The latest medical research on Audiology

The research magnet gathers the latest research from around the web, based on your specialty area. Below you will find a sample of some of the most recent articles from reputable medical journals about audiology gathered by our medical AI research bot.

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Hearing and Functioning in Everyday Life Questionnaire: Psychometric Evaluation and Revision.

Am J Audiology

The aim of the current study was to explore the construct validity and internal consistency reliability of the International Classification of Functioning, Disability and Health (ICF)-based original English version of the Hearing and Functioning in Everyday Life Questionnaire (HFEQ) and to revise the HFEQ based on the results.

This study used a cross-sectional survey design. The data were collected using an online survey. Adults with self-reported hearing disability (n = 513) from the United States were included. The ICF components of body functions, activity and participation, and environmental factors were tested as the underlying structure of the HFEQ using confirmatory factor analysis and then adjusted by triangulation with previous content validation.

The results of the current study confirmed the ICF components of body functions, activity and participation, and environmental factors as underlying constructs of the HFEQ. However, after triangulation with previous content validation, fine adjustments were made. The revised version of the HFEQ includes two removed items and a fine-tuned factor structure.

The results confirm that the structure of the HFEQ aligns with the ICF, and the overall results indicate that HFEQ has acceptable construct validity and internal consistency.

Utricular Dysfunction and Hearing Impairment Affect Spatial Navigation in Community-dwelling Healthy Adults: Analysis from the Baltimore Longitudinal Study of Aging.

Audiology and Neuro-Otology

Spatial navigation, the ability to move through one's environment, is a complex skill utilized in everyday life. The effects of specific vestibular end-organ deficits and hearing impairments on spatial navigation have received little to no attention. We hypothesized that hearing impairment adversely affects spatial navigation and that bi-modal impairments (vestibular and hearing) further impair navigation ability.

Data from 182 participants in the Baltimore Longitudinal Study of Aging who had interpretable results for the video head impulse test (vHIT), cervical (cVEMP) and ocular (oVEMP) vestibular evoked myogenic potentials, audiometric testing, and the triangle completion test (TCT) were retrospectively analyzed. Multiple linear regression, controlling for age, sex, and cognition, was employed to identify predictors of TCT performance in terms of end-point error, angle deviation, and distance walked.

oVEMP abnormalities were associated with larger end-point error (p=0.008) and larger angle deviation (p=0.002) but were not associated with distance walked (p=0.392). Abnormalities on cVEMP and vHIT were not associated with distance walked (p=0.835, p=0.300), end-point error (p=0.256, p=0.808), or angle deviation (p=0.192, p=0.966). Compared with normal hearing adults, hearing impaired adults walked a shorter distance during the TCT (p=0.049) but had similar end-point error (p=0.302) and angle deviation (p=0.466). There was no interaction between vestibular and hearing function for predicting spatial navigation ability.

In this cohort analysis, utricular dysfunction and hearing impairment were associated with poorer spatial navigation performance. We postulate that hearing impairment negatively affects one's ability to use real-time, intrinsic auditory cues and/or prior experience to guide navigation.

Serum Prestin Level May Increase Following Music Exposure That Induces Temporary Threshold Shifts: A Pilot Study.

Ear and Hearing

To determine if blood prestin level changes after exposure to music at high sound pressure levels, and if this change is associated with temporary threshold shift (TTS) and/or changes in distortion product (DP) amplitude.

Participants were exposed to pop-rock music at 100 dBA for 15 min monaurally through headphones. Pure-tone audiometry, DP amplitude, and blood prestin level were measured before and after exposure.

Fourteen adults (9 women; age range: 20 to 54 years, median age = 31 [Interquartile ratio = 6.75]) with normal hearing were included in the study. Mean prestin level increased shortly after exposure to music, then returned to baseline within 1 week, although this trend was not observed in all participants. All participants presented TTS or a decrease in DP amplitude in at least one frequency after music exposure. There was a statistically significant average threshold elevation at 4 min postexposure. Statistically significant DP amplitude shifts were observed at 4 and 6 kHz, 2 min following exposure. Mean baseline serum prestin level (mean: 140.00 pg/mL, 95% confidence interval (CI): 125.92 to 154.07) progressively increased following music exposure, reaching a maximum at 2 hr (mean: 158.29 pg/mL, 95% CI: 130.42 to 186.66) and returned to preexposure level at 1 week (mean: 139.18 pg/mL, 95% CI: 114.69 to 163.68). However, after correction for multiple comparisons, mean prestin level showed no statistically significant increase from baseline at any timepoint. No correlation between maximum blood prestin level change and average TTS or distortion product otoacoustic emission amplitude shift was found. However, in an exploratory analysis, TTS at 6 kHz (the frequency at which maximum TTS occurred) decreased significantly as baseline blood prestin level increased.

The results suggest that blood prestin level may change after exposure to music at high sound pressure levels, although statistical significance was not reached in this relatively small sample after correction. Baseline serum prestin level may also predict the degree of TTS. These findings thus suggest that the role of baseline serum prestin level as a proxy marker of cochlear susceptibility to intense music exposure should be further explored.

The Validity and Reliability of the Turkish Version of Preschool Hearing Environments and Reflection on Quality of Life Questionnaire.

Am J Audiology

The purpose of this study was to assess preschool children's hearing-related quality of life and to introduce the scale, originally titled "Preschool Hearing Environments and Reflections on Quality of Life Questionnaire" (Preschool HEAR-QL), to the literature through Turkish adaption, validity, and reliability analyses.

Our study included 210 children aged 2-6 years: 110 with hearing loss (56 cochlear implant users and 54 hearing aid users) and 100 with normal hearing. Demographic data were collected and then the Preschool HEAR-QL, which was translated into Turkish, was administered twice at 15-day intervals. Confirmatory factor analysis was used to determine whether the factor structure found in the original scale development study was confirmed in our sample (construct validity). Cronbach's alpha, intraclass correlation scores, and the test-retest method were used to assess the scale's reliability as the findings were analyzed using paired samples t tests.

The children with hearing loss had lower scores than their normal-hearing peers, and the difference was significant in the subdomains of behavior and attention, hearing environments, and communication. The subscale of the Preschool Period Listening Environments and their Reflections on Quality of Life Scale consists of 23 items, and Cronbach's alpha value was found as 0.922 in the first application and 0.926 in the second application (high reliability). In the model established for validity analysis, χ2/df = 2.156, root-mean-square error of approximation = 0.074, standard root-mean-square residual = 0.078, goodness-of-fit index = 0.830, adjusted goodness-of-fit index = 0.789, comparative fit index = 0.895, and Tucker-Lewis index = 0.881 (good model fit). In terms of test-retest reliability, the correlation between the two measurements was 0.837, and there was no statistical difference between the test-retest scores (p = .15).

The Turkish version of the Preschool HEAR-QL scale was proven to be a valid and reliable scale for assessing the hearing-related quality of life of children aged 2-6 years.

https://doi.org/10.23641/asha.25236949.

Reliability and Feasibility of Administering a Child Language Assessment via Telehealth.

Speech Language Path

Despite the speed with which telehealth use advanced during the COVID-19 pandemic, evidence is needed to support the remote delivery of standardized assessments. This study investigated the reliability and feasibility of administering a standardized language assessment administered in real-world telehealth scenarios compared to in-person administration.

A total of 100 children between the ages of 3 and 12 years were administered one of three versions of the Clinical Evaluation of Language Fundamentals (CELF). Children were administered the CELF by the same licensed speech-language pathologists (SLPs) in person and using telehealth, with the order counterbalanced. Means for Core Language standard scores were compared between conditions and among devices. Descriptive statistics summarized the behavior and technology disruptions during administration as well as the results of parent and SLP telehealth perception surveys.

In-person and telehealth mean scores on all three versions of the CELF revealed no systematic differences of one condition under- or overestimating another. The incidence of child behavior disruptions was similar for both test administration conditions. Adaptations compensated for the rare technology disruptions. Despite no significant language score and behavior differences between testing conditions, parents reported they continued to prefer in-person assessments. SLP participants viewed telehealth overall positively but identified conditions in which they continued to prefer in-person delivery.

This study provides evidence of minimal or no differences in scores and behavioral or technological disruptions between remote and in-person administration of the CELF core language assessments. SLP and parent participants' attitudes toward remote delivery of standardized tests appear to be evolving in a positive direction compared to previous studies.

https://doi.org/10.23641/asha.25292752.

Vocal Range Variations Elicited With a Standard Mandarin Reading Passage in Individuals With Voice Disorders.

Speech Language Path

This study examined whether the "Three Bears Passage" (TB), a standard Mandarin reading passage, could elicit significant vocal range variations in individuals with voice disorders. Relative sensitivity of TB versus another existing standard reading passage, "Passage in Mandarin" (PM), for differentiating between individuals with and without voice disorders was also evaluated.

Forty-two individuals with normal voice and 30 individuals with voice disorders participated in the study. Maximum fundamental frequency (f0), minimum f0, mean f0, f0 range, maximum vocal intensity, minimum intensity, mean intensity, and intensity range of all participants reading aloud the two passages were measured with Praat to construct speech range profiles (SRPs).

Significantly larger vocal range was found for TB than for PM in individuals with voice disorders, including significantly higher maximum f0, mean f0, maximum intensity, mean intensity, and significantly larger f0 range and intensity range. Significantly more limited vocal range was observed in individuals with voice disorders than those without, with more obviously restricted SRPs while reading aloud TB compared to PM. Receiver operating characteristic analysis suggested that TB was more sensitive than PM in distinguishing between individuals with and without voice disorders.

Our findings supported the potential of TB as a standard clinical assessment tool for evaluating pathological changes in vocal range. Future studies should explore if therapeutic approaches based on the passage or variations of it could be developed for overcoming functional limitations and restrictions in vocal range for specific voice disorders.

Perceptions of Hearing Health Care: A Qualitative Analysis of Satisfied and Dissatisfied Online Reviews.

Am J Audiology

The aim of this study was to examine the hearing health care experience of satisfied and dissatisfied consumers as reported on Google reviews.

Using qualitative thematic analysis, open-text responses from Google regarding hearing health care clinics across 40 U.S. cities were examined. During the original search, 13,168 reviews were identified. Purposive sampling led to a total of 8,420 five-star reviews and 321 one-star reviews. The sample consisted of 500 five-star (satisfied) and 234 one-star (dissatisfied) reviews, describing experiences with audiology clinics, excluding reviews related to ear, nose, and throat services; other medical specialties; and those not relevant to hearing health care.

Satisfied and dissatisfied consumer reviews yielded nuanced dimensions of the hearing health care consumer experience, which were grouped into distinct domains, themes, and subthemes. Six and seven domains were identified from the satisfied and dissatisfied reviews, encompassing 23 and 26 themes, respectively. The overall experience domain revealed emotions ranging from contentment and gratitude to dissatisfaction and waning loyalty. The clinical outcomes domain highlights the pivotal contribution of well-being and hearing outcomes to the consumer experience, while the standard of care domain underscores shared expectations for punctuality, person-centered care, and efficient communication. Facility quality, professional competence, and inclusive care were also highlighted across positive and negative reviews.

Findings indicate dimensions of satisfied and dissatisfied hearing health care consumer experiences, identifying areas for potential service refinement. These consumer experiences inform person-centric service delivery in hearing health care.

Establishment of self-reported hearing cut-off value on the Chinese version of short form of speech, spatial and qualities of hearing scale (SSQ12).

International Journal of Epidemiology

The aim of this study was to evaluate the efficacy of the Chinese version of Speech, Spatial and Qualities of Hearing Scale (C-SSQ12) in the Chinese Mandarin-speaking population and to determine its screening cut-off value by comparing measured pure-tone average (PTA), the Hearing Handicap Inventory for the Elderly-Screening Version (HHIE-S) scores and C-SSQ12 scores.

All participants completed the C-SSQ12 questionnaire and underwent the pure-tone audiometry. Older subjects aged ≧ 60 years completed the HHIE-S questionnaire. The optimal cut-off value for the C-SSQ12 as a hearing screening tool was calculated by comparing different cut-offs and hearing thresholds.

A total of 300 subjects were recruited.

There was a negative correlation between C-SSQ12 scores and HHIE-S scores (r = -0.749). C-SSQ12 scores were negatively correlated with PTA (r = -0.507; r = -0.542). The best cut-off value for the C-SSQ12 was 6.0, with a sensitivity of 78.2%, specificity of 80.3%, positive predictive value of 63.7% and negative predictive value of 97.0% (PTA > 40dBHL for bilateral ears).

Compared to mild hearing loss, the C-SSQ12 is a reliable and validated hearing screening tool with increased sensitivity for detecting moderate-to-severe hearing loss.

The Acquisition of Static and Dynamic Intervention Skills by Graduate Speech-Language Pathology Students.

Speech Language Path

Speech-language pathology programs use simulated learning experiences (SLEs) to teach graduate student clinicians about fidelity to therapeutic interventions, including static skills (clinical actions that are delivered in a prespecified way regardless of the client's behavior) and dynamic skills (contingent responses formulated in response to a client's behavior). The purpose of this study was to explore student learning of static and dynamic skills throughout SLEs and live clinical practice.

Thirty-three speech-language pathology graduate students participated in this study. Students were first trained to deliver an intervention before having their treatment fidelity measured at three time points: an initial SLE, actual clinical practice, and a final SLE. Treatment fidelity was first summarized using an overall accuracy score and then separated by static and dynamic skills. We hypothesized that (a) overall accuracy would increase from the initial simulation to treatment but remain steady from treatment to the final simulation and that (b) students would acquire dynamic skills more slowly than static skills.

In line with our hypotheses, students' overall accuracy improved over time. Although accuracy for static skills was mostly established after the first simulation, dynamic skills remained less accurate, with a slower acquisition timeline.

These results demonstrate that SLEs are efficacious in teaching students the clinical skills needed for actual clinical practice. Furthermore, we show that dynamic skills are more difficult for students to learn and implement than static skills, which suggests the need for greater attention to dynamic skill acquisition during clinical education.

Parent implementation of a treatment for late talkers based on cross-situational statistical learning principles: Treatment fidelity and acceptability.

International Journal of Epidemiology

Early intervention based on principles of cross-situational statistical learning (CSSL) for late-talking children has shown promise. This study explored whether parents could be trained to deliver this intervention protocol with fidelity and if they found the intervention to be acceptable.

Mothers of four English-speaking children aged 18-30 months who scored <10th centile for expressive vocabulary were recruited to an 8-week group training program. Parents were taught principles of CSSL and asked to perform 16 home treatment sessions (30 minutes each) in total, providing auditory bombardment of target words in full sentences at high dose number and syntactic variability, using a range of physical exemplars. Home diaries and two videotaped sessions measured treatment fidelity. Pre- and post-treatment questionnaires measured acceptability.

One parent discontinued the study after the second group training session. Three parents completed 15/16 group training sessions and reported completing 87% of home sessions. Two parents demonstrated implementing the intervention as per the target dose number by the first fidelity session (Weeks 2/3), and the third parent was very close to meeting target dose number by the second fidelity session (Weeks 7/8).

Parents can be trained to deliver an intervention based on cross-situational statistical learning principles.

Synchronizing Automatic Gain Control in Bilateral Cochlear Implants Mitigates Dynamic Localization Deficits Introduced by Independent Bilateral Compression.

Ear and Hearing

The independence of left and right automatic gain controls (AGCs) used in cochlear implants can distort interaural level differences and thereby compromise dynamic sound source localization. We assessed the degree to which synchronizing left and right AGCs mitigates those difficulties as indicated by listeners' ability to use the changes in interaural level differences that come with head movements to avoid front-back reversals (FBRs).

Broadband noise stimuli were presented from one of six equally spaced loudspeakers surrounding the listener. Sound source identification was tested for stimuli presented at 70 dBA (above AGC threshold) for 10 bilateral cochlear implant patients, under conditions where (1) patients remained stationary and (2) free head movements within ±30° were encouraged. These conditions were repeated for both synchronized and independent AGCs. The same conditions were run at 50 dBA, below the AGC threshold, to assess listeners' baseline performance when AGCs were not engaged. In this way, the expected high variability in listener performance could be separated from effects of independent AGCs to reveal the degree to which synchronizing AGCs could restore localization performance to what it was without AGC compression.

The mean rate of FBRs was higher for sound stimuli presented at 70 dBA with independent AGCs, both with and without head movements, than at 50 dBA, suggesting that when AGCs were independently engaged they contributed to poorer front-back localization. When listeners remained stationary, synchronizing AGCs did not significantly reduce the rate of FBRs. When AGCs were independent at 70 dBA, head movements did not have a significant effect on the rate of FBRs. Head movements did have a significant group effect on the rate of FBRs at 50 dBA when AGCs were not engaged and at 70 dBA when AGCs were synchronized. Synchronization of AGCs, together with head movements, reduced the rate of FBRs to approximately what it was in the 50-dBA baseline condition. Synchronizing AGCs also had a significant group effect on listeners' overall percent correct localization.

Synchronizing AGCs allowed for listeners to mitigate front-back confusions introduced by unsynchronized AGCs when head motion was permitted, returning individual listener performance to roughly what it was in the 50-dBA baseline condition when AGCs were not engaged. Synchronization of AGCs did not overcome localization deficiencies which were observed when AGCs were not engaged, and which are therefore unrelated to AGC compression.

The Directional Effects of Marker Frequencies on Across-Channel Temporal Gap-Detection Tasks: An Experimental Study.

Audiology and Neuro-Otology

Gap detection tests are crucial clinical tools for identifying auditory processing disorders that result from abnormalities in the central auditory nervous system. These tests assess the ability to resolve temporal information in sounds, which aids in the diagnosis of auditory temporal processing issues. This study explores the directional effects of marker frequencies on gap detection tasks with respect to the conditions of long and short frequency disparity (separation).

We measured the gap detection thresholds (GDTs) using four across-channel narrowband noise conditions (1-2, 2-1, 1-4, and 4-1 kHz). A within-subject study design involved 29 healthy individuals with normal hearing. Stimuli were presented monaurally using headphones routed via a calibrated audiometer.

The condition with long frequency disparity and a low leading frequency (1-4 kHz) exhibited higher GDTs compared to the other across-channel conditions. However, we did not observe this effect in the other condition with long frequency disparity and a high leading frequency (4-1 kHz), which did not show significant differences from the two conditions with short frequency disparity.

The study findings suggest that the combined effects of the spectral characteristics of the gap markers, including frequency disparity and order of presentation, influence the temporal resolution ability of auditory gap detection. Clinicians evaluating a patient suspected to have central auditory disorders should recognize that the across-channel GDTs may not consistently increase as the frequency separation between the markers increases.