scholarly journals Hearing threshold prediction with Auditory Steady State Responses and estimation of correction functions to compensate for differences with behavioral data, in adult subjects. Part 1: Audera and CHARTR EP devices

2012 ◽  
Vol 18 (7) ◽  
pp. MT47-MT53 ◽  
Author(s):  
Stavros Hatzopoulos ◽  
Joseph Petruccelli ◽  
Lech Śliwa ◽  
Wieslaw W. Jędrzejczak ◽  
Krzysztof Kochanek ◽  
...  
Keyword(s):  
Steady State ◽  
Hearing Threshold ◽  
Behavioral Data ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
State Responses

Objective Detection of Auditory Steady-State Responses: Comparison of One-Sample and q-Sample Tests

2006 ◽  
Vol 17 (02) ◽  
pp. 093-103 ◽  
Author(s):  
Mario Cebulla ◽  
Ekkehard Stürzebecher ◽  
Claus Elberling
Keyword(s):  
Steady State ◽  
Fundamental Frequency ◽  
Test Performance ◽  
Statistical Tests ◽  
Hearing Threshold ◽  
Higher Harmonics ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
Objective Detection ◽  
State Responses

Auditory steady-state responses (ASSR) are expected to be useful for the objective, frequency-specific assessment of hearing thresholds in small children. To detect ASSR close to the hearing threshold, a powerful statistical test has to be applied. At present, so-called one-sample tests are used. These tests only evaluate the phase, or the phase and amplitude, of the first harmonic, that is, the fundamental frequency. It is shown that higher harmonics with significant amplitudes are also contained in the ASSR spectrum. For this reason, statistical tests that only consider the first harmonic ignore a significant portion of the available information. The use of a q-sample test, which, in addition to the fundamental frequency, also includes higher harmonics in the detection leads to a better detection performance. The evaluation of test performance uses both detection rate and detection time.

scholarly journals Hearing threshold estimation by auditory steady state responses (ASSR) in children

2018 ◽  
Vol 38 (4) ◽  
pp. 361-368 ◽  
Author(s):  
C. Aimoni ◽  
L. Crema ◽  
S. Savini ◽  
L. Negossi ◽  
M. Rosignoli ◽  
...  
Keyword(s):  
Steady State ◽  
Hearing Threshold ◽  
Threshold Estimation ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
State Responses

Estimating the Audiogram Using Multiple Auditory Steady-State Responses

2002 ◽  
Vol 13 (04) ◽  
pp. 205-224 ◽  
Author(s):  
Andrew Dimitrijevic ◽  
Sasha M. John ◽  
Patricia Van Roon ◽  
David W. Purcell ◽  
Julija Adamonis ◽  
...  
Keyword(s):  
Steady State ◽  
Correlation Coefficients ◽  
Behavioral Threshold ◽  
Behavioral Thresholds ◽  
Sensorineural Hearing Impairment ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
Tonal Stimuli ◽  
Conductive Hearing ◽  
State Responses

Multiple auditory steady-state responses were evoked by eight tonal stimuli (four per ear), with each stimulus simultaneously modulated in both amplitude and frequency. The modulation frequencies varied from 80 to 95 Hz and the carrier frequencies were 500, 1000, 2000, and 4000 Hz. For air conduction, the differences between physiologic thresholds for these mixed-modulation (MM) stimuli and behavioral thresholds for pure tones in 31 adult subjects with a sensorineural hearing impairment and 14 adult subjects with normal hearing were 14 ± 11, 5 ± 9, 5 ± 9, and 9 ± 10 dB (correlation coefficients .85, .94, .95, and .95) for the 500-, 1000-, 2000-, and 4000-Hz carrier frequencies, respectively. Similar results were obtained in subjects with simulated conductive hearing losses. Responses to stimuli presented through a forehead bone conductor showed physiologic-behavioral threshold differences of 22 ± 8, 14 ± 5, 5 ± 8, and 5 ± 10 dB for the 500-, 1000-, 2000-, and 4000-Hz carrier frequencies, respectively. These responses were attenuated by white noise presented concurrently through the bone conductor.

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