TY - JOUR
T1 - Steady state auditory evoked potentials in normal hearing subjects
T2 - Evaluation of threshold and testing time
AU - Picciotti, Pasqualina Maria
AU - Giannantonio, Sara
AU - Paludetti, Gaetano
AU - Conti, Guido
PY - 2013/2
Y1 - 2013/2
N2 - Background: Steady state responses (SSRs), between 75 and 110 Hz, evoked by auditory amplitude modulated single or multiple tone stimuli, may be used to estimate objective hearing threshold. Methods: The aim of this study was to compare SSRs and click-evoked auditory brainstem responses (ABRs) in both ears of 20 adults (10 males and 10 females, aged between 24 and 36 years) with normal hearing threshold. Results: Mean ABR threshold was found at 21.25 (±5.9) dB nHL. Mean SSR threshold was found at 15.6 (±9.6) dB nHL after a single frequency stimulus (1 kHz); at 10.5 (±18.2) dB nHL and at 7.1 (±12.4) dB nHL after bifrequency stimulation (0.5 and 2 kHz). SSR thresholds after multifrequency stimulation (0.5, 1, 2 and 4 kHz) were found, respectively, at 12.1 (±12.9) dB nHL, 12.2 (±12.8) dB nHL, 12.3 (±8.3) dB nHL and 18.9 (±17.2) dB nHL. Mean duration of the recording session was 6 min in the case of ABRs, while it was 25 min in the single frequency condition and 29 min in the multifrequency condition in the case of SSRs. Conclusion: SSRs can be used for frequency-specific objective audiometry. The multifrequency stimulation greatly reduces the whole testing time.
AB - Background: Steady state responses (SSRs), between 75 and 110 Hz, evoked by auditory amplitude modulated single or multiple tone stimuli, may be used to estimate objective hearing threshold. Methods: The aim of this study was to compare SSRs and click-evoked auditory brainstem responses (ABRs) in both ears of 20 adults (10 males and 10 females, aged between 24 and 36 years) with normal hearing threshold. Results: Mean ABR threshold was found at 21.25 (±5.9) dB nHL. Mean SSR threshold was found at 15.6 (±9.6) dB nHL after a single frequency stimulus (1 kHz); at 10.5 (±18.2) dB nHL and at 7.1 (±12.4) dB nHL after bifrequency stimulation (0.5 and 2 kHz). SSR thresholds after multifrequency stimulation (0.5, 1, 2 and 4 kHz) were found, respectively, at 12.1 (±12.9) dB nHL, 12.2 (±12.8) dB nHL, 12.3 (±8.3) dB nHL and 18.9 (±17.2) dB nHL. Mean duration of the recording session was 6 min in the case of ABRs, while it was 25 min in the single frequency condition and 29 min in the multifrequency condition in the case of SSRs. Conclusion: SSRs can be used for frequency-specific objective audiometry. The multifrequency stimulation greatly reduces the whole testing time.
KW - Auditory brainstem response
KW - Behavioral threshold
KW - Steady state response
UR - http://www.scopus.com/inward/record.url?scp=84871205573&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84871205573&partnerID=8YFLogxK
U2 - 10.1159/000345497
DO - 10.1159/000345497
M3 - Article
C2 - 23258317
AN - SCOPUS:84871205573
VL - 74
SP - 310
EP - 314
JO - ORL; journal for oto-rhino-laryngology and its related specialties
JF - ORL; journal for oto-rhino-laryngology and its related specialties
SN - 0301-1569
IS - 6
ER -