İşitme cihazı işlemleme gecikmesinin santral işitsel işlemleme becerilerine  etkisi
The effect of hearing aid processing delay on central auditory processing skills
Yazar: SÜLEYMAN KÜÇÜK
Danışman: ÖĞR. GÖR. ÜMİT CAN ÇETİNKAYA
İstanbul Aydın Üniversitesi / Lisansüstü Eğitim Enstitüsü / Odyoloji Ana Bilim Dalı
Derece: Yüksek Lisans, 2024
Konu: Kulak Burun ve Boğaz = Otorhinolaryngology (Ear-Nose-Throat)

Özet:
İşitme cihazları işitme kayıplı bireylerin günlük hayatta karşılaştığı sorunları
azaltmak ve işitme kayıplı bireylerin yaşam kalitelerini arttırmak amacıyla özel
olarak tasarlanmış kişiye özel olarak ayarlanabilen cihazlardır. Günümüzde
kullanılan dijital işitme cihazları akustik uyaranları bireyin işitme kaybına ve
ihtiyaçlarına uygun bir şekilde işlemlerken belli bir gecikmeye maruz bırakır. Bu
gecikmeye işlemleme gecikmesi denir. Dijital işitme cihazlarında işlemleme
gecikmesi hakkında yapılan çeşitli araştırmalar mevcut olmakla beraber literatürde
mevcut olan yaygın görüş 10 ms den daha az olması gerektiğidir. Bu çalışmanın
amacı 10 ms'den çok daha düşük işlemleme gecikmelerinin temporal işlemleme
yeteneğine ve spektral işlemleme yeteneğine etkisini incelemektir.
Çalışmaya yaşları 41- 75 arasında değişen bilateral simetrik hafif ve orta
derecede sensörinöral tipte işitme kaybına sahip ve bilateral işitme cihazı kullanıcı
olan 20 birey dahil edilmiştir. Çalışmaya katılan katılımcılara iki farklı işitme
cihazı işlemlemesine sahip olan işitme cihazları ile uyarlama yapılmıştır. İşitme
cihazları uyarlaması yapıldıktan sonra katılımcılara iki farklı işlemleme gecikmesi
altında Frekans Pattern Testi, Süre Pattern Testi, Rastgele Aralık Tespit Etme Testi
ve son olarak Spectral-Temporally Modulated Ripple Test'i yapılmıştır. Elde
edilen tüm veriler işitme cihazının işlemleme gecikmesinin yapılan testlere etkisi
açısından istatiksel olarak karşılaştırılmıştır.
Yapılan istatiksel analiz sonucunda işitme cihazının işlemleme gecikmesinin
Frekans Pattern Testi, Süre Pattern Testi, Rastgele Aralık Tespit Etme Testi ve
Spectral-Temporally Modulated Ripple Test'i arasında istatiksel olarak anlamlı bir
ilişki olduğu tespit edilmiştir. İşitme cihazlarının işlemleme gecikmesi düşükken
elde edilen sonuçlara göre katılımcılar, testlerde daha yüksek skorlar elde etmiştir.
Çalışmada elde ettiğimiz bulgular özellikle son yıllarda yapılan ve işitme
cihazı işlemleme gecikmesinin, akustik uyaranlarda bozulmalara sebebiyet
verebileceğini ve bu sebeple işitme kayıplı bireylerde algısal sorunlara yol
açabileceğini bildiren çalışmaları destekler niteliktedir. Literatürde yapılan
çalışmalar incelendiğinde işitme cihazı işlemleme gecikmesinin Frekans Pattern
Testi, Süre Pattern Testi, Rastgele Aralık Tespit Etme Testi ve Spectral-Temporally
Modulated Ripple Test'ine etkisini inceleyen çalışmaya rastlanmamıştır.
Yaptığımız çalışma bu açıdan literatüre katkı sağlamaktadır. İşitme cihazları
işlemleme gecikmesinin önemini anlamak ve merkezi işitsel işlemleme sistemine
etkisinin daha iyi anlaşılabilmesi bu alanda daha fazla çalışmaya ihtiyaç
duyulmaktadır.
Anahtar Kelimeler: İşitme cihazı işlemleme gecikmesi, temporal işlemleme,
spektral işlemleme

Abstract:
Hearing aids are individually adjustable devices specially designed to reduce
the problems faced by individuals with hearing loss in daily life and to increase the
quality of life of individuals with hearing loss. Today's digital hearing aids cause a
certain delay in processing acoustic stimuli in accordance with the individual's
hearing loss and needs. This delay is called processing delay. Although there are
various studies on the processing delay in digital hearing aids, the common opinion
in the literature is that it should be less than 10 ms. The aim of this study is to
examine the effect of processing delays much lower than 10 ms on temporal
processing ability and spectral processing ability.
20 individuals aged between 75 and 41, with bilateral symmetrical mild and
moderate sensorineural hearing loss and bilateral hearing aid users were included
in the study. The participants in the study were fitted with hearing aids that had
two different hearing aid processes. After adaptation to the hearing aids, the
participants underwent the Frequency Pattern Test, Duration Pattern Test, Random
Interval Detection Test and finally the Spectral-Temporally Modulated Ripple Test
under two different processing delays. All data obtained were compared
statistically in terms of the effect of the processing delay of the hearing aid on the
tests performed.
As a result of the statistical analysis, it was determined that there was a
statistically significant relationship between the processing delay of the hearing aid
and the the Frequency Pattern Test, Duration Pattern Test, Random Interval
Detection Test and the Spectral-Temporally Modulated Ripple Test. According to
the results obtained when the processing delay of the hearing aids was low, the
participants showed higher performance in the tests.
The findings we obtained in the study support studies conducted in recent
years, which report that hearing aid processing delay may cause distortions in
vi
acoustic stimuli and therefore cause perceptual problems in individuals with
hearing loss. When studies in the literature were examined, no study was found
examining the effect of hearing aid processing delay the Frequency Pattern Test,
Duration Pattern Test, Random Interval Detection Test and the SpectralTemporally Modulated Ripple Test. Our study contributes to the literature in this
respect. More studies are needed in this area to understand the importance of
hearing aid processing delay and to better understand its impact on the central
auditory processing system.
Keywords: Hearing aid processing delay, temporal processing, spectral processingHearing aids are individually adjustable devices specially designed to reduce
the problems faced by individuals with hearing loss in daily life and to increase the
quality of life of individuals with hearing loss. Today's digital hearing aids cause a
certain delay in processing acoustic stimuli in accordance with the individual's
hearing loss and needs. This delay is called processing delay. Although there are
various studies on the processing delay in digital hearing aids, the common opinion
in the literature is that it should be less than 10 ms. The aim of this study is to
examine the effect of processing delays much lower than 10 ms on temporal
processing ability and spectral processing ability.
20 individuals aged between 75 and 41, with bilateral symmetrical mild and
moderate sensorineural hearing loss and bilateral hearing aid users were included
in the study. The participants in the study were fitted with hearing aids that had
two different hearing aid processes. After adaptation to the hearing aids, the
participants underwent the Frequency Pattern Test, Duration Pattern Test, Random
Interval Detection Test and finally the Spectral-Temporally Modulated Ripple Test
under two different processing delays. All data obtained were compared
statistically in terms of the effect of the processing delay of the hearing aid on the
tests performed.
As a result of the statistical analysis, it was determined that there was a
statistically significant relationship between the processing delay of the hearing aid
and the the Frequency Pattern Test, Duration Pattern Test, Random Interval
Detection Test and the Spectral-Temporally Modulated Ripple Test. According to
the results obtained when the processing delay of the hearing aids was low, the
participants showed higher performance in the tests.
The findings we obtained in the study support studies conducted in recent
years, which report that hearing aid processing delay may cause distortions in
acoustic stimuli and therefore cause perceptual problems in individuals with
hearing loss. When studies in the literature were examined, no study was found
examining the effect of hearing aid processing delay the Frequency Pattern Test,
Duration Pattern Test, Random Interval Detection Test and the SpectralTemporally Modulated Ripple Test. Our study contributes to the literature in this
respect. More studies are needed in this area to understand the importance of
hearing aid processing delay and to better understand its impact on the central
auditory processing system.
Keywords: Hearing aid processing delay, temporal processing, spectral processing