Abstract
This paper will present the results of the first year of a 3-year study designed to compare the effects of a 2-channel (Tactaid II) and a 16-channel (Tacticon) aid on expressive and receptive communication skills of deaf-blind children. The Tactaid vibrators are worn on the wrist and the Tacticon is worn as a belt of electrical stimulators on the abdomen. Six children, ranging in age from 22 months to 18 years, from the San Francisco Bay area are participating in the study. A total of three communicative behaviors will be selected for each child (e.g., number of purposeful vocalizations). A single-subject design will be used to compare their communication behaviors in three experimental conditions—no device (control), 2-channel device, and 16-channel device. Only one behavior will be observed at a time, resulting in three separate sub-studies per child. This paper will present the results of Sub-Study ♯1. Despite the tactile defensiveness often exhibited by deaf-blind children, the partipants have been tolerating both devices. [This research is being supported by U.S. Dept. of Educ. Grant ♯G008630416.]
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