The Mind of An Ape - Language Suitable For An Ape

Language Suitable For An Ape

Further information: Great ape language

The language designed by Premack for an ape was not verbal; Premack's chimpanzee program differed from that of a separate research program in which other chimpanzees were raised in a human family in parallel with human babies, and taught words. Eventually, the chimpanzees might get to a two-year-old human's list of words, but no further. Vicki was eventually trained to speak four words. The experiments with those chimpanzees did not demonstrate the existence of the faculties shown by Sarah discussed below, in her command of a language, for example. In other experiments, other chimpanzees have been taught American Sign Language (ASL), notably Washoe. Washoe could use 68 gestures after three years of training, eventually getting to 150 gestures. However, Nim, trained in ASL, was found to demonstrate no forms with grammar, his linguistic productions being sets of gestures in no particular order. Koko and Chantek were also trained in ASL. See also Kanzi's 400-word vocabulary of spontaneous productions as of 2005.

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