Binaural Fusion, Masking Level Differences, and Auditory Brain Stem Responses in Children with Language-Learning Disabilities

Roush, Jackson; Tait, Charles A.

doi:10.1097/00003446-198401000-00008

Cited by 30 publications

(10 citation statements)

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“…Detection thresholds in diotic (N 0 S 0 ) and dichotic conditions have been measured in adults and children. Variation with age in the children group was neither analyzed by Sweetow and Reddell nor was it analyzed in the study of Roush and Tait (1984), who obtained a mean BMLD of 12.2 dB for a 500 Hz sinusoid in a narrowband noise with 6-to 12-yr-old children. The difference in threshold between the N 0 S 0 and N 0 S or N 0 S conditions is called the BMLD.…”

Section: Introductionmentioning

confidence: 99%

Sound Localization, Sound Lateralization, and Binaural Masking Level Differences in Young Children with Normal Hearing

et al. 2009

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The results of this study show that the modified procedures are suitable for testing children from the age of 4 to 5 yr. Furthermore, it seems that binaural hearing capacities of the 5-yr-olds are similar to those of adults. Several observations led to the hypothesis that the observed age differences between 4-yr-olds and older subjects on localization and BMLD or between those 4- to 9-yr old and adults on lateralization, were attributable to both a development in binaural hearing and to nonauditory factors, such as task comprehension, attention, and testing conditions. It is possible that the developmental process is more obvious and prolonged in other aspects of binaural hearing, which require more dynamic or more central processing.

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Section: Introductionmentioning

confidence: 99%

Sound Localization, Sound Lateralization, and Binaural Masking Level Differences in Young Children with Normal Hearing

et al. 2009

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“…Although the majority of work with the MLD has focused on adults, there are several studies that have exaIl}ined the MLD in children. Roush and Tait (1984) reported 10-to 14 dB MLDs for a group of 6 to 12 year old children with no apparent effect of age. Nozza (1987) observed MLDs in infants (6 to 11 months) were 5.6 dB or about half the size of the MLD for a control group of young adult listeners.…”

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confidence: 95%

Development of a 500-Hz Masking-Level Difference Protocol for Clinic Use

Wilson

Moncrieff²,

Townsend³

et al. 2003

J Am Acad Audiol

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The purpose of this series of experiments was to develop a simple, 500-Hz masking-level difference (MLD) protocol that could be implemented easily in the clinic to assess auditory perceptual abilities using an audio compact disc. Five, 300-ms tones with 250-ms intertone intervals were embedded in 3-s bursts of 200-800 Hz noise presented at 42.2-dB pressure-spectrum level with 4-5 s interstimulus intervals. The homophasic and antiphasic conditions were interleaved with the signal-to-noise ratios decreasing in 2-dB steps. A single-interval, "yes/no" response task was used. Three experiments were performed on 24-28 listeners with normal hearing. The mean SoNo thresholds (58.1- to 59.5-dB SPL) and the mean SpiNo thresholds (45.1- to 46.0-dB SPL) produced approximately 13-dB MLDs. Experiment 3 included a SoNpi condition that had a mean threshold of 48.8-dB SPL and a 10.0-dB MLD. The mean test, retest of the SoNo and SpiNo thresholds on 15 listeners was < 0.5 dB. Over the three experiments, 95% of the listeners had SpiNo MLDs that were > or = 10 dB.

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“…There have been a number of studies investigating the ability of children with normal hearing and a history of chronic, recurrent otitis media to use the advantages provided by their binaural system (Hall & Grose, 1993;Moore, Hutchings, & Meyer, 1991;Pillsbury, Grose, & Hall, 1991;Roush & Tait, 1984). However, these studies have been confined to simple binaural detection (masking-level difference') tasks and have not included tests of complex binaural processing such as localization.…”

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A Test of Virtual Auditory Localization

Besing

Koehnke

1995

Ear and Hearing

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Objective: The purpose of this study was to evaluate a test of virtual auditory localization including assessment of its ease of administration and its sensitivity to differences in binaural performance in children and adults. This test eliminates many potential problems inherent in any free-field localization test such as calibration problems, problems replicating source and listener locations, and issues associated with head movements.Design: Binaural performance was measured using the virtual localization test and a simple binaural detection task, the masking-level difference (MID), for three groups of subjects: adults, children with a negative history of otitis media, and children with a positive history of otitis media. There were five subjects in each group. The adults were all student volunteers; the children were recruited first and subsequently placed into groups based on their medical histories obtained from their physicians and parental reports. Results: Results indicate that this test of virtual auditory localization is useful for measuring binaural performance in children and adults and is sensitive to differences in binaural processing. Performance of the adults and children with a negative history of otitis media was comparable on both of the binaural tests, and on the binaural detection task, was similar to that reported in the literature for normal-hearing listeners; but the children with a positive history of otitis media performed more poorly on both tests.Conclusions: The results of this study indicate that the virtual localization test described here is easy to administer to children and adults. The signal processing techniques used in this virtual auditory localization test lend themselves to straightforward comparisons across different laboratories and clinics and make this test a potentially useful clinical tool. The development of such a clinical test is currently under study. (Ear & Hearing 1995;16;220-229) This paper describes a new procedure for measuring localization in a virtual auditory environment and presents some initial results obtained using this procedure. Specifically, this study was designed to 1) evaluate a new test of virtual auditory localization, 2) compare performance on

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Binaural Fusion, Masking Level Differences, and Auditory Brain Stem Responses in Children with Language-Learning Disabilities

Cited by 30 publications

References 0 publications

Sound Localization, Sound Lateralization, and Binaural Masking Level Differences in Young Children with Normal Hearing

Sound Localization, Sound Lateralization, and Binaural Masking Level Differences in Young Children with Normal Hearing

Development of a 500-Hz Masking-Level Difference Protocol for Clinic Use

A Test of Virtual Auditory Localization

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