2016
DOI: 10.1097/aud.0000000000000257
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Acoustic Cue Weighting by Adults with Cochlear Implants: A Mismatch Negativity Study

Abstract: Objectives Formant Rise Time (FRT) and Amplitude Rise Time (ART) are acoustic cues that inform phonetic identity. FRT represents the rate of transition of the formant(s) to a steady state, while ART represents the rate at which the sound reaches its peak amplitude. Normal hearing (NH) native English speakers weight FRT more than ART during the perceptual labeling of the /bα/-/wα/ contrast. This weighting strategy is reflected neurophysiologically in the magnitude of the mismatch negativity (MMN) – MMN is large… Show more

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Cited by 8 publications
(9 citation statements)
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“…Because the study population in this study participated in a clinical trial between baseline and retest measurements, they did get a chance to adapt to different speech cues and learn new auditory percepts. This perceptual learning could have potentially been used in the spectral and/or temporal discrimination tasks (Moberly et al 2015). On the other hand, speech scores were also assessed during this trial, for which no improvement was observed (F1,9=0.826, p=0.387).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Because the study population in this study participated in a clinical trial between baseline and retest measurements, they did get a chance to adapt to different speech cues and learn new auditory percepts. This perceptual learning could have potentially been used in the spectral and/or temporal discrimination tasks (Moberly et al 2015). On the other hand, speech scores were also assessed during this trial, for which no improvement was observed (F1,9=0.826, p=0.387).…”
Section: Discussionmentioning
confidence: 99%
“…It is plausible that this improvement is caused by 'perceptual learning', which is a process by which the ability of the auditory system to process stimuli is improved through experience. Also Moberly et al (2015) suggested that CI users could learn from new speech cues, which might be present in novel speech coding strategies. Repeated testing with the SMRT and MDT test in a research setting with multiple novel speech coding strategies could, therefore, lead to both task and perceptual learning and consequently to improved SMRT and MDT performance.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, the MMN reflects a preattentive auditory-evoked potential (AEP) that occurs 100–300 ms following sound onset and is characterized by a front-central negativity elicited during any acoustically discriminable “deviant” sound within a regular stream of “standard” stimuli (C.W. Ponton et al, 2000 ; Näätänen et al, 2007 ; Moberly et al, 2016 ). N1, P2, and MMN are believed to be potential candidates in developing models of auditory information processing.…”
Section: Introductionmentioning
confidence: 99%
“…The third aim is to investigate MMN in CI users with the increase of implantation time. MMN is thought to represent the brain’s response to a mismatch of the current stimulus representation and a trace in short- or long-term auditory memory ( Naatanen et al, 2011 ; Moberly et al, 2016 ). Nina Kraus et al (1993) studied MMN in nine postlingual adult CI users with/da/and/ta/.…”
Section: Introductionmentioning
confidence: 99%
“…Phonetic perception can be measured electrophysiologically as well (Moberly et al 2016), for individuals who cannot give behavioral responses (such as infants).…”
mentioning
confidence: 99%