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Biomedical subjects

T S Kapteyn

Publications and source records attributed to T S Kapteyn.

11 recordsLinked to original sources
PubMed1992

Technical possibilities in the school situation for the education of hearing-impaired children.

For hearing-impaired children, the main problem in the classroom is the signal-to-noise ratio. To improve the signal-to-noise ratio, several class systems have been developed, three of which have been investigated in this study. The systems are shown to be equivalent in a situation without a channel for pupil response. Application of such pupil response channels will decrease the improvement in signal-to-noise ratio brought about by the class system. It is argued that the choice among several combinations of class system and pupil response channel is governed by the primary goal of education and how this goal is to be achieved.

Adolescent↗
PubMed1979

Height vertigo and human posture.

A theory is presented supporting a geometrical explanation for physiological height vertigo being a distance vertigo through visual destabilization of postural balance when the distance between the eyes and visible stationary contrasts becomes critically large. Physiological and posturographic data obtained under natural height vertigo conditions are consistent with this hypothesis.

Humans↗
PubMed1977

Satisfaction with fitted hearing aids. I. An analysis of technical information.

By means of a questionnaire, satisfaction with fitted hearing aids has been judged 6 months after prescription. An analysis of the information obtained, together with some audiological features of 155 patients with hearing aids is reported. The influence of the most important factors is discussed and the findings are compared with those of other surveys. The relationship between satisfaction, and the degree of hearing loss and discrimination loss is very weak. The conclusion is that the population consists of sub-populations in which different criteria apply to hearing aid satisfaction. These criteria may be more closely related to psycho-social factors than to technical aspects. A second part of the study is devoted to that subject.

Adult↗
PubMed1977

Satisfaction with fitted hearing aids. II. An investigation into the influence of psycho-social factors.

In the first article an analysis of technical information about hearing aid satisfaction, obtained by a questionnaire, was presented. To obtain complementary information, interviews were held with patients who showed a low satisfaction. This has led to an inventory of the factors in the psycho-social field of importance in the process of rehabilitation. The questionnaire has been modified and 165 hearing aid patients have been evaluated with this updated questionnaire. Analysis of the information obtained shows that the answers given intercorrelate well. It may be surmised that the approach is based on a sort of "attitude" incorporated in the given score and defining the hearing aid satsifaction. The audiometric features of the patients intercorrelate as well. It is surprising that the correlation between the audiometric features and the satisfaction with the aid is low, and this is discussed. The question arises as to what degree the routine audiometric tests reveal the relevant features and the impaired hearing. Where it seems to be impossible to use the available audiometric features for making a prediction about the satisfaction, the conclusion is drawn that full attention must be given to training in the use of the hearing aid.

Aged↗
PubMedDate not supplied

Factors in the appreciation of a prosthetic rehabilitation.

6 months after the prescription of a hearing aid, the appreciation of the aid was judged in a group of 160 patients by a questionnaire. The analysis of the answers in combination with the audiometric features is reported. The answers given in a questionnaire have a good interrelation and agree with the score given for the aid. The audiometric features also showed a good correlation for every one but only a weak relation was found with the subjects' appreciations of the aid. The implications of this hearing aid evaluation for the improvement of the fitting procedure are discussed.

Adult↗