Is there a relationship? I t became clear in the last decades that neuropathy is not a separate clinical entity, but a component of several related complications (1). Although the functional consequences of neuropathy are well defined in various organ systems, the relationship of the alterations in the networks of the neuronal system is still poorly documented. Assessment of the potential commo...

It all began with a comic book! At the age of 6, I was reading a Superman comic at my apartment in Manhattan when, in the centerfold, I found plans for building a crystal radio. To do so, I needed my father’s used razor blade, a piece of pencil lead, an empty toilet paper roll, and some wire, all of which I had no trouble obtaining. In addition, I needed an earphone, which I promptly appropriat...

OBJECTIVES Contra-lateral routing of signals (CROS) devices re-route sound between the deaf and hearing ears of unilaterally-deaf individuals. This rerouting would be expected to disrupt access to monaural level cues that can support monaural localisation in the horizontal plane. However, such a detrimental effect has not been confirmed by clinical studies of CROS use. The present study aimed t...

BACKGROUND The interference between the incoming sound wave and the acoustic energy reflected by the tympanic membrane (TM) forms a standing wave in human ear canals. The existence of standing waves causes various problems when measuring otoacoustic emissions (OAEs) that are soft sounds closely related with the functional status of the inner ear. The purpose of this study was to propose an in-s...

OBJECTIVES Two-channel recordings of infants' air- and bone-conduction auditory brainstem responses to brief tones show ipsilateral and contralateral (to the stimulated ear) asymmetries which may be used to isolate which cochlea is the primary contributor to the response. The objective of this study was to determine whether similar ipsilateral/contralateral asymmetries are also present in the a...

Monaural sone functions are obtained for a no noise condition and under five levels of masking noise using the method of fractionation This method precludes the use of both ears in obtaining such functions as has been the case with dichotic loudness balance and other related procedures The obtained curves are found to parallel previously found masked func tions in one case and in another to sho...

BACKGROUND The most common complaint of adults with hearing loss is understanding speech in noise. One class of masker that may be particularly useful in the assessment of speech-in-noise abilities is interrupted noise. Interrupted noise usually is a continuous noise that has been multiplied by a square wave that produces alternating intervals of noise and silence. Wilson and Carhart found that...

Speech Recognition and Comfort Using Hearing Instruments with Adaptive Directional Characteristics in Asymmetric Listening Conditions. Ear & Hearing. 26(6):669-679, December 2005. Emma Mackenzie; Mark E. Lutman Links: Abstract | HTML | PDF (1.02 M) Abstract: Objective: Hearing instruments with adaptive directional microphone systems attempt to maximize speech-to-noise ratio (SNR) and thereby im...

Objective-To establish the reliability and effectiveness of screening for hearing loss by brainstem auditory evoked potential testing in high risk neonates. Design-Seven year investigation of newborn babies admitted to a special care baby unit and monitored through a regional children's audiology unit. Setting-Special care baby unit and children's audiology department, Belfast. Subjects-405 neo...