Objective: The purpose of this study was to describe normative aspects of wideband acoustic immittance (WAI) measures obtained from healthy White neonates. Method: In this cross-sectional study, wideband absorbance (WBA), admittance magnitude, and admittance phase were measured under ambient pressure condition in 326 ears from 203 neonates (M age…

This research study aimed to explore the experiences of caregivers of children through the early hearing detection and intervention (EHDI) process in the public health care sector in South Africa. A qualitative research design was employed. Semistructured interviews were conducted with 8 caregivers from 3 different levels of service delivery in…

Purpose: The aim of this study was to develop a risk prediction model for detecting middle ear pathology in 6- to 9-month-old infants using wideband absorbance measures. Method: Two hundred forty-nine infants aged 23-39 weeks (Mdn = 28 weeks) participated in the study. Distortion product otoacoustic emissions and high-frequency tympanometry were…

Purpose: The aim of this article was to study the normal longitudinal development of wideband absorbance and admittance measures through infancy. Method: Two hundred one infants who passed the newborn hearing screen (automated auditory brainstem response) were tested at birth and then followed up at approximately 6, 12, and 18 months of age. Most…

In children with a hearing loss who receive cochlear implants (CIs) under the age of 2, regular assessments are conducted to monitor auditory and linguistic progress. However, the collection of authentic, representative, and reliable expressive language data on young children with CIs remains a challenge. The purpose of the study was to determine…

Three experiments investigated perception of audio-visual (A-V) speech synchrony in 4- to 10-month-old infants. Experiments 1 and 2 used a convergent-operations approach by habituating infants to an audiovisually synchronous syllable (Experiment 1) and then testing for detection of increasing degrees of A-V asynchrony (366, 500, and 666 ms) or by…

Infants were tested for their discrimination of changes in the melodic contour (direction of successive pitch changes) of brief melodies in the context of discernible variations in key or interval size. (PCB)

Assessed auditory temporal acuity among infants of 3, 6, and 12 months of age and adults. Gap detection thresholds were quite poor in infants. Effects of restricting the range of frequencies available for detecting gaps were qualitatively similar for infants and adults. (GLR)

Determines whether an averaged evoked potential technique using a random-v-repetitive presentation mode could be used to study infant auditory discrimination. Results showed a main effect of presentation mode with shorter latency for random v repetitive. The shortest onset latency was for random stimulus at the fast rate. (Author/DB)

Three experiments investigated four-month-old infants' capacity to perceive bimodally specified events by detecting the temporal synchrony of sound bursts with the visable impacts of surfaces. (Author/SS)

One experiment determined that the minimum angle at which infants can discriminate 2 sound presentations decreases substantially toward 48 weeks of age. In 3 succeeding experiments, infants aged 16, 20, and 28 weeks were able to discriminate sounds presented to each ear between 50 and 75 microseconds apart. (BC)

Results indicated no significant differences between conditioning procedures in regard to obtained MRLs (minimum response levels) number of stimulus presentations required to establish MRL (discounting conditioning trials), and number of false-positive responses observed during control trial for 60 premature infants at one or two years of age.…

Hearing sensitivity was examined prospectively in 114 young children as a function of otitis media with effusion (OEM)status in years 1, 2, and 3. Results indicated that children classified as bilaterally OME positive in years 1, 2, and 3 had significantly poorer hearing than children classified as bilaterally OME free at these periods. (Contains…

Black (n=63) and White (n=74) infants, aged 6-13 months, were screened by tympanometry for middle-ear dysfunction. More White infants than Black failed initial screening. Retest of initial failures after a 6-week interval showed an overall reduction in failure rates, but the significant racial effect was still obtained. (Author/JDD)

Evaluates the discrimination of signal and silence duration in six-month-old infants, children aged 5 1/2 years, and adults. Results show that infants discriminated duration changes of 20 milliseconds or greater, children discriminated 15 milliseconds, and adults as few as 10 ms. Findings are consistent with other research in revealing age-related…