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Perception 4/e Cover Image
Perception, 4/e
Robert Sekuler, Brandeis University
Randolph Blake, Vanderbilt University

The Ear and the Auditory System

Learning Objectives

After studying the chapter, the student should be able to...

1.) Define sound and distinguish between it's perceptual and physical qualities. In addition, explain the properties associated with acoustic energy.

2.) Describe the nature of sound waves.

3.) Distinguish between sound level (intensity) and sound frequency. Include in your discussion the methods used when measuring each.

4.) Identify the components of the outer ear. Explain the specific function of each and the processes by which these functions are achieved.

5.) Identify the components of the middle ear. Explain the specific function of each and the processes by which these functions are achieved.

6.) Identify the components of the inner ear. Explain the specific function of each and the processes by which these functions are achieved.

7.) Describe, in detail, the complete auditory process (chain of events) beginning with the transmission of a sound wave through the air and ending with the stimulation of the hair cells.

8.) Contrast the two primary theories describing the way that pressure waves in the cochlear fluid affect the basilar membrane.

9.) Explain the complex process by which the basilar membrane responds to various frequencies and specify which of the two primary theories is thought to more correctly represent this process.

10.) Discuss how and why the cochlea generates sounds (cochlear emissions) that get sent to the outer ear in a reverse emission of acoustic energy.

11.) Discuss the process by which sound stimuli activate the various neural fibers of the auditory nerve.

12.) Describe the process in which the auditory neural network transitions from monaural to binaural.

13.) Discuss the cues or sources of information that assist in specifying sound location.

14.) Discuss the manner in which frequency is organized within the auditory cortex by the cortical neurons.