Successful early intervention in children with permanent hearing loss requires assessment techniques that can accurately reflect the behavioral audiogram in infancy. This retrospective study compared auditory steady-state response (ASSR) findings from subjects tested in the first three months of life with subsequently obtained behavioral hearing levels. ASSR audiograms were established using am...

Auditory sensitivity in three species of woodpeckers was estimated using the auditory brainstem response (ABR), a measure of the summed electrical activity of auditory neurons. For all species, the ABR waveform showed at least two, and sometimes three prominent peaks occurring within 10 ms of stimulus onset. Also ABR peak amplitude increased and latency decreased as a function of increasing sou...

We determined the audiogram of Phyllostomus hastatus (the greater spear-nosed bat), a large, omnivorous American leaf-nosed bat native to Central and South America. A conditioned suppression/avoidance procedure with a fruit juice reward was used for testing. At an intensity of 60 dB sound pressure level (SPL re 20 microN/m(2)), the hearing range of P. hastatus extends from 1.8 to 105 kHz, with ...

Abstract Aim Sudden onset sensorineural hearing loss (SSNHL) presents infrequently to ENT services in Aberdeen Royal Infirmary. Although UK guidelines are place for the management of SSNHL, practicalities organising these cases within our department can be challenging junior staff leading variation time review and timings intervention. We Aimed assessed current local practice comparison compare...

OBJECTIVE To evaluate the effectiveness of systemic high-dose dexamethasone therapy for sudden sensorineural hearing loss in comparison to the previous treatment regimen at our clinic with systemic prednisone 100 mg daily for 7 days analyzed in a previous study. METHODS We conducted a retrospective review of an electronic patient data base of 79 patients with idiopathic sudden sensorineural h...