Christian Lorenzi

Voice onset time encoding in patients with left and right cochlear implants

Publisher: Ovid Technologies (Wolters Kluwer Health)

Date: 03-2004

DOI: 10.1097/00001756-200403220-00006

Abstract: Stop-consonant discrimination was investigated in normal-hearing listeners and cochlear-implanted patients (CIP) by recording auditory evoked potentials (AEPs) to /b epsilon/ and epsilon/ syllables. This study demonstrates that: (i) AEPs show time-locked components that mimic the temporal structure of the stimuli, indicating that both patients and control subjects encode those syllables according to the temporal cue (voice onset time) characterizing the voiced/voiceless contrast (ii) the side of implantation does not affect the general structure of AEPs and /b epsilon/- epsilon/ discrimination thresholds (measured separately with a psychophysical procedure) (iii) poor time-locking to the syllables' temporal structure is associated with poor discrimination. This suggests that EEG investigation of temporal-processing provides an objective index of speech perception in CIP and could be used in implanted children.

Temporal Envelope Processing in the Human Left and Right Auditory Cortices

Publisher: Oxford University Press (OUP)

Date: 28-03-2004

DOI: 10.1093/CERCOR/BHH033

École Normale Supérieure, Département D'Études Cognitives

Location: France

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MRC Institute Of Hearing Research - Scottish Section

Location: United Kingdom of Great Britain and Northern Ireland

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Université Paris Descartes

Location: France

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Université Lumière Lyon II

Location: France

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