The threshold value for the psychogenically deaf patient is not correct, but also not random. It is assumed that the patient will usually take the loudness of the test tone, for example, comfort level, as his reference. So, in the most cases, it is assumed that the audiogram will take the shape of an equal loudness contour, espesially of 40- to 60-dB gradual sloping form, resembling a saucer. In the Bekesy audiogram, most patients with psychogenic deafness showed a unique record, of the continuous tracing showing better hearing than the pulsed tracing (Jerger Type V). This is proof that it is a recording of the loudness, and not of the threshold.
The purpose of this study was to examine the effects of differences in the phonological awareness mechanism pattern between deaf children using hearing aids and those with cochlear implants for improving phonological awareness, by examining 47 deaf children with hearing aids (19 preschoolers 5-6 years old; 14 first graders; 14 second graders) and 56 deaf children with cochlear implants (20 preschoolers 5-6 years old; 19 first graders; 17 second graders). The deaf children were observed using abstraction of syllabic components of the words. The main results indicate that deaf children with hearing aids make use of visual imagery on the abstraction of syllabic components.
The goal of the Iwaki Health Promotional Project was to prevent illness and promote health in the population of Iwaki town. In our study, a part of this Project, we used hearing tests and questionnaires about hearing. Pure-tone audiometry and questionnaire surveys for the symptoms of tinnitus, ear fullness and hearing impairment were performed with 956 participants. The hearing threshold levels obtained for each participant were analyzed separately by gender and age. The results revealed that age-related hearing loss tended to be more progressive at higher frequencies. Furthermore, the average of hearing thresholds at 4, 000Hz in people in their 50's, 60's, 70's and 80's were higher in males than in females. The percentages of participants complaining of tinnitus, ear fullness and hearing impairment were 32.2%, 15.9% and 36.9%, respectively. Many of the participants, especially in their 70's and 80's complained of hearing impairment, whereas the percentage of participants complaining of tinnitus was relatively low.
There is no national welfare system for moderately hearing-impaired children in Japan. We report on the unique subsidy system provided in Mie prefecture for purchasing hearing aids for children with moderate hearing impairment. Between April 2006 and April 2007, 25 children were fitted with hearing aids at the Mie Prefectural Child Guidance Center. Seven children with moderate hearing impairment purchased their hearing aids using this subsidy. In six of these seven children, the hearing impairment was diagnosed before 4 months of age by hearing screening for newborns. The age of the children at which the hearing aids were bought varied from 10 months to five years. Most of them were using the hearing aids practically in daily life. According to a questionnaire survey of the parents, deregulation of the system and increase of subsidy would be desirable. On the other hand, six of the children could not take advantage of this system because of age, hearing level or income restriction. Twelve children with severe hearing loss were provided hearing aids by the National Physically Handicapped Persons Welfare Law. It is difficult to detect moderate hearing impairment and fit hearing aids early in life. The meritorious system of newborn hearing screening and active checking of children, sufficient support, and education to the parents are necessary.