Chapter 06: Assessment of Peripheral and Central Auditory Function

The basic tools of the hearing instrument specialist are the central auditory assessment battery.

The auditory canal naturally amplifies sounds around its resonant frequency, measured between 2,000 Hz and 5,000 Hz.

The ossicular chain amplifies acoustical vibrations between the outer and inner ear by a factor of _____.

Considering the enormous tympanic membrane in comparison to the footplate of the stapes, the ossicles concentrate the sound pressure vibrations with an amplification of a factor of _____ times.

This resonancy is _____ due to the insertion of most custom in-the-ear hearing instruments.

Due to the lever principle, the ossicles act as a fulcrum and create an additional amplification of _____ times.

The site of auditory transduction in the inner ear is the _____.

The Organ of Corti _____. (check all that apply)

The motion of the basilar membrane is _____:

Nerve fibers in the Organ of Corti are of this/these types. (check all that apply)

The fact that hair cells in different spots on the cochlea react to specific frequencies, with high frequencies near the _____, is termed _____.

The cochlea works as a _____.

The cochlea analyzes signals and noise into their constituents and _____ their components into areas along its _____.

A pure tone is also called a _____. (check all that apply)

Air conduction testing includes: (check all that apply)

The most common assessment of the Peripheral Auditory Assessment is the _____.

Bone conduction assessment bypasses _____.

You can demonstrate bone conduction hearing by telling the patient and family to _____. (check all that apply)

The ink color for posting air and bone conduction score for the Right and Left ears respectively are:

The symbols used for air conduction testing for the Right and Left sides are, respectively:

The symbols for masked air conduction for the Right and Left sides are respectively:

The symbols used for masked bone conduction for the Right and Left sides respectively are:

The symbols for unmasked bone conduction for the Right and Left sides respectively are:

Audiological units are measured in _____.

Audiometric O is defined as:

The human hearing spectrum ranges from _____ to _____ Hz.

Human hearing is differentially sensitive to frequency, meaning that the normalized threshold for hearing at 10,000 Hz is approximately _____ dB.

Normal hearing is within the range of _____ to _____ dB SPL.

A patient registers thresholds with an average between 40 dB and 60 dB SPL. This range represents a severe hearing loss.

I will be able to draw the speech banana and explain its significance when I am at the Academy for my lab training.

Crossover results when:

Potential crossover is due to _____.

Interaural attenuation via air conduction is _____ dB SPL.

Interaural attentuation via bone conduction is _____ dB SPL.

Speech Audiometry determines how well a person understands speech. (check all that apply)

Word recognition tests are performed at which intensity level?

How may phonetically balanced words are used to determine word recognition?

Persons with SNHL [sensorineural hearing loss] generally have good to excellent SDS [speech discrimination scores] WRS [word recognition scores]. (check all that apply)

Immittance audiometry generally consists of three separate tests, which are:

Impedance is the _____ to the flow of acoustical signals.

Admittance is the _____ of the flow of acoustical signals.

The stapedius and tensor tympani muscle automatically contract when presented with loud sounds.

This test helps determine if the HL is sensorineural or conductive in origin.

The tympanometer is used for the following tests.

The primary acoustic reflex characteristics are:

The 10 second tone used to measure the stapedius muscle’s ability to maintain a sustained contraction is _____Hz.

The acoustical reflex is primarily determined by:

ASR is absent in HL greater than:

ASR is normal in PTA of less than:

The following tympanogram is considered:

The tympanogram below demonstrates:

This tympanogram demonstrates:

In acoustic reflex testing, the softest level which causes these muscles to contract is noted at several frequencies.