Effects Of Hearing Aids Research Articles

A study of the measurement method for hearing aid effect and speech reading ability in hard of hearing cases

A study of the measurement method for hearing aid effect and speech reading ability in hard of hearing cases

Hearing Aid Effect in Unilateral Conductive Deafness

Hearing Aid Effect in Unilateral Conductive Deafness

Hearing Aid Effect in Unilateral Conductive Deafness

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Hearing Aid Effect in Unilateral Conductive Deafness

Hearing Aid Effect in Unilateral Conductive Deafness

EDUCATIONAL TREATMENT FOR THE MODERATELY HARD OF HEARING IN PRIMARY SCHOOL--A CLASS FOR THE HARD OF HEARING. 1. ESTABLISHMENT OF THE CLASS FOR THE HARD OF HEARING

Nineteen handicapped pupils, 15 of sensory-neural and 4 of mixed type hearing loss of 45_??_60db, were educated with the use of hearing aids, speechreading and visual educations for the past two years. The results of the investigations are as follows: 1) Effects of hearing aids and speechreading. The use of hearing aids brought much better im provement of hearing discrimination in 12 pupils, fairly good in 5 and poor in 2. Combination of speechreading with hearing aids helped more to improve hearing discrimination. 2) Educational achievement. Nine pupils who had two years' education all showed considerable educational progress. 3) Results of speech correction. Seven of 19 pupils showed articulation disorders. Speech correction on them proved to be effective with the use of hearing aids. 4) Intelligence test. Mental ability of pupils were assessed by means of WISC test (modified for Japanese use). Pupils whose I.Q. were below 90, were reluctant to all the special educational procedures mentioned above. Author concluded that the children who have both an average hearing loss 45--60db and the normal intelligence, should be eligible for the class for the hard of hearing.

EDUCATIONAL TREATMENT FOR THE MODERATELY HARD OF HEARING IN PRIMARY SCHOOL--A CLASS FOR THE HARD OF HEARING. 2. TWO YEARS' SURVEY OF EDUCATIONAL PROCEDURE AND ITS RESULTS IN THE CLASS FOR THE HARD OF HEARING

Nineteen handicapped pupils, 15 of sensory-neural and 4 of mixed type hearing loss of 45_??_60db, were educated with the use of hearing aids, speechreading and visual educations for the past two years. The results of the investigations are as follows: 1) Effects of hearing aids and speechreading. The use of hearing aids brought much better im provement of hearing discrimination in 12 pupils, fairly good in 5 and poor in 2. Combination of speechreading with hearing aids helped more to improve hearing discrimination. 2) Educational achievement. Nine pupils who had two years' education all showed considerable educational progress. 3) Results of speech correction. Seven of 19 pupils showed articulation disorders. Speech correction on them proved to be effective with the use of hearing aids. 4) Intelligence test. Mental ability of pupils were assessed by means of WISC test (modified for Japanese use). Pupils whose I.Q. were below 90, were reluctant to all the special educational procedures mentioned above. Author concluded that the children who have both an average hearing loss 45--60db and the normal intelligence, should be eligible for the class for the hard of hearing.

ELECTRO ACOUSTICAL CHARACTERISTIC AND ARTICULATION SCORES OF HEARING AID

The relation between electroacoustical characteristics and articulation scores of hearing aid was studied in respect with effectiveness of hearing aid. Five different types of hearing aids were classified in order of A, B, C, D and E in respect to their articulation scores of speech obtained by 40 persons of nerve deafness and 6 persons of mixed deafness. This order could be heardly found in the frequency-characteristic of out put and the harmonic distortion of the tested hearing aids. However, the results of transient distortion of the hearing aids was proved to be proportional to the order of the effectiveness of the hearing aids. Furthermore, compression amplification circuit added to the hearing aid was studied for the purpose of modifying effectiveness of the hearing aid and, its positive result could be obtained.

THE INDICATION OF HEARING AID BY PURE TONE AUDIOMETRY

From the relation between the effectiveness of a hearing aid and the threshold curve of air conduction the following results were obtained: 1) In cases of conductive or mixed deafness it was difficult to decide the efficiency of a hearing aid by considering only the threshold curve of air conduction. 2) In some cases of perceptive deafness, the efficiency of a hearing aid was indicated by the air conduction curve. For instance : in the cases in which the air conduction curve shows a slow decline in the middle and high tone ranges, in which then the average hearing loss indicates 40∼55 db, the improvement of hea- ring with hearing aids can be expected; but in the cases where the air conduction curve indicates an abrupt fall in the high tone range, the use of a hearing aid will be of no avail.

The use and effectiveness of hearing AIDS

The use and effectiveness of hearing AIDS

LVII. Can We Scientifically Advise Patients as to the Effectiveness of Hearing Aids?

LVII. Can We Scientifically Advise Patients as to the Effectiveness of Hearing Aids?