Search Results - "Kreft, Heather A."

Mammalian behavior and physiology converge to confirm sharper cochlear tuning in humans by Sumner, Christian J., Wells, Toby T., Bergevin, Christopher, Sollini, Joseph, Kreft, Heather A., Palmer, Alan R., Oxenham, Andrew J., Shera, Christopher A.

“…Frequency analysis of sound by the cochlea is the most fundamental property of the auditory system. Despite its importance, the resolution of this frequency…”
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Speech perception in tones and noise via cochlear implants reveals influence of spectral resolution on temporal processing by Oxenham, Andrew J, Kreft, Heather A

“…Under normal conditions, human speech is remarkably robust to degradation by noise and other distortions. However, people with hearing loss, including those…”
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The role of cochlear place coding in the perception of frequency modulation by Whiteford, Kelly L, Kreft, Heather A, Oxenham, Andrew J

“…Natural sounds convey information via frequency and amplitude modulations (FM and AM). Humans are acutely sensitive to the slow rates of FM that are crucial…”
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Assessing the Role of Place and Timing Cues in Coding Frequency and Amplitude Modulation as a Function of Age by Whiteford, Kelly L., Kreft, Heather A., Oxenham, Andrew J.

“…Natural sounds can be characterized by their fluctuations in amplitude and frequency. Ageing may affect sensitivity to some forms of fluctuations more than…”
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Auditory enhancement under simultaneous masking in normal-hearing and hearing-impaired listeners by Kreft, Heather A., Wojtczak, Magdalena, Oxenham, Andrew J.

“…Auditory enhancement, where a target sound within a masker is rendered more audible by the prior presentation of the masker alone, may play an important role…”
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Auditory Enhancement in Cochlear-Implant Users Under Simultaneous and Forward Masking by Kreft, Heather A., Oxenham, Andrew J.

“…Auditory enhancement is the phenomenon whereby the salience or detectability of a target sound within a masker is enhanced by the prior presentation of the…”
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Place-pitch discrimination of single- versus dual-electrode stimuli by cochlear implant users by Donaldson, Gail S., Kreft, Heather A., Litvak, Leonid

“…Simultaneous or near-simultaneous activation of adjacent cochlear implant electrodes can produce pitch percepts intermediate to those produced by each…”
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Comparing Rapid and Traditional Forward-Masked Spatial Tuning Curves in Cochlear-Implant Users by Kreft, Heather A., DeVries, Lindsay A., Arenberg, Julie G., Oxenham, Andrew J.

“…A rapid forward-masked spatial tuning curve measurement procedure, based on Bekesy tracking, was adapted and evaluated for use with cochlear implants. Twelve…”
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A Fast Method for Measuring Psychophysical Thresholds Across the Cochlear Implant Array by Bierer, Julie A., Bierer, Steven M., Kreft, Heather A., Oxenham, Andrew J.

“…A rapid threshold measurement procedure, based on Bekesy tracking, is proposed and evaluated for use with cochlear implants (CIs). Fifteen postlingually…”
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The search for correlates of age-related cochlear synaptopathy: Measures of temporal envelope processing and spatial release from speech-on-speech masking by Patro, Chhayakanta, Kreft, Heather A., Wojtczak, Magdalena

“…•Psychophysical and electrophysiological measures of temporal envelope processing are not correlated with each other for listeners with normal and near-normal…”
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Auditory enhancement in younger and older listeners with normal and impaired hearinga by Kreft, Heather A., Oxenham, Andrew J.

“…Auditory enhancement is a spectral contrast aftereffect that can facilitate the detection of novel events in an ongoing background. A single-interval paradigm…”
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Cognitive factors contribute to speech perception in cochlear-implant users and age-matched normal-hearing listeners under vocoded conditions by O'Neill, Erin R., Kreft, Heather A., Oxenham, Andrew J.

“…This study examined the contribution of perceptual and cognitive factors to speech-perception abilities in cochlear-implant (CI) users. Thirty CI users were…”
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Central auditory masking by an illusory tone by Plack, Christopher J, Oxenham, Andrew J, Kreft, Heather A, Carlyon, Robert P

“…Many natural sounds fluctuate over time. The detectability of sounds in a sequence can be reduced by prior stimulation in a process known as forward masking…”
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Effects of Vowel Context on the Recognition of Initial and Medial Consonants by Cochlear Implant Users by Donaldson, Gail S, Kreft, Heather A

“…OBJECTIVE:Scores on consonant-recognition tests are widely used as an index of speech-perception ability in cochlear implant (CI) users. The consonant stimuli…”
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Role of semantic context and talker variability in speech perception of cochlear-implant users and normal-hearing listeners by O'Neill, Erin R., Parke, Morgan N., Kreft, Heather A., Oxenham, Andrew J.

“…This study assessed the impact of semantic context and talker variability on speech perception by cochlear-implant (CI) users and compared their overall…”
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Auditory enhancement under forward masking in normal-hearing and hearing-impaired listeners by Kreft, Heather A., Oxenham, Andrew J.

“…A target within a spectrally notched masker can be enhanced by a preceding copy of the masker. Enhancement can also increase the effectiveness of the target as…”
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Development and Validation of Sentences without Semantic Context to Complement the Basic English Lexicon Sentences by O'Neill, Erin R, Parke, Morgan N, Kreft, Heather A, Oxenham, Andrew J

“…Purpose: The goal of this study was to develop and validate a new corpus of sentences without semantic context to facilitate research aimed at isolating the…”
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A Dynamically Focusing Cochlear Implant Strategy Can Improve Vowel Identification in Noise by Arenberg, Julie G., Parkinson, Wendy S., Litvak, Leonid, Chen, Chen, Kreft, Heather A., Oxenham, Andrew J.

“…OBJECTIVES:The standard, monopolar (MP) electrode configuration used in commercially available cochlear implants (CI) creates a broad electrical field, which…”
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Speech intelligibility is best predicted by intensity, not cochlea-scaled entropy by Oxenham, Andrew J., Boucher, Jeffrey E., Kreft, Heather A.

“…Cochlea-scaled entropy (CSE) is a measure of spectro-temporal change that has been reported to predict the contribution of speech segments to overall…”
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Speech Perception with Spectrally Non-overlapping Maskers as Measure of Spectral Resolution in Cochlear Implant Users by O’Neill, Erin R., Kreft, Heather A., Oxenham, Andrew J.

“…Poor spectral resolution contributes to the difficulties experienced by cochlear implant (CI) users when listening to speech in noise. However, correlations…”
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