The impoverished auditory information provided by cochlear implant (CI) results in impaired auditory perception and production in mnay CI users. Speech perception in CI users has been well studied and fully documented. In contrast, much less has been studied for speech production in CI users. Tactile stimulation has been shown to enhance CI performance. In the present study, we aim to discover ...

Speech perception, especially in noise, may be maximized if the perceiver observes the naturally occurring visual-plus-auditory cues inherent in the production of spoken language. Evidence is conflicting, however, about which aspects of visual information mediate enhanced speech perception in noise. For this reason, we investigated the relative contributions of audibility and the type of visual...

Visual speech information influences the accuracy and content of auditory speech perception, with both the static and dynamic components of the visual signal playing a role. However, less is known about the effect of visual information when it is presented as a source of speech production feedback. This paper presents results from a delayed auditory feedback paradigm which contrasted the presen...

Postmitotic hair-cell regeneration in the inner ear of birds provides an opportunity to study the effect of renewed auditory input on auditory perception, vocal production, and vocal learning in a vertebrate. We used behavioral conditioning to test both perception and vocal production in a small Australian parrot, the budgerigar. Results show that both auditory perception and vocal production a...

Recent studies of human speech motor learning suggest that learning is accompanied by changes in auditory perception. But what drives the perceptual change? Is it a consequence of changes in the motor system? Or is it a result of sensory inflow during learning? Here, subjects participated in a speech motor-learning task involving adaptation to altered auditory feedback and they were subsequentl...

Background: The ability to communicate using speech is a remarkable skill, which requires precise coordination of articulatory movements and decoding of complex acoustic signals. According to the traditional view, speech production and perception rely on motor and auditory brain areas, respectively. However, there is growing evidence that auditory-motor circuits support both speech production a...

This paper describes two studies of 19 young-adult speakers of American English in which measures were made of: (a) phoneme contrast – articulatory distance between vowels in each of two vowel pairs and acoustic distance between the sibilants /s/ and //, (b) auditory discrimination of tokens from synthetic vowel and sibilant continua, and (c) contact of the tongue tip with the lower incisors f...

We have studied neurocognitive mechanisms of audiovisual perception of non-meaningful speech. We demonstrate different event-related brain potential (ERP) differences to non-speech and speech audiovisual stimuli. Our imaging studies show that viewing and listening to speech activate overlapping areas in the frontal cortex, which is also activated during speech production. We also demonstrate th...

We have studied neurocognitive mechanisms of audiovisual perception of non-meaningful speech. We demonstrate different event-related brain potential (ERP) differences to non-speech and speech audiovisual stimuli. Our imaging studies show that viewing and listening to speech activate overlapping areas in the frontal cortex, which is also activated during speech production. We also demonstrate th...

objective: the aim of the present research was to compare the auditory perception and verbal intelligibility in children with cochlear implant, hearing aids and normal hearing. methods: 60 children aged 5-7 years were divided to three groups and each group contained 20 children. the first and second groups were selected ordinarily from children with cochlear implant and hearing aids by convenie...