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Terms in this set (128)
as the distance from a sound source doubles, the
Inverse Square Law sound's intensity reduces by half the SPL when no
obstruction is present (drop of 6 dB)
What is the relationship F0= lowest freq component of a complex periodic
between fundamental sound; harmonic is a regular and repeating multiple of
frequencies and the f0
harmonics?
In which frequencies and 30-3000 Hz, 55-65 dB
at what intensities are
most speech sounds
produced?
Define threshold the faintest sound where hearing is audible
SPL= used as output in transducers during audiometric
What is the relationship testing (calibrated in SPL)
between sound pressure HL= used on audiometer dial, normalized SPL scale to
level (SPL) and hearing zero
level (HL)? --closest relationship in med freq and largest in low
and high
Describe embryology and otic vesicle forms week 3, auditory placode turns into
the development of the otic pit. week 4 brachial arches form (tensor tympani,
hearing and balance stapedius). Week 6 auricle forms from hillock, TM
mechanisms forms; ossification of stapes occurs after birth
, Normal processes of 27wks utero: sound awareness
auditory behavior over the 6 mo: babbling until now not affected
lifespan
0-2 years: oral language and native sound system
Language and speech 2-3: produce speech in response to written marks
characteristics and made
development over the 3-6: intention, context, social
lifespan 8: spelling, independence in reading
9: less attention to decoding for meaning
What are the effects of effect of perception (distortion, recruitment, temporal
hearing loss on language resolution), phonetic features (voicing duration
and speech? frication place)
What are the effects of employer resistance to hiring person with HL (more
hearing loss on likely to be unemployed), educational deficits with HL
educational, vocational, due to inability to understand lecturer, social isolation
social, and psychological and depression, lower education level, loneliness,
functioning? stress, reduced physical health
outer ear: collects HF, increases sound pressure to
EC, binaural summation, localization
Describe the function of
middle: ratio of malleus to incus, size difference of TM
each of the three major
to oval window, impedance matching
parts of the hearing
inner: tonotopicity of BM and VIIIn; SOC localization
mechanism
and freq analysis; tectorial membrane displacement,
HC innervation
what is the function of hair IHC: afferently innervated (95%)
cells (outer and inner)? OHC: efferently innervated
What are the fluids found perilymph is in scala vestibili and tympani. endolymph
in the labyrinths of the in media.
inner ear? Endolymph in semicircular canals.
what impacts can hearing Delay in speech and language, reduced academic
loss cause for learning in achievement and vocabulary, social isolation and
children? poor self-concept, vocational choices