Effect of Varying Phase Between Frequency and Amplitude Modulation on Bone Conduction Auditory Steady State Responses

2010 ◽  
Vol 31 (6) ◽  
pp. 815-824 ◽  
Author(s):  
Siobhán K. Brennan ◽  
Ruth E. Brooke ◽  
John C. Stevens ◽  
Brian H. Brown
Keyword(s):  
Steady State ◽  
Amplitude Modulation ◽  
Bone Conduction ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
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.

Hearing Screening Using Auditory Steady State Responses Obtained by Simultaneous Air- and Bone-Conduction Stimuli

2015 ◽  
Vol 66 (1) ◽  
pp. 8-15
Author(s):  
Eleina Mijares ◽  
Lidia Báez ◽  
Licer Cabrera ◽  
María C. Pérez-Abalo ◽  
Alejandro Torres-Fortuny
Keyword(s):  
Steady State ◽  
Bone Conduction ◽  
Hearing Screening ◽  
Steady State Responses ◽  
Auditory Steady State Responses ◽  
State Responses
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