Verification of a Mobile Psychoacoustic Test System

Many hearing difficulties can be explained as a loss of audibility, a problem easily detected and treated using standard audiological procedures. Yet, hearing can be much poorer (or more impaired) than audibility predicts because of deficits in the suprathreshold mechanisms that encode the rapidly changing, spectral, temporal, and binaural aspects of the sound. The ability to evaluate these mechanisms requires well-defined stimuli and strict adherence to rigorous psychometric principles. This project reports on the comparison between a laboratory-based and a mobile system’s results for psychoacoustic assessment in adult listeners with normal hearing. A description of both systems employed is provided. Psychoacoustic tests include frequency discrimination, amplitude modulation detection, binaural encoding, and temporal gap detection. Results reported by the mobile system were not significantly different from those collected with the laboratory-based system for most of the tests and were consistent with those reported in the literature. The mobile system has the potential to be a feasible option for the assessment of suprathreshold auditory encoding abilities.

Fluid deafness: earwax and hardness of hearing in early modern Europe

This article discusses hearing disability in early modern Europe, focusing on medical ideas to demonstrate a profound shift in thinking about deafness over the course of the eighteenth century. Scholars have previously described changes in the social status of the deaf in the eighteenth century, pointing at clerics’ sympathy for the deaf and philosophers’ fascination with gestures as the origin of language, but there is remarkably little scholarship on the growing interest in deafness and hardness of hearing by physicians. From the seventeenth century onwards, however, medical men investigated earwax and mucus in the Eustachian Tube and developed theories about the propagation of sound waves via fluid airs and nervous juices in relation to hearing and deafness. This article argues that this focus on fluids brought about a new medical understanding of auditory perception, which viewed hearing and deafness not as dichotomous but as states along a continuous spectrum. As such, this article offers a new perspective on the study and treatment of hearing difficulties in early modern Europe, arguing that there was no solid dividing line between deafness and hearing; if anything, it was permeable and unstable.

Blast Exposure and Self-Reported Hearing Difficulty in Service Members and Veterans Who Have Normal Pure-Tone Hearing Sensitivity: The Mediating Role of Posttraumatic Stress Disorder

Purpose Evidence suggests that military blast exposure may lead to self-reported hearing difficulties despite audiometrically normal hearing. Research identifying potential mechanisms of this association remains limited. The purpose of this article is to evaluate the associations between blast, posttraumatic stress disorder (PTSD), and self-reported hearing difficulty, and to examine PTSD as a possible mediator of the association between blast exposure and hearing difficulty. Method We used baseline data from the Noise Outcomes in Service members Epidemiology (NOISE) study ( n = 477). Participants in this study undergo a comprehensive hearing, and tinnitus if applicable, evaluation and complete a large number of surveys. Pertinent data extracted from these surveys included information on participant's demographics, military service history, including exposure to blast, and health conditions such as symptoms of PTSD. Using regression models and following a formal causal mediation framework, we estimated total associations, natural direct and indirect associations, and percent mediated. Results We found that individuals with blast exposure had higher prevalence of both probable PTSD and self-reported hearing difficulty than individuals who were not blast exposed. Compared with participants without blast exposure, those with blast exposure had twice the prevalence of self-reported hearing difficulty, with 41% of the association mediated through probable PTSD. Conclusion As PTSD is a possible mediator of the association between blast exposure and hearing difficulty, Service members and Veterans with normal pure-tone hearing sensitivity who report hearing difficulties and a history of blast exposure may benefit from evaluation for PTSD symptoms. Supplemental Material https://doi.org/10.23641/asha.16674247

Training with an auditory perceptual learning game transfers to speech in competition

Understanding speech in the presence of acoustical competition is a major complaint of those with hearing difficulties. Here, a novel perceptual learning game was tested for its effectiveness in reducing difficulties with hearing speech in competition. The game was designed to train a mixture of auditory processing skills thought to underlie speech in competition, such as spectral-temporal processing, sound localization, and auditory working memory. Training on these skills occurred both in quiet and in competition with noise. Thirty college-aged participants without any known hearing difficulties were assigned either to this mixed-training condition or an active control consisting of frequency discrimination training within the same gamified setting. To assess training effectiveness, tests of speech in competition (primary outcome), as well as basic supra-threshold auditory processing and cognitive processing abilities (secondary outcomes) were administered before and after training. Results suggest modest improvements on speech in competition tests in the mixed-training compared to the frequency-discrimination control condition (Cohen’s d = 0.68). While the sample is small, and in normally hearing individuals, these data suggest promise of future study in populations with hearing difficulties.

A Comparison of the Perceived Hearing Difficulties of Community and Clinical Samples of Older Adults

Purpose This study aimed to compare the perceived hearing difficulties of a community sample of older adults to two clinical samples of older adults, one with no hearing aid experience and the other with hearing aid experience. Method Scale scores from the Communication Profile for the Hearing Impaired (CPHI) were analyzed for a community sample of older adults ( N = 243) and compared to scores from two clinical samples, one without ( N = 342) and one with prior hearing-aid experience ( N = 179). General linear model (GLM) analyses were performed to examine the effects of data sample type and other factors on CPHI scale scores. Scores for the Hearing Handicap Inventory for the Elderly (HHIE) were also available for most participants and were analyzed. Results GLM analyses of each of the 20 CPHI scale scores showed significant effects of sample type with hearing-loss severity and age most frequently showing significant effects as well. GLM analyses controlling for hearing-loss severity and age across sample types found significant differences on most CPHI scales between the community sample and each of the two clinical samples. Significant differences between the two clinical samples were also found on several CPHI scales and on the HHIE. Conclusions Older adults from the community who did not seek help for hearing difficulties self-reported less difficulty and a greater denial or lack of awareness of communication problems than those who sought assistance at an audiology clinic. For those presumed to have sought a hearing evaluation, those acquiring hearing aids perceived greater communication difficulties in all environments, had greater awareness of communication difficulties, were more accepting of their hearing loss, but tended to allocate more responsibility for their difficulties to others, compared to those who sought clinical assistance but did not acquire hearing aids.

LANGUAGE SKILLS OF DEAF CHILDREN AT JOMBANG STATE EXCEPTIONAL SCHOOL

Deaf children show hearing difficulties from mild to severe categories, classified into hearing loss and deafness. Deaf people are people who have lost the ability to hear so that it hinders the process of language information through hearing, either using or not using hearing aids where the hearing limit they have is sufficient to allow the success of the process of language information through hearing. Deaf children need learning media in the form of teaching aids to enrich their language vocabulary. The props include miniature animals, human miniatures, relevant pictures, illustrated library books, and children's play tools. The method used in this study is a qualitative descriptive method through an observation. Observations are carried out in stages over several days starting from making an approach to making direct observations of objects. The results of observations made to Agus are guided by 4 language skills. Based on the four language skills, the object is able to master in writing skills. Listening skills are not mastered because the object has problems in hearing but can be overcome by the lip motion method. Object reading skills can understand but difficult to convey as well as speaking skills.

A Novel Framework for Sign Language to Text Conversion using Convolutional Neural Network

Sign language is the only way of method to communication for hearing impaired and deaf-dumb peoples. The system will recognize the signs between signers and non-signers, this will give the meaning of sign. The proposed method is helpful for the people who have hearing difficulties and in general who use very simple and effective method is sign language. This system can be used for converting sign language to text using CNN approach. An image capture system is used for sign language conversion. It captures the signs and display on the screen as writing. Results prove that the planned methodology for sign detection is more effective and has high accuracy. Experimental results will acknowledge the signs that the planned system is 80% accuracy.

Lack of Association between Audiogram and Hearing Disability Measures in Mild Cognitive Impairment and Dementia: What Audiogram Does Not Tell You

(1) Introduction: The validity of self-reported hearing disability measures has been assessed using their correlation with the pure-tone average (PTA) hearing loss for non-cognitively impaired adults. However, for people with cognitive impairment, factors in addition to the PTA can play a role in their self-reported difficulties. Patients with cognitive impairment may experience more hearing difficulties due to their brain processing sounds abnormally, irrespective of PTA. (2) Methods: Three groups of hearing aid users who had normal cognition, mild cognitive impairment and dementia were recruited. Self-reported hearing abilities were assessed with the modified Amsterdam inventory for auditory disability (mAIAD) and the speech, spatial and qualities of hearing scale (SSQ). (3) Results: The SSQ and mAIAD scores were highly correlated with each other for all three groups. However, a correlation with objective PTA was found in the normal cognition but not the cognitively impaired groups. Self-reported hearing scores were associated with cognitive scores for the dementia group (4) Discussion: In people with combined cognitive and hearing impairment, PTA alone may be a poor predictor of hearing abilities. Subjective hearing questionnaires together with hearing tests may provide a better understanding of their hearing difficulties.