The impetus of the neonatal screening / EHDI programs has pushed forward the development of other technologies not based on information from the Auditory Periphery. The pages of this section are intended to describe laconically these new technologies. As time passes by and more studies are being published (mainly for the ASSR section) we will new and relevant information.

In these pages you can find information on the following arguments:

Auditory Steady State Responses

•  Although the technology behind the ASSR was not intended (at least initially) as a new application for neonatal and infant screening / monitoring, the progresses in the field are important and in the near future ASSR protocol might assist EHDI programs. The basic information on ASSR can be found here. The lectures are presented as pdf files. If you don't have the Pdf  Adobe Acrobat reader you can download it from here  (approximatelly 6 M).
  
  
  
• A powerpoint presentation on the use of ASSR technology in NHS programs (pdf format) . By Dr. Barbara Cone-Wesson (ISA round Table, Phoenix Arizona, September 25-29 2004).
  
  
• Lecture by Dr. James Hall on the topic "The Role of Auditory Steady State Response (ASSR)in Audiology Today". NOTE The lecture is offered as a pdf file (5 MB) of relative large dimensions. If you have problems downloading it please contact us.
  
• Lecture by Dr. James Hall on the topic "Application of Auditory Steady State Response (ASSR) in Diagnosis of Infant Hearing Loss in the Era of Universal Newborn Hearing Screening". NOTE The lecture is offered as a pdf file (1.8 MB). If you have problems downloading it please contact us.

 

Automated ABR

•   The ABR technology appeared before the OAE testing in the field of hearing screening, but it was compromised by the long time requirements of each ABR recording. In the last 10 -15 years, numerous proposals have appeared in the literature presenting automated versions of the traditional ABR testing procedures (AABR). Lately fourth generation OAE equipment incorporate AABR modules, thus both technologies are being developed in parallel . It should noted though, that due to improvements in the AABR algorithms the time differences between AABR and OAE testing are significantly decreasing. The AABR provides better information about the hearing threshold (peripheral + central components of the auditory system), but requires better ambient acoustics and relaxed / immobilized infants.
  
  The basic information on AABR can be found here.