Visitors to the Language Research
Center (LRC) leave the city streets of Atlanta, Georgia and drive to a forested
area. There they begin to hear noises not typical of most environments. Located
on 55 acres with five miles of trails, the LRC was founded ten years ago by
Georgia State University and the Yerkes Regional Primate Research Center at
Emory University. Funded by the National Institute of Child Health & Human
Development, the Center is directed by Duane M. Rumbaugh, Ph.D. Its purpose
is to study language acquisition processes in great apes and humans and to
benefit persons with mental retardation by applying principles and intervention
strategies learned. Currently 11 great apes live at LRC and 40 people work
there.
You can talk to these animals.
Many have communication boards and interact using signs and by pointing to
abstract symbols. Some use voice output communication aids (VOCAs), i.e.,
SuperWolf.* For example, Kanzi, a pygmy chimpanzee, asked your ACN
publisher to chase him and had your publisher acting just like a monkey.
Currently four major areas of investigation are underway at LRC.
A. Language Acquisition in the
Chimpanzee. Principal Investigator, Sue Savage-Rumbaugh, Ph.D.; Co-investigator,
Rose A. Sevcik. This project considers how non-human primates learn symbols.
Among the things learned about chimps abilities are:
· Chimps
learn abstract symbols and use them to communicate.
· Chimps
learn to use symbols during natural interaction with their caregivers.
· Speech
synthesis is an effective strategy during human/chimp interactions.
· Chimps
use symbols to interact with other chimps.
Results also have shown the acquisition
of a symbolic communication system was easier for Kanzi, a pygmy chimpanzee
than for Sherman and Austin, two common chimpanzees. Kanzi had a capacity
for the comprehension of speech, while Sherman and Austin did not.
B. Georgia State Mental
Retardation Project. Principal Investigator, Mary Ann Romski, Ph.D.
Co-Investigator, Rose A. Sevcik. This project adapts findings from the
non-human primate research and studies how non-speaking persons with mental
retardation learn symbols and how technology can facilitate growth in the
comprehension and expression of language and interaction. Work is carried
out in the homes and schools of students with moderate and severe mental retardation
who are enrolled in Clayton County schools. Articles summarizing results of
this project are:
Sevcik, R.A., Romski, M.A. &
Wilkinson, K. (1991). AAC symbols: Their roles in communication acquisition
for persons with severe cognitive disabilities. Augmentative and Alternative
Communication, 7, 1-10.
Romski, M.A., & Sevcik, R.
A. (1991). Augmenting language development in children with severe mental
retardation. In S. Warren & J. Reichle (Eds.), Causes and effects of
communication and language intervention. Baltimore, MD: Paul Brookes.
Molfese, D., Morris, R., &
Romski, M.A. (1990). Semantic discrimination in nonspeaking youngsters
with moderate or severe retardation: Electrophysiological correlates.
Brain and Language, 38, 61-74.
Romski, M. A., Sevcik, R. A., Reumann,
R., & Pate, J.L. (1989). Youngsters with moderate or severe retardation
and severe spoken language impairments I: Extant Communicative patterns. JSHD,
54, 66-373.
Outgrowths of this work are:
A. Project FACTT (Facilitating
Augmentative Communication Through Technology). Co-Directors, Mary Ann
Romski, Ph.D. and Vicki Collier. A joint project with Clayton County Schools,
FACTT provides augmented language services to school-age children with moderate
and severe mental retardation. Implementation practices are based on these
principles:
1.Augmented language learning can
occur during natural communicative interaction between children and their
partners.
2. For at least some children,
comprehension may play a critical role in the augmented language learning
process.
3. Electronic speech output devices
may provide an interface between a child and the auditory world
4. Integration of an electronic
speech output device within the child's natural extant communication skills
facilitates a multimodal system for communication
- Augmented language learning provides
the child with an entry point to related symbolic skills.
FACTT services extend beyond the
school program to ensure transition to supported employment, family and community
settings.
B. Georgia AAC Technical Assistance
Project. Kim Hartsell, Project Manager; Mary Ann Romski, Consultant.
A cooperative effort among the State Department of Education, the Clayton County
schools and the LRC, this project is designed to give technical assistance in
the area of AAC throughout Georgia's schools.
The principal investigators of the
LRC serve as faculty in the Biology, Communication and Psychology Departments
at Georgia State University. An AAC course is available to graduate students.
Opportunities for stipends are available for research assistants who specialize
in the area of language development.