Learn More
Telephone speech comprehension is being evaluated in six prelingually deaf children implanted with the Nucleus 22 prosthesis fitted with the Speak strategy. All of them have had at least 1.5 years of experience with their implant. When the tests began, they had already had at least 2 months' experience with the same map in their speech processor. The(More)
In the random control procedure, responding to a conditioned stimulus (target CS) is prevented when the probability of unsignaled, unconditioned stimuli (USs) in the intertrial interval (ITI) is equal to the probability of the US in the presence of the target CS. Three experiments used an autoshaping procedure with White Carneaux pigeons to examine the(More)
Contrast-enhanced ultrasound offers a noninvasive means of subjectively and quantitatively evaluating renal perfusion in cats with renal disease, or in renal transplant patients. In this study, we characterized the pattern of ultrasonographic contrast enhancement in 16 normal feline kidneys in eight cats using contrast-enhanced power Doppler and(More)
This work aimed to study the speech comprehension of 13 native Spanish-speaking patients implanted with the Nucleus-22 system. Experiments were performed under two conditions. First, tests of isolated vowel discrimination, bisyllable word recognition in a consonant-vowel-consonant context, and fluency speech comprehension were conducted with the speech(More)
Cochlear implants have been designed to partially restore hearing to those people who are totally deaf. Multi-channel cochlear implants offer the opportunity to evoke acoustic perceptions like loudness and pitch, elicited by a controllable pattern of electric stimulation by means of electrodes placed in different places along the cochlear length. In this(More)
In this work, a case study of the first deaf-blind patient implanted with the Combi-40 cochlear implant is analyzed. The patient is a 69-year-old man who has been blind since the age of 25 and deaf since the age of 51. Before surgery, his wife used Braille and finger-spelling on his hand to communicate with him. In this study, we intend to show how the(More)
Twelve patients with sensorineural hearing loss were stimulated by a transtympanic electrode contacting the cochlear promontory. Nine of them were tested to study hearing perception associated with various features of electrical signals, using an auditory electrical stimulator. Biphasic pulse bursts and sine-wave bursts were used as stimuli. Different(More)
  • 1