Pitch Perception
This theory involves the concept that pitch perception depends on which part of the inner ear has cells with the greatest activity level.
-Less specific and better with HIGH frequency (4,000+ Hz)
Place Theory
This cue for sound localization, best for sounds with a sudden onset, relies on which ear the sound REACHES first (the ear closer to the source).
Time of Arrival
The inner fleshy part of the ear that gathers sound waves and helps in sound localization is called the:
Pinna
Sound waves that differ in frequency will be perceived of as having different _______.
Pitch
This form of deafness is caused by diseases, infections, or tumorous bone growth that prevent the middle ear from transmitting sound waves properly to the cochlea.
-sometimes temporary and can be corrected with surgery/hearing aids
Conductive deafness (middle-ear deafness)
In this theory, the basilar membrane vibrates in synch with sound causing action potentials at the same frequency.
Frequency Theory
This sound localization cue, most effective for high-frequency sounds, occurs when the sound is LOUDER in the ear closer to the source.
Sound Shadow/Intensity
A membrane of the inner ear where sound vibrates from the middle ear and enters the inner ear is called:
Oval Window
This property of sound refers to the number of compressions or waves per second, measured in hertz. It determines pitch perception. High values mean closely spaced waves, while low values mean waves are farther apart.
Frequency
If the cochlea suffers damage but it is confined to one part of the cochlea, that individual will lose:
Hearing of certain frequencies of sound
This theory is similar to frequency theory but rate matters.
Volley Principle
This sound localization cue, most effective for low-frequency sounds, occurs when the peaks and valleys of sound waves reach each ear at different times.
Phase differences
Receptor cells of the auditory system are called ___________________
Hair Cells
This characteristic of sound waves, measured by their height, determines the intensity or loudness of a sound.
Amplitude
What would a person with conductive deafness be able to hear better than a person with nerve deafness?
Themselves Talking
This theory best explains low frequency sounds (up to 1,000 Hz). It looks at how many action potentials (how often they're happening NOT where)
Frequency Theory
This part of the ear helps with sound localization.
Pinna
The snail-shaped structure that contains auditory receptors is called the ____________.
Cochlea
Sound waves that differ in amplitude will be perceived of as having different _______.
Intensity
This type of deafness results from damage to the cochlea, hair cells, or auditory nerve. It can affect specific frequencies depending on which part of the cochlea is damaged and may result from disease, loud noises, or inheritance.
Nerve deafness (inner-ear deafness)
According to the __________ theory, the basilar membrane resembles the strings of a piano in that each area along the membrane is tuned to a specific frequency.
Place
Comparisons between which two responses are helpful in locating the source of a sound?
The left ear and the right ear
These are the bones called that receive vibration from the tympanic membrane and concentrate it?
Ossicles
This is the measurement related to Pitch Perception.
Hertz (Hz)
Which deafness type may be fixed with surgery or hearing aids?
Conductive Deafness (middle-ear)