Subscribe to the Interacoustics Academy newsletter for updates and priority access to online events
Training in ABR
Auditory brainstem responses to chirps delivered by different insert earphones
Description
Summary of: Elberling, C., Kristensen, S. G., & Don, M. (2012). Auditory brainstem responses to chirps delivered by different insert earphones. The Journal of the Acoustical Society of America, 131(3), 2091–2100. https://doi.org/10.1121/1.3677257
This paper describes a research project which compares the ABRs in 11 normal-hearing young adults (N = 22 ears) in response to the Click, the CE-Chirp and the LS-Chirp (ref. 17) at a broad range of stimulus levels. The stimuli are delivered by two different insert earphones, the ER-3A and the ER-2. The ER-3A has an amplitude response that rolls of at about 4 kHz, whereas the ER-2 has an amplitude response which is flat all the way up to and beyond 10 kHz. The recordings are obtained with the Eclipse using a 30 nV background noise stop criteria and weighted averaging. For both chirps it is found that the ABRs at lower levels (i.e. below 60 dB nHL) are significantly larger with the ER-2 than with the ER-3A earphone, and further it is demonstrated that this finding most likely is due to the large differences between the amplitude-frequency responses of the two earphones.
Related course: Beyond the Basics: Threshold ABR
Presenter
Get priority access to training
Sign up to the Interacoustics Academy newsletter to be the first to hear about our latest updates and get priority access to our online events.
By signing up, I accept to receive newsletter e-mails from Interacoustics. I can withdraw my consent at any time by using the ‘unsubscribe’-function included in each e-mail.
Click here and read our privacy notice, if you want to know more about how we treat and protect your personal data.
