OBJECTIVES/HYPOTHESIS The variability in speech perception between cochlear implant users is thought to result from the degeneration of the auditory nerve. Degeneration of the auditory nerve, histologically assessed, correlates with electrophysiologically acquired measures, such as electrically evoked compound action potentials (eCAPs) in experimental animals. To predict degeneration of the aud...

Previous empirical observations have led researchers to propose that auditory feedback (the auditory perception of self-produced sounds when speaking) functions abnormally in the speech motor systems of persons who stutter (PWS). Researchers have theorized that an important neural basis of stuttering is the aberrant integration of auditory information into incipient speech motor commands. Becau...

It is generally assumed that children learn to pronounce speech sounds by imitation from adult models. This requires that a child creates some form of representation for a speech sound in a single modality, which he uses for both perception and production. It is usually imagined that this underlying representation is auditory/acoustic, but arguments can also be made for motor/gestural alternati...

This reflection paper addresses the importance of interaction between voice perception and production, emphasizing processes auditory-vocal integration that are not yet widely reported in context clinicians. Given above, this article seeks to 1) highlight important link production 2) consider whether relationship might be exploited clinically for diagnostic purposes therapeutic benefit. Existin...

The present study evaluated auditory-visual speech perception in cochlear-implant users as well as normal-hearing and simulated-implant controls to delineate relative contributions of sensory experience and cues. Auditory-only, visual-only, or auditory-visual speech perception was examined in the context of categorical perception, in which an animated face mouthing ba, da, or ga was paired with...

Cochlear implantation is a standard intervention for deafness, yet the ability of implanted patients to understand speech varies widely. To better understand this variability, we used functional near-infrared spectroscopy to image auditory cortex activation in response to different classes of sound and compared that to behavioral measures of speech perception. Both control and implanted partici...

BACKGROUND AND OBJECTIVES A deficit in phonological processing abilities has been hypothesized as a cause of reading deficits among poor readers, but the precise etiology of this deficit is still unknown. Many studies have investigated the relation of auditory processing and speech perception with phonological processing, while the relation between these are not well understood. Thus, the prese...

Speech, for most of us, is a bimodal percept whenever we both hear the voice and see the lip movements of a speaker. Children who are born deaf never have this bimodal experience. We tested children who had been deaf from birth and who subsequently received cochlear implants for their ability to fuse the auditory information provided by their implants with visual information about lip movements...