Can an ape create a sentence?

Bibliographic Collection: 
MOCA Reference, APE
Publication Type: Journal Article
Authors: Terrace, H S; Petitto, L A; Sanders, R J; Bever, T G
Year of Publication: 1979
Journal: Science
Volume: 206
Issue: 4421
Pagination: 891-902
Date Published: 1979 Nov 23
Publication Language: eng
ISSN: 0036-8075
Keywords: Animal communication, Animals, Humans, Language Development, Male, Pan troglodytes, Semantics, Sign language, Time Factors

More than 19,000 multisign utterances of an infant chimpanzee (Nim) were analyzed for syntactic and semantic regularities. Lexical regularities were observed in the case of two-sign combinations: particular signs (for example, more) tended to occur in a particular position. These regularities could not be attributed to memorization or to position habits, suggesting that they were structurally constrained. That conclusion, however, was invalidated by videotape analyses, which showed that most of Nim's utterances were prompted by his teacher's prior utterance, and that Nim interrupted his teachers to a much larger extent than a child interrupts an adult's speech. Signed utterances of other apes (as shown on films) revealed similar non-human patterns of discourse.

Alternate Journal: Science
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