Linda J. Ferrier

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The conversational skills of 18 individuals with fragile-X syndrome (FXS) were compared with those of two other matched groups with autism and Down syndrome. The FXS group used more eliciting forms in conversation than those with Down syndrome, and also used partial self-repetition more often than the other two groups. The Down syndrome group had more(More)
Recognition of the speech of severely dysarthric individuals requires a technique which is robust to extraordinary conditions of high variability and very little training data. A hidden Markov model approach to isolated word recognition is used in an attempt to automatically model the enormous variability of the speech, while signal preprocessing measures(More)
Children with motor problems often develop to be passive, presumably because of an inability to communicate and to control the environment. The Baby-Babble-Blanket (BBB), a pad with pressure switches linked to a Macintosh computer, was developed to meet this need. Lying on the pad, infants use head-rolling, leg-lifting and kicking to produce digitized(More)
Harriet J. Fell College of Computer Science Northeastern University Boston, Massachusetts 02115, USA Tel: +1-617-373-2198 Joel MacAuslan Karen Chenausky Speech Technology and Applied Research Lexington, Massachusetts 02173, USA Tel: +1-781-863-0310 Linda J. Ferrier Department of Speech Language Pathology and Audiology(More)
We have developed a multiple-switch-activated device with speech output for use by infants with severe speech and physical impairments. It is hoped that using this device for early intervention will provide these infants with a means of environmental control and communication with parents.
The visiBabble system processes infant vocalizations in real-time. It responds to the infant's syllable-like productions with brightly colored animations and records the acoustic-phonetic analysis. The system reinforces the production of syllabic utterances that are associated with later language and cognitive development. We report here on the development(More)
Previous research indicates that infant vocalizations are effective predictors of later articulation and language abilities (Locke, 1989, Menyuk, Liebergott, Shultz, Chesnick & Ferrier, 1991, Oller & Seibert 1988, Jensen, Boggild-Andersen, Schmidt, Ankerhus, Hansen, 1988). Intervention to encourage babbling activity in at-risk infants is frequently(More)