anaging people with normal...
TRANSCRIPT
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Dr. Douglas L. Beck Au.D.Executive Director of Academic SciencesOticon Inc.Somerset, NJ
MANAGING PEOPLE WITH NORMAL THRESHOLDS
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Hearing is
perceiving sound
Listening is
comprehending sound
The first 75 years of audiology were all about
hearing, the next 75 years will be
all about listening.
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It ain’t all about hearing!
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It is all about the brain…
we can make anyone hear,
we cannot make anyone listen.
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People live in a world where
cognition, attention, memory,
and hearing interact
and each plays a critical role
in listening.
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“Listening is where
hearing meets brain”
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To be at the top of the
food chain depends
more on LISTENING
than HEARING!
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Fluffy & Sparky
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The REAL challenge…
Beyond hearing.
Improve the opportunity
For listening success!
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An established goal of modern hearing aids is
to improve speech understanding for the wearer.
This goal is best achieved by improving SNR.
Goyette, Crukley & Galster. AJA March 2018
The Effects of Varying Directional Bandwidth in
HA Users’ Performance and Speech in Noise Performance
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Speech in quiet does not predict speech in noise.
JAAA, 2011 R. Wilson: Clinical experience with the Words-In-Noise Test on 3,430 veterans: Comparisons with PT Thresholds and WRS in Quiet.
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PREDICTING SIN DEFICITS FROM AUDIOGRAMS E&H MAY
2019 SHUB, MAKASHAY & BRUNGART
In occupations with hearing critical tasks, SIN may be more
important than thresholds (n=5487 people)
RESULTS SUGGEST
details of the audiogram are a
RELATIVELY INSENSITIVE PREDICTOR of
PERFORMANCE during SIN TASKS.
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As hearing loss increases,
the required SNR
increases.
Harvey Dillon, in HEARING AIDS 2012See page 7, Boomerang Press
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MRS. SMITH, A 35-YEAR-OLD CEO OF
A SMALL BUSINESS REVEALS
Difficulty hearing her husband and children at home
Difficulty hearing employees at weekly staff meetings
Difficulty hearing in noisy restaurants
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The Happy Talk
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37 million people
26million people
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POSSIBLE ETIOLOGIES?
Auditory Neuropathy Spectrum Disorder
Cochlear Synaptopathy
Hidden Hearing Loss
Auditory Processing Disorders
Neurocognitive Disorders
Attention Deficit Disorder
Attention Deficit Hyperactivity Disorder
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ADDITIONAL POSSIBLE ETIOLOGIES
Alzheimer’s Disease
Traumatic Brain Injury
Dementia
Extended High Frequency Hearing Loss
Dyslexia
Specific Language Disorders
Blast Exposure
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KILLION, SEMINARS IN HEARING, 2002.
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SPEECH IN NOISE TEST TIMES
HINT Sentence test Approx 2 mins
QuickSIN Sentence test Approx 2 mins
BKB-SIN* Sentence test Approx 2 mins
WIN Monosyllable test Approx 3 mins
*(Pediatric application per Andrea Hillock-Dunn AO Sept 7, 2015)
Other Pediatric Speech in Noise Tests: SPIN, HINT-C
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MAY/JUN 2019 WWW.AUDIOLOGY.ORG
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BENEFITS OF AN IMPROVED SNR
Thibodeau and Schaper (2014) suggested wireless technology
tools may allow users to approach SIN results that were
obtained by people with relatively normal-hearing ability.
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BENEFITS OF AN IMPROVED SNR
Thibodeau and DeConde Johnson (2014) reported that increased
use of wireless technology by people with hearing challenges
outside of educational settings were apparent and not limited
to those with hearing loss, and evidence shows that adults
with TBIs, particularly veterans, benefit from improved SNRs
while using RMs.
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BENEFITS OF AN IMPROVED SNR
Gallun, Papesh, and Lewis (2017) and
Beck, Larsen, and Bush (2018)
described successful use of FM systems by veterans.
In particular, they reported when audiologists worked
with patients having experienced blast exposure
and normal or near-normal audiograms, hearing aid
fittings were also successful.
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BENEFITS OF AN IMPROVED SNR
Saunders, Frederick, Arnold, Silberman, Chisholm,
and Myers (2018)…
CONCLUSION:
FM and RM systems using Bluetooth are effective
interventions for blast-exposed veterans with
normal or near-normal hearing sensitivity, these
tools should routinely be considered as an
intervention approach.
The benefits of mild amplification and use of RMs is
not limited to veterans.
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NOTHING NEW UNDER THE SUN…1989
92%purchased
the aids
85%worthwhile investment
Bennett (1989) evaluated hearing aid use by patients with hearing threshold levels of
20 dB or better at 500 and 1000 Hz, and 35 dB or better at 2000 Hz.
Of 98 patients who completed a 30-day trial with hearing aids, 92% elected to
purchase the aids and 85% considered their hearing aids to be a worthwhile
investment after 6 months of use.
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WELL-FITTED HEARING AIDS, SIN, AND HD
Roup, Post, and Lewis (2018):
GROUP ONE:
20 normal-hearing adults
(19-27 years of age) with no self-reported HDs,
GROUP TWO:
19 normal-hearing adults
(18-58 years of age) with self-reported HDs.
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WELL-FITTED HEARING AIDS, SIN, AND HD
GROUP TWO fitted binaurally with mild-gain,
receiver-in-the-canal (RIC) hearing aids for a four-
week trial with directional and noise reduction
algorithms engaged.
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GROUP TWO HEARING AID FITTINGS…
provided 5-10 dB of insertion gain between 1000 and 4000 Hz.
Assessment tools included:
HHIA, Auditory Processing Questionnaire (APQ), SCAN-3:A,
Dichotic Digits Test (DDT), Gaps-in-Noise (GIN) test and
500 Hz Masking Level Difference (MLD) task.
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67% stated hearing aids helped a little or a lot in quiet.
71% stated hearing aids helped a little or a lot in noise.
Results indicated that mild gain amplification is a viable
treatment option for some individuals who present with HD,
but whose hearing thresholds are WNL.
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REMOTE MICROPHONE SYSTEMS
RM systems are radio devices
RM systems improve SIN
1- by improving the SNR,
2- reducing reverberation, and
3- minimizing the deleterious effects of distance
Mroz, 2018;
Beck, Tomasula, and Sexton, 2006
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REMOTE MICROPHONE SYSTEMS
Today, most RM systems deliver the audio signal
from the microphone to radio receivers via
digital RF transmission.
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ADDRESSING THE NEEDS OF PEDIATRIC PATIENTS AND
THEIR PARENTS: AN INTERVIEW WITH JANE MADELL,
PHD INSIDE THE RESEARCH | JULY 2019 HEARING
REVIEW
Absolutely. There is no doubt.
Children and adults with hearing loss and/or
listening difficulty absolutely need,
and would benefit from, remote microphones.
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DIGITAL REMOTE MICROPHONE SYSTEMS
Superior speech recognition in noise is possible
with the use of digital RM systems relative to
FM systems.
(Thibodeau, 2014; Wolfe et al, 2013b)
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REMOTE MICROPHONE SYSTEMS
Keith and Purdy (2014)…
FM systems are being replaced by RM systems
and that the latter have performed very well for
people with APD, dyslexia, autism spectrum
disorder, and attention and other learning
disorders.
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REMOTE MICROPHONE SYSTEMS
Superior speech recognition in noise…with the
use of digital RM systems relative to FM
systems.
(Thibodeau, 2014; Wolfe et al, 2013b)
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REMOTE MICROPHONE SYSTEMS
Salehi, Parsa, and Folkeard (2018)…
hearing aids with directional mics are the most common solution to
SNR problems and that they offer 2-3 dB of SNR benefit in typical
fittings.
RMs enhance listening by increasing SNR up to 20 dB.
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Are we offering information, hearing aid trials,
SNR-enhancing technologies, and services that
may enhance the QoL of patients…including those
with slight or mild hearing losses and/or complaints
of HDs and trouble understanding SIN?
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Or, as questioned by Roup (2016)…
Are we doing a dis-service to patients who seek their care, when they
label their hearing as normal or mild, despite complaints and supra-
threshold auditory deficits in the presence of hearing WNL as
determined by traditional audiometric tests?
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People live in a world where cognition,
attention, memory, and hearing interact and
each plays a critical role in listening.
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OUR CHALLENGE
Beyond hearing.
Improve the opportunity
For listening success!
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37 million people
26million people
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Beck, DL, Danhauer JL, Abrams HB, et al. Audiologic considerations for people with normal hearing sensitivity yet hearing difficulty and/or speech-in-noise problems. Hearing Review. 2018;25(10) [Oct]:28-38.
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Salehi, Parsa, and Folkeard (2018) reported
RMs can significantly enhance listening by
offering an increase in the SNR of up to 20 dB.
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…performance with technology is what will determine
functional outcome.
Pediatrics and Hearing and Change . Flexer C, Madell J. (2014) Why Hearing is Important in Children. Chapter 1, in Pediatric Audiology Diagnosis, Technology and Management. Second Edition. Editors: Jane Madell and Carol Flexer. Published by Thieme. http://www.audiology.org/news/pediatrics-and-hearing-and-change
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