Gap Detection in School-Age Children and Adults: Effects of Inherent Envelope Modulation and the Availability of Cues Across Frequency

Buss, Emily; Hall, Joseph W.; Porter, Heather L.; Grose, John H.

doi:10.1044/2014_jslhr-h-13-0132

Cited by 9 publications

(32 citation statements)

References 45 publications

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“…Although previous studies have not measured gap detection as a function of the bandwidth of LFN, studies using a narrowband (25-Hz-wide) LFN stimulus reported gap detection thresholds that were substantially lower than for random noise (Grose et al, 2008;Buss et al, 2014). This result is in accord with other studies indicating that gap detection performance is limited by inherent fluctuations of the noise, and is also consistent with the concept of modulation masking (e.g., Houtgast, 1989;Glasberg and Moore, 1992;Moore et al, 1993).…”

Section: Introductionsupporting

confidence: 81%

The effect of noise fluctuation and spectral bandwidth on gap detection

Hall

Buss

Ozmeral

et al. 2016

The Journal of the Acoustical Society of America

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Experiment 1 investigated gap detection for random and low-fluctuation noise (LFN) markers as a function of bandwidth (25-1600 Hz), level [40 or 75 dB sound pressure level (SPL)], and center frequency (500-4000 Hz). Gap thresholds for random noise improved as bandwidth increased from 25 to 1600 Hz, but there were only minor effects related to center frequency and level. For narrow bandwidths, thresholds were lower for LFN than random markers; this difference extended to higher bandwidths at the higher center frequencies and was particularly large at high stimulus level. Effects of frequency and level were broadly consistent with the idea that peripheral filtering can increase fluctuation in the encoded LFN stimulus. Experiment 2 tested gap detection for 200-Hzwide noise bands centered on 2000 Hz, using high-pass maskers to examine spread of excitation effects. Such effects were absent or minor for random noise markers and the 40-dB-SPL LFN markers. In contrast, some high-pass maskers substantially worsened performance for the 75-dB-SPL LFN markers. These results were consistent with an interpretation that relatively acute gap detection for the high-level LFN gap markers resulted from spread of excitation to higherfrequency auditory filters where the magnitude and phase characteristics of the LFN stimuli are better preserved.

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Section: Introductionsupporting

confidence: 81%

The effect of noise fluctuation and spectral bandwidth on gap detection

Hall

Buss

Ozmeral

et al. 2016

The Journal of the Acoustical Society of America

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“…However, previous studies have shown that behavioral GDTs measured in school-aged children with normal hearing for broadband noise range from 5-10 ms (Buss et al, 2014; Amaral & Collella-Santos, 2010; Shinn et al, 2009; Trehub et al, 1995; Zaidan & Baran, 2013) and subjects with ANSD had longer GDTs than normal-hearing listeners (Michalewski et al, 2005; Zeng et a., 1999; 2005). In addition, only one subject (S15) among these eight subjects showed an objective GDT of 10 ms.…”

Section: Discussionmentioning

confidence: 92%

Acoustically Evoked Auditory Change Complex in Children With Auditory Neuropathy Spectrum Disorder

Grose

Teagle

et al. 2015

Ear &Amp; Hearing

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Objective: The overall aim of the study was to evaluate the feasibility of using electrophysiological measures of the auditory change complex (ACC) to identify candidates for cochlear implantation in children with auditory neuropathy spectrum disorder (ANSD). In order to achieve this overall aim, this study 1) assessed the feasibility of measuring the ACC evoked by temporal gaps in a group of children with ANSD across a wide age range; and 2) investigated the association between gap detection thresholds (GDTs) measured by the ACC recordings and open-set speech-perception performance in these subjects. Design: Nineteen children with bilateral ANSD ranging in age between 1.9 to 14.9 yrs (mean: 7.8 yrs) participated in this study. Electrophysiological recordings of the auditory event-related potential (ERP), including the onset ERP response and the ACC, were completed in all subjects and open-set speech perception was evaluated for a subgroup of sixteen subjects. For the ERP recordings, the stimulus was a Gaussian noise presented through ER-3A insert earphones to the test ear. Two stimulation conditions were used. In the “control condition,” the stimulus was an 800-ms Gaussian noise. In the “gapped condition”, the stimuli were two noise segments, each being 400 ms in duration, separated by one of five gaps (i.e. 5, 10, 20, 50, or 100 ms). The inter-stimulation interval was 1200 ms. The aided open-set speech perception ability was assessed using the Phonetically Balanced Kindergarten (PBK) word lists presented at 60 dB SPL using recorded testing material in a sound booth. For speech perception tests, subjects wore their hearing aids at the settings recommended by their clinical audiologists. For a subgroup of five subjects, psychophysical gap detection thresholds for the Gaussian noise were also assessed using a three-interval, three-alternative forced-choice procedure. Results: Responses evoked by the onset of the Gaussian noise (i.e. onset responses) were recorded in all stimulation conditions from all subjects tested in this study. The presence/absence, peak latency and amplitude, and response width of the onset response did not correlate with aided PBK word scores. The objective GDTs measured with the ACC recordings from seventeen subjects ranged from 10 to 100 ms. The ACC was not recorded from two subjects for any gap durations tested in this study. There was a robust negative correlation between objective GDTs and aided PBK word scores. In general, subjects with prolonged objective GDTs showed low aided PBK word scores. GDTs measured using electrophysiological recordings of the ACC correlated well with those measured using psychophysical procedures in four of five subjects who were evaluated using both procedures. Conclusions: The clinical application of the onset response in predicting open-set speech-perception ability is relatively limited in children with ANSD. The ACC recordings can be used to objectively evaluate temporal resolution abilities in children with ANSD having no severe comorbidities, a...

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“…Although gap detection is widely used as a measure of temporal resolution, thresholds of adult listeners depend on the spectral and temporal characteristics of the stimuli bounding the gap (e.g., Eddins, Hall, & Grose, 1992;Grose, Buss, & Hall, 2008). A recent study by Buss, Hall, Porter, and Grose (2014) argued that the development of adultlike gap detection may, likewise, depend critically on spectral and temporal features of the stimulus. The ability to detect a gap in a spectrally wide stimulus was argued to mature earlier in childhood than the ability to detect a gap in low-fluctuation narrowband noise.…”

mentioning

confidence: 99%

“…One motivation for evaluating these stimulus features is that signal detection in quiet matures later in childhood for brief low-frequency stimuli than for high-frequency or long-duration stimuli (He, Buss, & Hall, 2010;Trehub, Schneider, Morrongiello, & Thorpe, 1988). Another motivation for evaluating frequency and ramp duration is that effects related to these features have bearing on the interpretation of gap detection data reported by Buss et al (2014). Buss et al (2014) evaluated gap detection in schoolage children and adults for a band of Gaussian noise that was either 25 or 1000 Hz wide.…”

mentioning

confidence: 99%

“…Another motivation for evaluating frequency and ramp duration is that effects related to these features have bearing on the interpretation of gap detection data reported by Buss et al (2014). Buss et al (2014) evaluated gap detection in schoolage children and adults for a band of Gaussian noise that was either 25 or 1000 Hz wide. In two additional conditions, a 25-Hz-wide band of noise was modified to either minimize or accentuate envelope modulation; these noises were described as low-fluctuation and staccato noise, respectively.…”

mentioning

confidence: 99%

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