| He will, for example, often employ the keyboard to request food for his mother and siblings who do not know the lexigrams. |
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| The difficult question is whether this behavior indicates that lexigrams function as symbols or names. |
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| Unlike them, she learned lexigrams independently of keyboard position. |
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| Their caretakers can converse with the bonobos using both lexigrams and spoken English simultaneously. |
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| Cohen watched Panbanisha match spoken words with lexigrams on a computer screen, and then they went out for a walk with a handler. |
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| Researchers then dutifully documented that chimps can interpret abstract lexigrams on keyboards and arrange them in meaningful sequences. |
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| Instructors could include others, such as pictograms SYMS and OAKLAN, PREMACK cards, lexigrams and several SIGSYM systems. |
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