Speech Disorders II
Audiometry Coming Later
Paperette Due TODAY
‘Hearing’ Speech with Dyslexia
• Traditional dyslexia
– Normal intelligence & sensory ability
– Difficulty Reading, Writing & Spelling
• Visual dysfunction
• New View on Dyslexia
(Wallace & Flowers, under review)
– Multisensory matching difficulties
– Exp: Which of two flashes occurred first
• With/without coincident ‘beep’
• Change latency of visual flash relative to beep 50 – 400 ms
– Result: Dyslexics performance is enhanced over greater
latencies (up to 350 ms)
• Disturbed multisensory matching
It’s not a tumor…
• Symptoms
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Buzzing & ringing
Poor balance
Fullness
Poor speech discrimination
• Population
– Women
– Middle Aged
– Multiple generations of tumors
• Diagnosis
– Acoustic Neuroma (neurofibromatosis 2)
• Benign tumors grow along the auditory
nerves
– Prohibits signals from cochlea to brain
Capping Hearing
• Symptoms
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Normal tympanic response
Normal thresholds
Poor Speech reception threshold
Fluctuating hearing loss
• Population
– Jaundiced babies
– Premature births
• Diagnosis
– Auditory Neuropathy
• Auditory nerve problems
– No cochlear or conductive difficulty
• Hearing loss may be progressive
– May self-resolve (by age 2)
– May benefit from cochlear implant
Helen Keller
“Deafness cuts one off from
people, whereas blindness cuts one
off from things”
Profile of a Partially Deaf Person
• Early hearing loss
– Spoken language, reading
– Early diagnosis to facilitate development
• Mixed diagnoses common
– Intelligence, attention deficit or hearing loss
• Psychosocial ramifications –
communicative disorder
– Anger & introversion
• Lack of empathy
• Inadequate impulse control
– Depression
• Self-esteem
– Drug abuse
• 15% in deaf/hard of hearing vs. 7% normal
population (NCID)
Social Consequences
• Hearing loss influences in development
– Emotional, social health
• Factors severity of social consequences
– Amount of hearing loss
• Moderate to profound
• Worse or better?
– Age
• Greater difficulty at earlier stage
– Gender
• Female advantage?