[Psychophysical and objective investigation of hearing in presbyacusis].
In 30 individuals aged 50 to 82 the following audiologic examinations were performed: tonal audiometry (air/bone conduction), impedance audiometry (tympanometry and registration of stapedius reflex to pure tone of 0.5-4 kHz and noises) and ERA tests after acoustic stimulation from different levels of the hearing pathway (BERA, MLR and SP). The assessment of the results showed:--1. the threshold values in the objective methods are proportional to those obtained in tonal audiometry;--2. in ERA an interpersonal lability of latencies at different levels of the hearing pathway was observed including shortening, elongation and normal values;--3. in 70% of the examined aged 50-82 SRT were below 70 dB SL and loudness sumation below 25 dB;--4. shortening of the SP latencies was in 100% correlated to the low values of the loudness summation and recruitment found in psychophysical examinations.
Pruszewicz
A
A
Klinika Foniatrii i Audiologii AM w Poznaniu.
Kulczyński
B
B
Swidziński
P
P
Wika
T
T
D000158:Acoustic Impedance Tests; D000368:Aged; D001301:Audiometry, Pure-Tone; D016057:Evoked Potentials, Auditory, Brain Stem; D005260:Female; D006316:Hearing Loss, High-Frequency / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011304:Presbycusis / Q000175:diagnosis*; D011601:Psychophysics
Badanie psychofizyczne i obiektywne słuchu w presbyacusis.