Exam 11: Hearing I: Basic Processes and Pitch Perception
As the frequency increases, the place on the membrane that vibrates the most moves from _____.
C
Define loudness, pitch, and timbre and relate each to the physical sound stimulus.
Loudness is the perceptual quality most closely related to the level or amplitude of an auditory stimulus, which is expressed in decibels.
Pitch, the perceptual quality we describe as "high" or "low," can be defined as the property of auditory sensation in terms of which sounds may be ordered on a musical scale (Bendor & Wang, 2005). The idea that pitch is associated with the musical scale is reflected in another definition of pitch, which states that pitch is that aspect of auditory sensation whose variation is associated with musical melodies (Plack, 2014). While often associated with music, pitch is also a property of speech (low-pitched or high-pitched voice) and other natural sounds.
Timbre is closely related to the harmonic structure of a tone. The difference in the harmonics of different instruments is not the only factor that creates the distinctive timbres of musical instruments. Timbre also depends on the time course of a tone's attack (the buildup of sound at the beginning of the tone) and of the tone's decay (the decrease in sound at the end of the tone).
The wave form pattern of a pure tone is a(n) _____.
D
Auditory nerve fibers fire in synchrony with the rising and falling pressure of the pure tone, a phenomenon called _____.
Pitch is primarily determined by the _____ of the sound wave.
A complex tone composed of a 440 Hz tone, an 880 Hz tone, and a 1320 HZ tone is presented. Which part of the basilar membrane will respond
A guinea pig tonotopic map shows that a receptor close to the apex will respond to a tone of _____ Hz.
When the tip links in the cilia stretch, ion channels open and _____.
The sound quality that is related to the sounds clarity, "nasalness" or "reedy-ness" is _____.
The relationship between loudness and frequency can be shown graphically using _____.
Békésy discovered the traveling wave motion of the basilar membrane by _____.
_____ is the property of increasing pitch that accompanies increases in the tone's frequency.
The correct order of the ossicles in the middle ear (from ear drum to oval window) is _____.
If a pregnant mother reads the original version of The Cat in The Hat aloud
While pregnant, which version of The Cat in The Hat would the infant prefer after birth?
Bendor and Wang (2005), when presenting a complex tone with a 182 Hz fundamental frequency to a marmoset, found a neuron that responded to a 182-Hz tone when presented alone but not when any of the harmonics were presented alone. The neuron that responded just to 182-Hz tone is an example of a(n) _____ neuron.
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