world, sending motor commands to our muscles, and transforming and relaying the electrical signals at every step in between.