CSD 2230 HUMAN COMMUNICATION DISORDERS Audiology The Profession Acoustics Anatomy Hearing Loss and Pathologies Assessment and TreatmentSlide 2
The Profession of Audiology The control required in: The counteractive action, distinguishing proof, and assessment of listening to clutters The determination and assessment of intensification frameworks The habilitation/recovery of people with listening to misfortuneSlide 3
What Kinds of Audiologists are There? Rehabilitative Audiologists Educational Audiologists Medical Audiologists Industrial Audiologists in Private Practice University-Based AudiologistsSlide 4
Why Are Audiologists Important?? Listening to misfortune meddles with correspondence… Adults Consequences Children Consequences VideoSlide 5
The Hearing SystemSlide 6
The Hearing System Basic schematic outline of the whole sound-related frameworkSlide 7
The Outer Ear Major Landmarks: Pinna External Auditory Meatus Tympanic MembraneSlide 8
Function of the Outer Ear Collect and pipe sound to the eardrum Protection ResonanceSlide 9
The Middle Ear Major Landmarks: Middle Ear Space Eustachian Tube Oval and Round Windows OssiclesSlide 10
Function of the Middle Ear Amplifier and Transformer ProtectionSlide 11
The Inner Ear Major Landmarks: Bony Labyrinth Cochlea Auditory and Vestibular Portions Organ of Corti Hair CellsSlide 12
Central Auditory PathwaysSlide 13
Types of Hearing Impairment lost affectability Auditory sensory system pathologySlide 14
Important Terms Time of onset Congenital Acquired AdventitiousSlide 15
Important Terms Time Course Acute Chronic Sudden Gradual Temporary Permanent Progressive FluctuatingSlide 16
Important Terms Number of Ears Involved Unilateral BilateralSlide 17
Hearing Sensitivity Loss " The ear is not as delicate as would be expected in distinguishing sound " Types: Conductive Sensorineural MixedSlide 18
Conductive Hearing Loss "Brought on by a strange diminishment or lessening of sound as it goes from the external ear to the cochlea"Slide 19
Sensorineural Hearing Loss "Created by a disappointment in the cochlea to transduce the sound from the center ear to neural driving forces in the VIII Nerve."Slide 20
Sensorineural Hearing Loss Implications include: A decrease in the affectability of the receptor cells in the cochlea A decrease in the recurrence determining influence of the cochlea A lessening in the dynamic scope of the frameworkSlide 21
Mixed Hearing Loss "A misfortune with both a conductive and sensorineural part."Slide 22
Auditory Nervous System Impairment Causes: Disease Disordered sound-related sensory system advancementSlide 23
Auditory Nervous System Impairment Kinds: Retrocochlear clutters Central sound-related handling issueSlide 24
Auditory Nervous System Impairment Auditory Characteristics : Reduced capacity to comprehend discourse in a commotion foundation Problems understanding discourse with decreased repetition Problems with limitation and lateralization Problems preparing typical or adjusted worldly signalsSlide 25
Auditory Pathologies Outer and center ear issue Conductive pathologies Cochlear issue Sensorineural pathologies Central sound-related disarranges Central sound-related pathologiesSlide 26
Outer and Middle Ear Disorders Structural imperfections because of embryologic deformities Structural changes optional to contamination or injurySlide 27
Microtia "an unusual diminutiveness of the auricle"Slide 28
Atresia "the nonappearance of an opening of the outside channel"Slide 29
Outer Ear Disorders Perforation of the tympanic filmSlide 30
Otitis Media Most normal reason for transient conductive listening to misfortune in youngsters Inflamation of the center ear Caused by eustachian tube disappointment Middle Ear DisordersSlide 31
Otitis Media Facts 76-95% of all children will have one scene of OM by age 6 Prevalence is most astounding amid the initial two years of life half of all children with one scene before their first birthday will have 6 or more sessions inside two years Most scenes happen in winter and spring Risk elements Cleft sense of taste Down disorder Native Americans Urban poor Day mind Secondhand smokeSlide 32
Otosclerosis "a bone issue that influences the stapes and the hard maze of the inward ear. The ailment procedure is portrayed by resorption of bone and new light arrangement around the stapes and oval window"Slide 33
Otosclerosis Facts: Hereditary Women will probably build up the turmoil Usually two-sided ProgressiveSlide 34
Cochlear Disorders Syndromes and acquired issue Syndromic issue Nonsyndromal issueSlide 35
Types of Nonsyndromic Disorders Dominant dynamic Dominant dynamic with grown-up onset Recessive innate SNHL X-connectedSlide 36
Noise Induced Hearing Loss The level of SNHL relies on upon The power of the commotion The ghostly piece of the clamor The span of introduction Individual defenselessnessSlide 37
Infections Congenital Cytomegalovirus HIV Rubella Syphilis ToxoplasmosisSlide 38
Infections Acquired Herpes Zooster Oticus (Chicken Pox) Mumps SyphilisSlide 39
Presbycusis Loss of listening to that bit by bit happens in many people as they develop old. It is assessed that 40-50 percent of individuals 75 and more seasoned have some level of listening to misfortune. It includes a dynamic loss of hearing, starting with high-recurrence sounds, for example, discourse. Presbycusis regularly happens in both ears, influencing them similarlySlide 40
Central Auditory Disorders VIII Nerve tumors Other maladies of the VIII Nerve Neural scatters Cochlear neuritis Diabetes mellitus Brain Stem issue Infarcts Gliomas Multiple sclerosis Temporal Lobe issueSlide 41
Hearing Assessment Main inquiries Is listening to typical? What is the level of listening to misfortune? What sort of listening to misfortune is it?Slide 42
Hearing Assessment Procedures Behavioral Measures of listening to conduct subject to the discernments and participation of the audience Nonbehavioral Measures Acoustic or physiological reactions recorded in relationship with an acoustic occasionSlide 43
Pure Tone Audiometry Major behavioral sound-related measure Measurement of unadulterated tone edges between 250-8000 Hz Air conduction Bone conductionSlide 44
Pure Tone Audiometry The aftereffects of PTA let us know Air conduction limits crosswise over recurrence lets us know whether hearing is ordinary or not If hearing via air conduction is NOT typical, the edges let us know the level of listening to misfortuneSlide 45
Pure Tone Audiometry The consequences of PTA let us know If hearing is typical or not the level of listening to misfortune Differences between hearing via air conduction and hearing by bone conduction let us know the kind of listening to misfortuneSlide 46
Air Conduction versus Bone Conduction Testing Air conduction tests the whole sound-related framework. Bone conduction sidesteps the conductive system, so it tests just the inward ear.Slide 47
The AudiogramSlide 48
What the Audiogram Says About the Impairment Within ordinary points of confinement Mild Moderate Severe Profound/hard of hearingSlide 49
Determining a Conductive Hearing LossSlide 50
Determining a Sensorineural Hearing LossSlide 51
Determining a Mixed Hearing LossSlide 52
Speech Audiometry Another behavioral measure of sound-related capacity Speech limits Speech Reception edge Speech Awareness edge Word acknowledgment testingSlide 53
Identifying Hearing Loss Through the First Year Communication agendas Parents\' reports Case history Informal perception Formal testing Visual Reinforcement Audiometry Behavioral Observation AudiometrySlide 54
Typical Response Levels to Sounds from Birth-2 yearsSlide 55
Nonbehavioral Measures of Hearing Auditory brainstem evoked reaction (ABER)Slide 56
Nonbehavioral Measures of Hearing Otoacoustic EmissionsSlide 57
Treatment Medical Most conductive listening to misfortunes, brought on by pathologies in the external and/or center ear, can be dealt with effectively by pharmaceutical and/or surgerySlide 58
Treatment Amplification Hearing guides are the most well-known treatment of sensorineural listening to misfortune Hearing guides enhance discourse and different sounds They work best for individuals with mellow through serious degrees of listening to misfortuneSlide 59
Treatment Cochlear Implants Used for youngsters and grown-ups who are hard of hearing These gadgets animate the sound-related nerve straightforwardly They are best for individuals who get almost no advantage from traditional portable hearing assistantsSlide 60
Treatment Habilitation/Rehabilitation Auditory Training Children and grown-ups Communication Strategies Speechreading, clamor administration, self-assuredness preparing Communication Methods Sign dialect, prompted discourse Counseling
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