Auditory steady-state responses in babies with normal hearing and with temporary conductive hearing loss

2010 ◽  
Vol 9 (1) ◽  
pp. 26-32 ◽  
Author(s):  
Peter Watkin ◽  
Dani Tomlin ◽  
Margaret Baldwin
Keyword(s):  
Hearing Loss ◽  
Steady State ◽  
Conductive Hearing Loss ◽  
Normal Hearing ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
Conductive Hearing ◽  
State Responses

Estimating Air-Bone Gaps Using Auditory Steady-State Responses

2004 ◽  
Vol 15 (01) ◽  
pp. 067-078 ◽  
Author(s):  
Fuh-Cherng Jeng ◽  
Carolyn J. Brown ◽  
Tiffany A. Johnson ◽  
Kathy R. Vander Werff
Keyword(s):  
Hearing Loss ◽  
Steady State ◽  
Bone Conduction ◽  
Strongly Correlated ◽  
Profound Hearing Loss ◽  
Stimulus Artifact ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
Conductive Hearing ◽  
State Responses

Auditory steady-state responses (ASSR) were recorded using stimuli presented both via air conduction (AC ASSR) and bone conduction (BC ASSR) in 10 normal-hearing subjects with different degrees of simulated conductive hearing losses. The ASSR-estimated ABG (air-bone gap) was compared with the ABG measured using traditional pure-tone audiometric procedures. Reproducibility of the BC ASSR electrophysiological thresholds was also assessed. Additionally, a group of five subjects with profound sensorineural hearing loss was used to establish stimulation levels in which the BC ASSR was contaminated by stimulus artifact. Results of this investigation showed that the ASSR and behavioral ABGs were strongly correlated with each other (r = .81). However, ASSR-estimated ABGs slightly overestimated the magnitude of the behavioral. Reproducibility of the BC ASSR electrophysiological thresholds was good. Data from the five subjects with profound hearing loss, however, demonstrated that the levels where stimulus artifact became problematic were relatively low. This means BC stimulation may be appropriate only for subjects with normal or mildly impaired cochlear sensitivity.

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.

Confirmation of previous results of the occlusion effect through auditory steady-state responses in normal-hearing adults

2016 ◽  
Vol 22 (4) ◽  
pp. 231
Author(s):  
Alioth Guerrero-Aranda ◽  
Eleina Mijares-Nodarse ◽  
Heivet Hernandez-Perez ◽  
Alejandro Torres-Fortuny
Keyword(s):  
Steady State ◽  
Normal Hearing ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
Occlusion Effect ◽  
State Responses

Multiple Auditory Steady-State Responses to Bone-Conduction Stimuli in Adults with Normal Hearing

2005 ◽  
Vol 16 (03) ◽  
pp. 172-183 ◽  
Author(s):  
Susan A. Small ◽  
David R. Stapells
Keyword(s):  
Steady State ◽  
Bone Conduction ◽  
Normal Hearing ◽  
Phase Delay ◽  
Research System ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
State Responses ◽  
Single Versus ◽  
Air Conduction

ASSR thresholds to bone-conduction stimuli were determined in 10 adults with normal hearing using mastoid placement of the bone oscillator. ASSRs to 0–50 dB HL bone-conduction stimuli and to 30–60 dB HL air-conduction stimuli were compared. The effect of alternating stimulus polarity on air- and bone-conduction ASSRs was also investigated. Stimuli were bone- and air-conduction amplitude-modulated tones (500–4000 Hz carrier frequencies, modulated at 77–101 Hz). ASSRs were recorded using the Rotman MASTER research system. Mean (1SD) bone-conduction ASSR thresholds were 22(11), 26(13), 18(8), and 18(11) dB HL for 500, 1000, 2000, and 4000 Hz, respectively. Except for a steeper slope at 500 Hz, ASSR intensity-amplitude functions for binaural bone- and air-conduction stimuli showed the same slopes; intensity-phase-delay functions were steeper at 1000 Hz for ASSRs to bone-conduction stimuli. ASSR amplitudes and phases did not differ for single- versus alternated-stimulus polarities for both bone- and air-conduction stimuli. The steeper amplitude slope for ASSRs to 500 Hz stimuli may reflect a nonauditory contribution to the ASSR.

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