Decision Criteria for Pure-Tone Detection Used by Two Age Groups of Normal-Hearing and Hearing-Impaired Listeners

1991 ◽  
Vol 46 (2) ◽  
pp. P67-P70 ◽  
Author(s):  
L. Marshall
Keyword(s):  
Pure Tone ◽  
Age Groups ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Decision Criteria ◽  
Two Age Groups ◽  
Tone Detection

scholarly journals Communicative indicators, motor and cognitive development of hearing-impaired children

2016 ◽  
Vol 26 (1) ◽  
pp. 54
Author(s):  
Érica Endo Amemiya ◽  
Alexandra Dezani Soares ◽  
Brasilia Maria Chiari
Keyword(s):  
Child Development ◽  
Standardized Tests ◽  
Age Groups ◽  
Hearing Impaired ◽  
Typical Development ◽  
Impaired Child ◽  
Hearing Children ◽  
Impaired Children ◽  
Two Age Groups ◽  
Hearing Impaired Children

Introduction: For the assessment of child development in the deaf is effective protocols are needed for this population, as in Brazil, standardized tests for these children are still scarce 4.5. Thus, emphasis is placed on studying child development in deaf so that therapeutic and educational approaches are contemplated in accordance with the needs of each child. Objective:  Analyze the performance of children with hearing defi cit in different areas: Communications-Issue, Communication-reception, aspects Motors and Cognitive Aspects of Language. Methods: We have carried out a comparative study in an institutional clinic with 109 children, divided into 60 hearing individuals with typical development and 49 with hearing loss, severe to profound. The performance index was calculated for each child in these four domains. The index was analysed according to the equation: (number of responses in each area / number of assessed behaviours) x100. Results: In all age groups, hearing-impaired children had a smaller performance when compared to hearing children in the Communication – Emission domain. The Communication-Reception domain showed signifi cant differences (p < 0.05) from the 12-to-23-months to the 60-to-71-months age groups. The Cognitive Aspects domain demonstrated a signifi cant difference (p < 0.01) between hearing-impaired and hearing children aged 24 to 35 months and onwards. Motor Aspects only had a signifi cant difference (p < 0.01) in the last two age groups, 48-59 months and 60-71 months. The signifi cance level was 5%. Conclusion:  In all age groups, hearing-impaired children’s performance was worse when compared to hearing children. The intervention made by health professionals ought to take place as soon as possible in order to develop the cognitive, motor and language skills of the hearing-impaired child.

scholarly journals Speech audiometry test in modern Greek language with sentence lists for hearing impaired children

2017 ◽  
Author(s):  
Κωνσταντίνα Κολούτσου
Keyword(s):  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Speech Audiometry ◽  
Greek Language ◽  
Modern Greek ◽  
Speech Reception ◽  
Impaired Children ◽  
Hearing Impaired Children

Σκοπός: Σκοπός αυτής της μελέτης ήταν η ανάπτυξη της Δοκιμασίας -Τέστ, το G-SEBSAT τέστ, στην ακουστική ομιλία βασισμένο σε προτάσεις για παιδιά με προβλήματα ακοής.Μέθοδοι: Προσλήφθηκαν εβδομήντα έξι παιδιά κατόπιν έγκρισης από την τοπική επιτροπή δεοντολογίας και κατόπιν ενημέρωσης από τους γονείς τους. Η συλλογή του λεξιλογίου βασίστηκε στην προβολή εικόνων που επιλέχθηκαν από δημοφιλείς αναγνωστικές ύλες στα ελληνικά στα παιδιά με προβλήματα ακοής (Hearing Impaired-ΗΙ). Εκπονήθηκε μια γραμματική ανάλυση περιεχομένου για να προσδιοριστούν οι μέσες συντακτικές και μορφολογικές δομές των φράσεων που χρησιμοποιούνται από τα παιδιά της ΗΙ ομάδας . Δέκα λίστες που σχετίζονται με αντοίστοιχες εικόνες, δημιουργήθηκαν με βάση το λεξιλόγιο και τη γραμματική ανάλυση και καταγράφηκαν από έναν άνδρα ομιλητή με μητρική του γλώσσα την σύγχρονη ελληνική. Οι δέκα λίστες παρουσιάστηκαν σε παιδιά με κανονική ακοή (Normal Hearing-NH) και σε παιδιά με HI, ενώ και στις δύο ομάδες καταγράφηκε το μέσο όριο απόκρισης ομιλίας (Speech Reception Threshold-SRT) καθώς και η κλίση της καμπύλης SRT στο επίπεδο SRT των 50% σωστών αποκρίσεων (S50). Οι κατάλογοι καταγγελιών επικυρώθηκαν σε σχέση με τη μεταβλητότητα της δυσκολίας τους σε κάθε ομάδα, καθώς και με τη μεταβλητότητα δοκιμής-επανεξέτασης των αντίστοιχων βαθμολογιών SRT.Αποτελέσματα: Το μέσο όριο απόκρισης ομιλίας (SRT) σε όλες τις λίστες για παιδιά με ΗΙ ήταν 65,27 dB και η κλίση της καμπύλης SRT στο επίπεδο SRT των 50% των σωστών αποκρίσεων ήταν 3,11% / dB. Τα αντίστοιχα αποτελέσματα σε όλους τους καταλόγους για τα παιδιά με NH ήταν 17,66 dB και 9,7% / dB αντίστοιχα. Τα SRT των παιδιών με ΗΙ συσχετίστηκαν έντονα θετικά, με στατιστικά σημαντικό τρόπο με την μέτρηση ακουστικού τόνου (Pure Tone Audiometry-ΡΤΑ) τόσο στις δοκιμασίες όσο και στις δοκιμαστικές συνεδρίες (δοκιμασία: r = 0.750, Ρ <0.0005, επανέλεγχος: r = 0.753, Ρ <0.0005). Η συσχέτιση Spearman των βαθμολογιών των τιμών SRT και των τιμών κλίσης ήταν 0.998 και 0.997 αντίστοιχα για το ΗΙ και 0.939 και 0.88 για την ομάδα με ΝΗ, υποδεικνύοντας πολύ χαμηλή μεταβλητότητα σε όλες τις συνεδρίες δοκιμής και επανεξέτασης. Επιπλέον, η ανάλυση της διακύμανσης (ANOVA) του μέσου SRT στα παιδιά με NH και τα υπολείμματα SRT στην ομάδα με HI έδειξε ότι οι διαφορετικές προτάσεις ήταν της ίδιας δυσκολίας σε κάθε ομάδα. ((F (9,81) = 0,401, ρ = 0,930 και (F (9,93) = 2,241, ρ = 0,025 αντίστοιχα).Συμπεράσματα: Για πρώτη φορά δημιουργήθηκε στην ελληνική γλώσσα επικυρωμένη δοκιμή ομιλίας ακουστικής φωνής. Οι τιμές SRT και S50 και για τα παιδιά με NH και με HI είναι συγκρίσιμες με παρόμοιες δοκιμές που αναπτύχθηκαν σε άλλες γλώσσες.

The Effects of Early Auditory Deprivation on Temporal Perceptions: A Comparison of Hearing and Hearing-Impaired Children on Temporal Pattern Matching Tasks

1979 ◽  
Vol 22 (4) ◽  
pp. 731-746 ◽  
Author(s):  
Linda J. Anooshian ◽  
John M. Bryan
Keyword(s):  
Pattern Matching ◽  
Temporal Pattern ◽  
Age Groups ◽  
Frame Of Reference ◽  
Hearing Impaired ◽  
Auditory Deprivation ◽  
Hearing Children ◽  
Impaired Children ◽  
Two Age Groups ◽  
Hearing Impaired Children

This study was designed to test the hypothesis that hearing children, but not children deprived of early auditory experiences, would use an auditory frame of reference, or auditory encoding, for temporal perceptions. Two age groups (8 and 11 years of age) of hearing and hearing-impaired children were tested in two sessions; tasks required each child to decide whether two temporal patterns (sequences of lights, sounds or both) were the same or different. Specific trial-types were designed to reveal different patterns of performances (across trial-types) for children who differed in terms of whether an auditory frame of reference was used. The results suggested that all children used similar temporal frames of reference, but that hearing-impaired children demonstrated developmental lags.

Reliability in Hearing Threshold Prediction in Normal-Hearing and Hearing-Impaired Participants Using Mixed Multiple ASSR

2015 ◽  
Vol 26 (03) ◽  
pp. 299-310 ◽  
Author(s):  
Kjell-Erik Israelsson ◽  
Renata Bogo ◽  
Erik Berninger
Keyword(s):  
Growth Rate ◽  
Prediction Error ◽  
Pure Tone ◽  
Hearing Threshold ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Interquartile Range ◽  
Time Averaging ◽  
Intersubject Variability ◽  
Long Time

Background and Purpose: The rapidly evolving field of hearing aid fitting in infants requires rapid, objective, and highly reliable methods for diagnosing hearing impairment. The aim was to determine test-retest reliability in hearing thresholds predicted by multiple auditory steady-state response (ASSRthr) among normal-hearing (NH) and hearing-impaired (HI) adults, and to study differences between ASSRthr and pure-tone threshold (PTT) as a function of frequency in each participant. ASSR amplitude versus stimulus level was analyzed to study ASSR growth rate in NH and HI participants, especially at ASSRthr. Research Design and Study Sample: Mixed multiple ASSR (100% AM, 20% FM), using long-time averaging at a wide range of stimulus levels, and PTT were recorded in 10 NH and 14 HI adults. ASSRthr was obtained in 10 dB steps simultaneously in both ears using a test-retest protocol (center frequencies = 500, 1000, 2000, and 4000 Hz; modulation frequencies = 80–96 Hz). The growth rate at ASSRthr was calculated as the slope (nV/dB) of the ASSR amplitudes obtained at, and 10 dB above, ASSRthr. PTT was obtained in both ears in 1 dB steps using a fixed-frequency Békésy technique. All of the NH participants showed PTTs better than 20 dB HL (125–8000 Hz), and mean pure-tone average (PTA; 500–4000 Hz) was 1.8 dB HL. The HI participants exhibited quite symmetrical sensorineural hearing losses, as revealed by a mean interaural PTA difference of 6.5 dB. Their mean PTA in the better ear was 38.7 dB HL. Results: High ASSRthr reproducibility (independent of PTT) was found in both NH and HI participants (test-retest interquartile range = 10 dB). The prediction error was numerically higher in NH participants (f ≥1000 Hz), although only a significant difference existed at 1000 Hz. The median difference between ASSRthr (dB HL) and PTT (dB HL) was approximately 10 dB in the HI group at frequencies of 1000 Hz or greater, and 20 dB at 500 Hz. In general, the prediction error decreased (p < 0.001) with increasing hearing threshold, although large intersubject variability existed. Regression analysis (PTT versus ASSRthr) in HI participants revealed correlation coefficients between 0.72–0.88 (500–4000 Hz) and slopes at approximately 1.0. Large variability in ASSRthr-PTT versus frequency was demonstrated across HI participants (interquartile range approximately 20 dB). The maximum across-frequency difference (ASSRthr-PTT) in an individual participant was 50 dB. HI participants showed overall significantly higher amplitudes and slopes at ASSRthr than did NH participants (p < 0.02). The amplitude-intensity function revealed monotonically increasing ASSRs in NH participants (slope 2 nV/dB), whereas HI participants exhibited heterogeneous and mostly nonmonotonically increasing ASSRs. Conclusions: Long-time averaging of ASSR revealed high ASSRthr reproducibility and systematic decrease in prediction error with increasing hearing threshold, albeit large intersubject variability in prediction error existed. A plausible explanation for the systematic difference in ASSRthr between NH and HI adults might be significantly higher ASSR amplitudes and higher overall growth rates at ASSRthr among HI participants. Across-frequency comparison of PTT and ASSRthr in an individual HI participant demonstrated large variation; thus, ASSR may not be optimal for, e.g., reliable threshold prediction in infants and subsequent fine-tuning of hearing aids.

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