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Sibilants

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Full-Text Articles in Speech and Hearing Science

An Investigation Of The Relation Between Sibilant Production And Somatosensory And Auditory Acuity, Satrajit Ghosh, Melanie Matthies, Edwin Maas, Mark Tiede, Lucie Ménard, Frank Guenther, Harlan Lane, Joseph Perkell Feb 2011

An Investigation Of The Relation Between Sibilant Production And Somatosensory And Auditory Acuity, Satrajit Ghosh, Melanie Matthies, Edwin Maas, Mark Tiede, Lucie Ménard, Frank Guenther, Harlan Lane, Joseph Perkell

Harlan Lane

The relation between auditory acuity, somatosensory acuity and the magnitude of produced sibilant contrast was investigated with data from 18 participants. To measure auditory acuity, stimuli from a synthetic sibilant continuum ([s]-[ʃ]) were used in a four-interval, two-alternative forced choice adaptive-staircase discrimination task. To measure somatosensory acuity, small plastic domes with grooves of different spacing were pressed against each participant's tongue tip and the participant was asked to identify one of four possible orientations of the grooves. Sibilant contrast magnitudes were estimated from productions of the words "said," "shed," "sid," and "shid." Multiple linear regression revealed a significant relation indicating …


A Preliminary Study Of The Effects Of Cochlear Implants On The Production Of Sibilants, Melanie L. Matthies, Mario A. Svirsky, Harlan L. Lane, Joseph S. Perkell Feb 2011

A Preliminary Study Of The Effects Of Cochlear Implants On The Production Of Sibilants, Melanie L. Matthies, Mario A. Svirsky, Harlan L. Lane, Joseph S. Perkell

Harlan Lane

The potential influence of auditory information in the production of /s/ and /ʃ/ was explored for postlingually deafened adults with four-channel Ineraid cochlear implants. Analyses of the spectra of the sibilant sounds were compared for speech obtained prior to implant activation, after early implant use and after 6 months of use. In addition, the output of the Ineraid device (measured at each of the four electrodes) was analyzed with pre- and postactivation speech samples to explore whether the speech production changes were potentially audible to the cochlear-implant user. Results indicated that subjects who showed abnormally low or incorrect contrast between …