| Abstrakt: |
Threshold of audibility, loudness discomfort level (LDL), and acoustic reflex threshold (ART) were obtained by the tracking method on 51 cars of 34 children enrolled in a residential school for the deaf. Stimuli consisted of broad-band noise and pure-tone frequencies of 0.5, 1, 2, and 4 kHz. Stimulus duration was 500 msec, with approximately 30-msec rise time and approximately 50-msec fall time and 500-msec interstimulus interval. Relationships between loudness discomfort level (LDL) and acoustic reflex threshold (ART) fell into four distinct categories. That is, those subjects without loudness discomfort level and acoustic reflex threshold, those with LDL present and ART absent, those with ART present and LDL absent, and those with LDL and ART present. The results of this study will be discussed in terms of its relationship to the fitting of hearing aids on deaf children. [ABSTRACT FROM AUTHOR] |
