Graeme Clark Collection

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Author: Cowan, Robert × Author: Sarant, Julia × End date: 1999 × Start date: 1990 × Type: Journal Item × Subject: otology × Subject: speech perception ×

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    Speech perception in children following habilitation with background noise [Abstract]
    Cowan, R. S. C. ; Klieve, S. ; Galvin, K. L. ; Sarant, J. Z. ; Clark, Graeme M. ( 1996)
    Recent evaluation of open-set work and sentence perception results for a group of children evaluated over a two year period showed that improvements to speech perception scores in poor signal-to-noise conditions were possible with use of the Speak speech processing strategy. The increases were noted particularly in speech perception in poor signal-to-noise conditions. However, overall scores were still lower that for hearing in quiet. As children are often in noisy environments, it was of interest to assess whether specific habilitation involving perception in controlled background noise could improve perception. A preliminary study evaluating perception of open-set words and sentences in background noise for four children has been completed. Each of the children was assessed over a six month period, using repeated assessments of connected discourse tracking, and word and sentence perception scores. At each assessment, measures were made both in quiet and in background noise. The specific signal-to-noise ration varied with each child, but was kept constant through the evaluation. During the six month period, children had weekly habilitation sessions, which included specific perceptual training in controlled background noise. Preliminary results indicate that training in ‘controlled noise’ can significantly improve speech perception results for this group of children.