Jeremy L. Loebach

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Adaptation to the acoustic world following cochlear implantation does not typically include formal training or extensive audiological rehabilitation. Can cochlear implant (CI) users benefit from formal training, and if so, what type of training is best? This study used a pre-/posttest design to evaluate the efficacy of training and generalization of(More)
The effect of feedback and materials on perceptual learning was examined in listeners with normal hearing who were exposed to cochlear implant simulations. Generalization was most robust when feedback paired the spectrally degraded sentences with their written transcriptions, promoting mapping between the degraded signal and its acoustic-phonetic(More)
OBJECTIVE The objective of this study was to assess whether training on speech processed with an eight-channel noise vocoder to simulate the output of a cochlear implant would produce transfer of auditory perceptual learning to the recognition of nonspeech environmental sounds, the identification of speaker gender, and the discrimination of talkers by(More)
A listener's ability to utilize indexical information in the speech signal can enhance their performance on a variety of speech perception tasks. It is unclear, however, whether such information plays a similar role for spectrally reduced speech signals, such as those experienced by individuals with cochlear implants. The present study compared the effects(More)
This study investigated the neural representation of naturally produced and noise vocoded speech signals in the auditory nerve of the chinchilla. The syllables [see text] produced by male speakers were used to synthesize noise vocoded speech stimuli containing one, two, three and four bands of envelope modulated noise. The ensemble response of the auditory(More)
Noise vocoded speech tokens produce temporal patterns in the ensemble response of the auditory nerve similar to those of their naturally produced counterparts [Loebach, J.L., Wickesberg, R.E., 2006. The representation of noise vocoded speech in the auditory nerve of the chinchilla: Physiological correlates for the perception of spectrally reduced speech.(More)
Listeners rapidly adapt to many forms of degraded speech. What level of information drives this adaptation, however, remains unresolved. The current study exposed listeners to sinewave-vocoded speech in one of three languages, which manipulated the type of information shared between the training languages (German, Mandarin, or English) and the testing(More)
We would like to Luis Hernandez for providing technical assistance and advice in the design and implementation of the experimental procedures. Abstract. Phonological Fusion is a phenomenon in which different phonemes are presented to each ear, prompting the listener to perceive a blend of the two (e.g., /ba/+/la/=/bla/). The present study assessed whether(More)
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