Lecture Outline (SPAU 3341/AuD 6310)

Part 3

  1. Masking

A.    Factors

                                                1.         Interaural Attenuation

                                                2.         Shadow audiogram

                                                3.         Occlusion Effect

B.     Types of Masking Noise

C.     When to Mask

                                                   1.      A/C

                                                   2.      B/C

                                                   3.      SRT

                                                   4.      SRS

D.    How Much to Mask

                                                   1.      Undermasking

                                                   2.      Overmasking

                                                   3.      Effective Masking

                                                   4.      Formula

E.     Procedure

F.      Masking Dilemma

  1. Immittance Measures
    1. Electroacoustic Principles

1.      Impedance

2.      Admittance

3.      Immittance

B.   Equipment

C.   Measurements/components of Immittance Measures

1.      Static Compliance

2.      Tympanometry

a.       Tymp Types

b.      Vector Tympanometry

c.       Types of Units

Relative (represents data on set scale of 0 – 10)

Absolute (represents data in exact units of measure)

d.      multi-frequency component tympanometry

3.            Acoustic Reflexes

a.       Ipsilateral AR pathway

b.      Contralateral AR pathway

c.       Present vs absent AR

4.            Special Tests

a.       Eustachian tube dysfunction

b.      Reflex decay

Benefits

Problems

 III.             Electrophysiology

    1. Evoked Potentials

1.         Electrocochlography

2.         Auditory Brainstem Response Pathway

a.       Pathways

b.      Generators

3.  Middle Latency Auditory EP

4.  Late Cortical Auditory EP

IV.    Otoacoustic Emissions

A.    Spontaneous

    1. Distortion Product
    2. Transient

V.  Other Areas in Audiology

    1. Counseling
    2. Pseudohypocusis
      1. Other terms
      2. Gender and Age Differences
      3. Signs of Pseudohypocusis
      4. Audiological findings
      5. Special tests

C. Tinnitus Management

D.  Hearing Aids

      1. Trouble Shooting

2.   Cochlear Implants

3.   Hearing Conservation

E.  Prevention of hearing loss

F.  Cerumen Management

G.  Assistive Listening Devices

H.  Vestibular Testing