Discrimination score of artificial cochlea using peripheral equipment.

1996 ◽  
Vol 39 (5) ◽  
pp. 583-584
Author(s):  
TOMOKO SHINTANI
1977 ◽  
Vol 42 (3) ◽  
pp. 408-415 ◽  
Author(s):  
Donald D. Dirks ◽  
Candace Kamm ◽  
Deborah Bower ◽  
Anne Betsworth

Performance-intensity (PI) functions for phonetically balanced (PB) word lists were obtained for a group of normal listeners (27 ears), and for two groups of patients with cochlear (89 ears) and retrocochlear disorders (eight ears). Listeners with normal hearing or cochlear disorders exhibited mild to moderate reductions in discrimination score as the speech level was raised above the PB maximum. In contrast, patients with retrocochlear disorders showed a pronounced rollover phenomenon, characterized by a rapid decline in performance as the speech level was raised above the maximum discrimination score.


2020 ◽  
Vol 50 (1) ◽  
pp. 9
Author(s):  
Widayat Alviandi ◽  
Jenny Bashiruddin ◽  
Brastho Bramantyo ◽  
Farisa Rizky

Background: Patients with hearing disturbance will generally undergo pure tone audiometry andspeech audiometry in a quiet room, but those examinations cannot evaluate the ability to understand speech in daily environment with a noisy background. Words in noise test will provide valuable informationregarding patient’s hearing problem in noise. Purpose: To evaluate the hearing threshold using wordsin noise test in adults with normal hearing. Method: This cross-sectional study was conducted in CiptoMangunkusumo Hospital from January to April 2017. All subjects who fulfilled the inclusion and exclusioncriteria underwent pure tone audiometry, speech audiometry, and words in noise test. Results: A total of71 individuals with normal hearing were recruited for this study. Words in noise test showed the medianvalue of 67 dB and 100 dB for Speech Recognition Threshold (SRT) 50% and Speech DiscriminationScore (SDS) 100%, respectively. The SRT 50% and SDS 100% were significantly higher in the age group40–60 years compared to the age group 18–39 years. There was also a statistically significant differencebetween males and females at SRT 50% assessed by words in noise audiometry. Conclusion: Wordsin noise test showed a statistically significant difference in SRT 50% and SDS 100% between two agegroups, but no difference was found between genders. The result of this study can be used as a referencefor SRT and SDS values of speech audiometry test in noise.Keywords: words in noise, speech audiometry, speech recognition threshold, speech discrimination score ABSTRAKLatar belakang: Pasien dengan gangguan pendengaran umumnya menjalani pemeriksaanaudiometri nada murni dan audiometri tutur di ruangan yang sunyi, tetapi pemeriksaan ini tidakdapat menggambarkan kemampuan pemahaman wicara di lingkungan sehari-hari yang ramai. Testutur dalam bising dapat mengevaluasi masalah pendengaran pasien dalam keadaan bising. Tujuan:Untuk mengevaluasi ambang pendengaran menggunakan tes tutur dalam bising pada orang dewasadengan pendengaran normal. Metode: Penelitian potong lintang ini dilakukan di Rumah Sakit CiptoMangunkusumo dari Januari hingga April 2017. Semua subjek yang memenuhi kriteria inklusi daneksklusi menjalani pemeriksaan audiometri nada murni, audiometri tutur, dan tes tutur dalam bising.Hasil: Sebanyak 71 orang dengan pendengaran normal diikutsertakan dalam penelitian ini. Tes tuturdalam bising menunjukkan nilai median masing-masing 67 dB dan 100 dB pada Speech RecognitionThreshold (SRT) 50% dan Speech Discrimination Score (SDS) 100%. SRT 50% dan SDS 100% secarasignifikan lebih tinggi pada kelompok usia 40–60 tahun dibandingkan dengan kelompok usia 18–39 tahun. Hasil pemeriksaan tes tutur dalam bising menunjukkan perbedaan yang signifikan antara laki-laki dan wanita pada nilai SRT 50%. Kesimpulan: Tes tutur dalam bising menunjukkan perbedaan yang bermakna secara statistik pada SRT 50% dan SDS 100% antara dua kelompok umur, tetapi tidak ada perbedaan signifikan diantara jenis kelamin. Hasil penelitian ini dapat digunakan sebagai acuan untuk nilai SRT dan SDS pada pemeriksaan audiometri tutur dalam bising.


2017 ◽  
Vol 27 (3) ◽  
pp. 209 ◽  
Author(s):  
LáShauntá M. Glover ◽  
Mario Sims ◽  
Karen Winters

<p class="Pa5"><strong>Objectives: </strong>1) To examine the association of multiple dimensions of discrimination with reported trust and satisfaction with providers; 2) to report within-group differences among African Americans (AAs). </p><p class="Pa5"><strong>Methods: </strong>Descriptive cross sectional study. The study population included AAs aged 35 to 84 years from the Jackson Heart Study (JHS) (N=5,301). Poisson regression (PR) was used to quantify the association between perceived discrimination and reported trust and satisfaction with providers before and after controlling for selected characteristics. </p><p class="Pa5"><strong>Main Measures: </strong>Measures of perceived discrimination included everyday, lifetime, burden from lifetime discrimination, and stress from discrimination. Outcomes included trust and satisfaction with providers. </p><p class="Pa5"><strong>Results: </strong>The mean everyday discrimination score was 2.11 (SD±1.02), and the mean lifetime discrimination score was 2.92 (SD±2.12). High (vs low) levels of everyday discrimination were associated with a 3% reduction in the prevalence of trust in providers (PR .97, 95% CI .96, .99) in all models. In fully-adjusted models, high (vs low) lifetime discrimination was associated with a 4% reduction in the prevalence of trust and satisfaction (PR .96, 95% CI .95, .98). Burden of discrimination was not associated with trust or satisfaction, but stress from discrimination was inversely associated with satisfaction. </p><p class="Pa5"><strong>Conclusions: </strong>The significant association between discrimination and mistrust and dissatisfaction suggests that health care providers should be made aware of AA perceptions of discrimination, which likely affects their levels of trust and satisfaction.</p><p class="Pa5"><em>Ethn Dis. </em>2017;27(3):209-216; doi:10.18865/ed.27.3.209 </p>


1992 ◽  
Vol 106 (6) ◽  
pp. 500-503 ◽  
Author(s):  
A. E. Hinton ◽  
R. T. Ramsden ◽  
R. H. Lye ◽  
J. E. M. Dutton

AbstractIn the quest for hearing preservation in patients with acoustic schwannomas it is essential that surgeons do not lose sight of the concept of ‘useful’ hearing. There is an important difference between hearing preservation which pleases the surgeon and that which will be appreciated by the patient.Tumour size, pure tone audiogram average differences between ears and speech discrimination scores have been recorded in a series of 114 patients with unilateral acoustic schwannomas. Criteria for useful hearing are presented in terms of pure tone audiogram average difference and speech discrimination scores.There were 11 patients (10 per cent) with a speech discrimination score of 50 per cent or more, a pure tone audiogram average difference of 30 dB or better and a tumour size of no more than 2 cm. Only one patient (0.9 per cent) had a speech discrimination score of 50 per cent or more, a pure tone audiogram average difference of 20 dB or better and a tumour size of no more than 1 cm.It is concluded that hearing preservation techniques may be applicable to between 1 and 10 per cent of patients with unilateral acoustic schwannomas.


2011 ◽  
Vol 139 (9) ◽  
pp. 3069-3074 ◽  
Author(s):  
Andreas P. Weigel ◽  
Simon J. Mason

This article refers to the study of Mason and Weigel, where the generalized discrimination score D has been introduced. This score quantifies whether a set of observed outcomes can be correctly discriminated by the corresponding forecasts (i.e., it is a measure of the skill attribute of discrimination). Because of its generic definition, D can be adapted to essentially all relevant verification contexts, ranging from simple yes–no forecasts of binary outcomes to probabilistic forecasts of continuous variables. For most of these cases, Mason and Weigel have derived expressions for D, many of which have turned out to be equivalent to scores that are already known under different names. However, no guidance was provided on how to calculate D for ensemble forecasts. This gap is aggravated by the fact that there are currently very few measures of forecast quality that could be directly applied to ensemble forecasts without requiring that probabilities be derived from the ensemble members prior to verification. This study seeks to close this gap. A definition is proposed of how ensemble forecasts can be ranked; the ranks of the ensemble forecasts can then be used as a basis for attempting to discriminate between corresponding observations. Given this definition, formulations of D are derived that are directly applicable to ensemble forecasts.


2014 ◽  
Vol 556-562 ◽  
pp. 1726-1729
Author(s):  
Bai Fen Liu ◽  
Ying Gao

Nowadays, various test equipment tend to be more intelligent, the test equipment of the volt-ampere characteristic of CT is so too. As the development of the electronics, VLSI(SCM) is manufactured. The purpose of our project is to scheme out a intelligent test system by the computer technique and the test technique. This equipment is mostly made of the SCM system and the peripheral equipment. We control the output of the digital transformer by SCM. The output voltage can make the TL494 create PWM wave. The wave is the control signal of the main circuit. The output wave of the main circuit is the sine wave, and the value of the output can be amended automatically. Compared with the traditional equipment, this equipment is smaller and use less energy, but its function is more powerful. It can be programmable. We can take it more expediently. So, this kind of equipment can be used widely in the future.


2018 ◽  
Vol 199 (4S) ◽  
Author(s):  
Hayato Yamamoto ◽  
Shingo Hatakeyama ◽  
Atsushi Imai ◽  
Hirotake Kodama ◽  
Ayumu Kusaka ◽  
...  

1971 ◽  
Vol 4 (2) ◽  
pp. 86
Author(s):  
Paladugu V. Rao ◽  
B. Joseph Szerenyi

<p class="p1">An <span class="s1">on-line </span>circulation <span class="s1">system </span>developed at a relatively small university library demonstrates that <span class="s1">academic </span>libraries <span class="s1">with </span>limit<span class="s2">e</span>d funds <span class="s1">can </span>develop automated systems utilizing parent institution's <span class="s1">computer </span>facilities in a time-sharing mode. In operation <span class="s1">since </span>September 1968, using an IBM 360/50 <span class="s4">computer and associated </span>peripheral equipment, it <span class="s4">provides </span>control over all stack books.</p>


2020 ◽  
Vol 134 (10) ◽  
pp. 895-898
Author(s):  
S V Bandaru ◽  
A M Augustine ◽  
A Lepcha ◽  
S Sebastian ◽  
M Gowri ◽  
...  

AbstractObjectiveThe current circumstances of the coronavirus disease 2019 pandemic necessitate the use of personal protective equipment in hospitals. N95 masks and face shields are being used as personal protective equipment to protect from aerosol-related spread of infection. Personal protective equipment, however, hampers communication. This study aimed to assess the effect of using an N95 mask and face shield on speech perception among healthcare workers with normal hearing.MethodsTwenty healthcare workers were recruited for the study. Pure tone audiometry was conducted to ensure normal hearing. Speech reception threshold and speech discrimination score were obtained, first without using personal protective equipment and then repeated with the audiologist wearing an N95 mask and face shield.ResultsA statistically significant increase in speech reception threshold (mean of 12.4 dB) and decrease in speech discrimination score (mean of 7 per cent) was found while using the personal protective equipment.ConclusionUse of personal protective equipment significantly impairs speech perception. Alternate communication strategies should be developed for effective communication.


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