The studies involving two blind adults evaluated a new system-- Trigemina--that relates visual information to blind persons by tactile stimulation through a matrix of 10 x 10 vibrating rods applied to a postage stamp-sized area of skin over the forehead. (Author/SBH)

The study demonstrates that, with a brief training period, deaf adolescents (N=8) can attain a high level of perceptual performance with a tactual speech system in discrimination of certain hard to lipread word pairs pronounced by both a male and a female speaker. (Author/SBH)

A remotely activated tactual communication aid is described, and results obtained from tests with the aid on five normal hearing young adults and five profoundly hearing impaired children (8 to 14 years old) are reported. (SBH)

Four hearing Ss (20- to 30-years old) and 4 deaf Ss (8- to 14-years old) trained in speech discrimination using a vocoder (a device which converts speech into tactual vibrations received through the skin). Hearing Ss (artificially deafened by white noise transmitted through headphones) received from 20 to 80 hours of training in isolated words…

Behavioral and engineering tests were conducted in the field and laboratory to assess effectiveness and usefulness of the Vibralert, an electronic device for maintaining contact with deaf and deaf-blind children and adults. The vibrating portable signal system was used by 24 deaf and hearing parents to maintain contact with their deaf children at…

A study was initiated with 60 blind children (kindergarten through grade 2) in order to validate the order of a sequence of tactual discrimination tasks leading to the use of braille and the Optacon. Ss were tested with tasks designed for the readiness level (discrimination of large solid geometric shapes, flat puzzle pieces, embossed dot…

The use of a manual vibrator to supplement the traditional speech therapy program for four moderately mentally retarded six- and seven-year-old children attending a special education class is discussed. (Author/SEW)

THE FOLLOWING FOUR RESEARCH REPORTS ON ORIENTATION AND MOBILITY FOR THE BLIND BASED ON AURAL INFORMATION ARE CONTAINED IN THIS BULLETIN--"A PSYCHOACOUSTIC STUDY OF FACTORS AFFECTING HUMAN ECHOLOCATION" BY JOHN R. WELCH, "ORIENTATION BY AURAL CLUES" BY IVO KOHLER, "SONAR SYSTEM OF THE BLIND" BY WINTHROP N. KELLOGG, AND "TRIAL OF AN ACOUSTIC BLIND…

Articles report surveys and research studies as well as describe systems in educational technology. Areas treated include the following: multihandicapped blind and deaf blind children in California, by B. Lowenfeld; modern trends in mobility, by J.A. Leonard; factors in the definition of deafness as they relate to incidence and prevalence, by J.…