Normal subjects were presented with dichotic pairs of sounds differing in pitch-timbre combination. Their task was to detect a fixed target sound that occurred randomly but equally often in the right and the left ear in two-thirds of the trials. Half the subjects performed this task with sounds produced by familiar natural instruments (violin, flute, guitar and drum), and the other subjects per...

The purpose of this investigation was to determine the impact of commonly recommended cochlear implant (CI) speech processor placements on microphone output both with and without single channel front-end compression. The impact of this compression use on interaural level difference (ILD) magnitude was also evaluated for the ear-level position. Finally, pilot localization data collected with and...

Dichotic listening to verbal stimuli results in a right ear advantage (REA), indicating a left hemisphere processing superiority. The magnitude of the REA can be modulated by instructions to direct attention to the left or right ear stimulus. A previous study from our laboratory showed that presenting a prime syllable before the presentation of the dichotic syllables increases reports of the no...

Bone-conduction transducers offer a unique advantage for radio communication systems, allowing sound transmission while the ear canals remain open for access to environmental sounds, or plugged for blocking of environmental sounds. This study compared the intelligibility of noise-degraded speech presented through bone-conduction hearing administered at different locations, and through air-condu...

BACKGROUND Asymmetric reduction of the P3 event-related potential (ERP) has provided evidence of left temporal lobe dysfunction in schizophrenia. Prior studies have been limited by reliance on simple target detection (oddball) tasks with pure tones. This study investigated the time course and topography of ERPs to binaural syllables or complex tones in dichotic listening tasks. METHODS Event-...

Introduction In past dichotic listening studies, linguistic stimuli have shown a right ear advantage, implying left hemisphere dominance for language processing, while other stimuli incorporating pitch distinctions have shown no ear preference or a left ear (right hemisphere) advantage. An experiment was devized to compare ear preferences in tone language speakers for thl,"ee sets of stimuli: p...

There is a considerable amount of controversy about the model(s) of comparative advantage and its applicability to international business, in particular as a guide to the success of nations and/or firms in international markets. This perception (or understanding) of inapplicability of the model(s) of comparative advantage has lead international business experts to develop new models, or what ma...

recent developments in medicine have given us a better insight into a group of disorders known as autoimmune diseases. in particular, advances have occurred in our understanding of the autoimmune inner ear disease (aied). in this article, the authors review the different postulated theories in the pathogenesis of this disease. the clinical presentation, the available para-clinical diagnostic to...

INTRODUCTION The purpose of the present study was to identify biomarkers of listening difficulties by investigating white matter microstructure in children suspected of auditory processing disorder (APD) using diffusion tensor imaging (DTI). Behavioral studies have suggested that impaired cognitive and/or attention abilities rather than a pure sensory processing deficit underlie listening diffi...

Perception of dichotic chords (free recall and directed recall), nonsense syllables (CVs), and three-pair digits was assessed on 24 musicians and 24 nonmusicians. On the dichotic-CV and dichotic-digit free-recall tasks, there was a significant right-ear advantage, but there were no group differences. With the dichotic-chords, free-recall condition, a significant left-ear advantage was observed ...