Apes And Language
Apes and Language:
A Review of the Literature
Over the past thirty years, researchers have
demonstrated that the great apes (chimpanzees, gorillas,
and orangutans) resemble humans in language abilities
more than had been thought possible. Just how far
that resemblance extends, however, has been a matter of
some controversy. Researchers agree that the apes have
acquired fairly large vocabularies in American Sign
Language and in artificial languages, but they have
drawn quite different conclusions in addressing the
following questions:
1. How spontaneously have apes used language?
2. How creatively have apes used language?
3. Can apes create sentences?
4. What are the implications of the ape language
studies?
This review of the literature on apes and language focuses
on these four questions.
How Spontaneously Have
Apes Used Language?
In an influential article, Terrace, Petitto,
Sanders, and Bever (1979) argued that the apes in language
experiments were not using language spontaneously
but were merely imitating their trainers, responding to
conscious or unconscious cues. Terrace and his colleagues
at Columbia University had trained a chimpanzee,
Nim, in American Sign Language, so their skepticism
about the apes’ abilities received much
attention. In fact, funding for ape language research
was sharply reduced following publication of their 1979
article “Can an Ape Create a Sentence?”
In retrospect, the conclusions of Terrace et al.
seem to have been premature. Although some early
Full title,
centered.
The writer
sets up her
organization in
the introduction.
A signal phrase
names all four
authors and
gives date in
parentheses.
Headings, centered,
...
View Full Essay