Lana chimpanzee learns to count by "NUMATH": a summary of a videotaped experimental report.

D. M. Rumbaugh, W. D. Hopkins, D. A. Washburn, E. S. Savage-Rumbaugh

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

This paper summarizes a videotaped presentation (Rumbaugh, Savage-Rumbaugh, Hopkins, Washburn, & Runfeldt, 1987) of computerized training programs whereby an adult female chimpanzee, Lana (Pan troglodytes), learned to use a joystick to remove from a screen the number of boxes appropriate to the value of a randomly selected Arabic numeral 1, 2, or 3. Initial training provided a variety of cues, both numeric and otherwise, to support correct performance. Across software programs, all cues other than numeric ones were deleted. In the final test, Lana was correct on over 80% of trials in which there was no residual feedback of intratrial events and where only her memory of those events could provide the cue to indicate that she had removed boxes in accordance with the value of the target numbers and should terminate the trial. The tape is narrated and consists of video recordings of Lana's performance on each software program.

Original languageEnglish (US)
Pages (from-to)459-470
Number of pages12
JournalThe Psychological record
Volume39
Issue number4
DOIs
StatePublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • General Psychology

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