The study of otoacoustic emissions (OAE) from the human ear is introduced with special reference to their clinical applicability. The need for a new instrument is demonstrated, which is capable of measuring click evoked OAEs in the clinical environment. Preparatoiy to the specification and construction of such an instrument, a thorough examination of the transient acoustic response of the ear c...

Desde a ampliação do sistema rodoviário no Brasil na década de 1930, tem-se um cenário com inúmeras obras viárias em diferentes condições uso e segurança. Tal fato é preocupante devido à falta monitoramento adequado OAEs (Obras Arte Especiais) por quem estas estruturas devem ser monitoradas. Estas estão sujeitas às ações forças estáticas dinâmicas, podendo causar deslocamentos e/ou deformações ...

The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters. As studies of the olivocochlear (OC) efferent system have matured, issues have been identified that need to be taken into account in the design of new studies and in the interpretation of existing work. The need for high signal-to-noise ratios (SNRs), multiple alternation...

"Cochlea wave propagation...” These words started off David Kemp's seminal 1978 contribution to auditory biophysics, where he first described "a new auditory phenomenon” [JASA 64(5): 1386-1391]. The impact of this report has transcended numerous disciplines, finding an impressive range of scientific and clinical applications (e.g., monitoring cochlear status to ototoxicity, biophysical models o...

INTRODUCTION ANSD is a challenging problem. OBJECTIVE To present our experience on management of the children with ANSD with respect to clinical data. METHODS This retrospective study included all children younger than 16 years of age who applied to the department between 2005 and 2013 (with the exception of newborn hearing screening NHS referrals). The data were derived from pure tone, OAE...

The otoacoustic emissions (OAEs) and auditory evoked potentials (AEPs) measured in two separate large scale studies were examined retrospectively for potential differences between those women using, and those not using, oral contraception (OC). Fourteen dependent variables were examined, all of which exhibited substantial sex differences. For 13 of those 14 dependent variables, the means for th...

In 1991, Arnold Starr and colleagues described an 11-year-old child with the paradoxic findings of absent auditory brainstem responses in the presence of normal cochlear microphonics (CMs) and otoacoustic emissions (OAEs). The child demonstrated severely impaired speech understanding despite a mild loss of hearing sensitivity. Further evaluation showed impaired temporal processing as exhibited ...

PURPOSE Most newborns are screened for hearing loss, and many hospitals use a 2-stage protocol in which all infants are screened first with otoacoustic emissions (OAEs). In this protocol, no additional testing is done for those passing the OAE screening, but infants failing the OAE are also screened with automated auditory brainstem response (A-ABR). This study evaluated how many infants who fa...

The Cretaceous period (~145–65 m.y. ago) was characterized by intervals of enhanced organic carbon burial associated with increased primary production under greenhouse conditions. The global consequences of these perturbations, oceanic anoxic events (OAEs), lasted up to 1 m.y., but short-term nutrient and climatic controls on widespread anoxia are poorly understood. Here, we present a high-reso...