Koklear İmplantlıların Konuşma Performansı Üzerinde FM Sistem

Koklear İmplantlıların Konuşma Performansı Üzerinde FM Sistem

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Üzerinde FM Sistem Etkisi
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ÖZET
Amaç: Gürültülü ortamlarda Frekans Modulasyonlu (FM)
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ABSTRACT
The effects of FM system on cochlear implant
recipients’ speech performance
Objective: This study aimed to examine the effects of
Frequency Modulation (FM) system on cochlear implant
recipients’ speech understanding in noisy environments.
Material and Method: In this case study three cochlear
implant users whose speech performance were
evaluated ‘good’ ‘moderate’ and ‘bad’ according to their
monosyllabic word discrimination score in a quiet
condition were tested to show the effects of FM system
in a noisy condition. Threshold level (in dB HL) at 250,
500, 1000, 2000, 4000, 6000 Hz. and open set
monosyllabic
word
discrimination
scores
were
determined in quiet and in noisy conditions in three
cases. Moreover, these tests were also repeated with FM
system in noisy condition.
Results: In noisy condition without FM, a decrease was
found
in
hearing
threshold
levels
and
word
discrimination scores for all three subjects. With FM
system in noisy condition, hearing thresholds and word
discrimination scores again increased as in quiet setting.
Conclusion: FM system provides better speech
understanding in noisy conditions for cochlear implant
users by reducing the effects of noise, reverberation and
distance. It shows that cochlear implant users have an
advantage of better speech understanding in daily life
with FM system.
Anahtar Kelimeler: FM sistem; gürültü; koklear implant
Key
Words:
FM
system;
noise;
cochlear
implant
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e-mail: [email protected]
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: 28.02.2012
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: 07.09.2012
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sessiz ortamda %88; gürültülü ortamda sadece
koklear implant ile %60; gürültülü ortamda
koklear implant ve FM sistem ile %80; Vaka 3 için
sessiz ortamda %60; gürültülü ortamda %40;
gürültülü ortamda FM sistem ile %52 olarak
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