Chimps were kept in a naturalisitc outdoor environment and an indoor reasearch centre.
The forest was 55 acres with 17 food places around the forest. Kanxi communicated about food in a forest in a backpack with lexigrams.
To communicate the experimentor used lexigrams as a visual that the chimps could point at to reply. They also had a voice synthesiser that was connected to a keyboard of symbols. They weren't trained, they learn't how to do these things from watching other people and their mother, mutata.
Sherman and Austin were trained and were not able to understand the synsthesiser.
Data was recored via blind experimenters who Kanzi was told to take to various places. There was also real time and recorded videop tapes. - researchers coded these to see if there was any spontaneous language.
There was also formal tests at the end which involved testing all the words of their vocabulary whilst avoiding cues. They were also asked to correctly match lexigrams to photographs to prove they knew what they were.
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