Savage Rumbaugh

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  • Created by: emma
  • Created on: 16-03-14 11:42
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  • Savage Rumbaugh
    • Aim
      • Study the language acquisition of 2 pygmy chimps compared to 2 common chimps
    • Method
      • Longitudinal case study focused on language development in pygmy chimps
      • At language research centre of Georgia state uni
      • Lasted 10 years but report on a 17 month period
        • From when kanzi was 30m - 47m
      • Could be quasi
        • IV the ape species
        • DV language acquisition
    • Procedure
      • Communication system
        • Indoors battery powered lexigram
          • Contain 256 geometrical shapes that light when touch
          • Kanzi's was attached to a voice synthesizer as he understood spoken english
        • Outdoors a pointing board was used
          • Sherman and austins hand movements were to broad for this
        • Sherman and Austin introduced to lexigram in a training setting
          • Kanzi and mulika introduced in an observational setting
      • Kanzi and mulika rearing environment similar to austin and sherman
        • Attachment to caretakers, exposure to human speech, gestures, photographs, formal tests, discipline
      • outdoor environment
        • 55 acre forest in which food items were placed in 17 named locations
          • Food not available in lab in warmer months
          • Had to travel during day with a human companion to obtain it
      • Indoor enrivonment
        • Kanzi and Mulika asked to help in activities e.g. making bed
        • Games toys videos available for chimps to use
        • Humans on hand to interact with them
      • Data measurements
        • Records of K's language development from 2 1/2 years through 17month period
          • Records for M from 11- 21 monthd
        • Classification
          • Correct
          • Incorrect
          • Spontaneous
          • Imitated
          • Structured
        • Controls
          • 4.5 hours of video tape
          • 2 observers , one scoring in real time compared to one scoring from video footage
        • Formal test
          • Spoken word to photograph
          • Spoken word to lexigram
          • Synthesised speech to lexigram
          • Photograph to lexigram
      • Language acquisition criteria
        • used spontaneously 9 out of 10 times
        • followed by behavioural conformation 9 out of 10 times
    • Results
      • Kanzi
        • 30 month- orange, peanut
        • 31 month- ball, cherry
        • 32 month- jelly, melon
        • 33 month- trailer, milk
        • 34 month- key, tickle
      • Mulika
        • 17 month- milk
        • 20 month- key, t-room
        • 22 month- juice, water
        • 37 month- groom
    • Participants
      • Kanzi
        • Male Pygmy born in captivity
          • 4 at time of report and reared in a language using enviroment
        • First exposed to symbols, gestures, human speech at the age of 6 months
          • Watched his mother and keepers
        • Separated from mother at 2 1/2 years and developed a preference for human company
          • Observed spontaneously using lexigram he had seen his mother use
      • Mulika
        • 3 During reported period
        • At 4 months developed an eye infection
          • When returned preferred to spend time with humans was still attached to her mother
        • Didn't observe matata using lexigram
          • Observed Kanzi using the lexigram
      • Sherman and Austin
        • Common chimps included as a comparison
        • Taken part in earlier training
        • At time of report sherman was 9 austin was 10
        • Separated from mothers before coming to research centre

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