Using a computerized testing system to investigate the preconceptual self in nonhuman primates and humans

Matthew J. Jorgensen, Stephen J. Suomi, William D. Hopkins

Research output: Chapter in Book/Report/Conference proceedingChapter

12 Scopus citations

Abstract

This chapter investigates the preconceptual self in nonhuman primates and humans using computerized testing system. The mark test clearly has been one of the most important tools used in the study of self-recognition. The chapter discusses procedures employed for investigating the antecedents of self-recognition in nonhuman primates. The results of preliminary experiments suggest that chimpanzees, young children, and adults are able to recognize which image they control on the computer screen. The capuchin monkeys, on the other hand, appear to be either unable to recognize which image they control or else are unable to properly use that knowledge to complete the task. The performance of the capuchins was most strongly affected by the efficiency of the computer-controlled image, which suggests that they may need more time in order to assess which image they control. The methods described provide a useful alternative means for assessing the preconceptual self in both humans and nonhumans. The competitive CHASE task requires the subjects to: 1) recognize which image they control; and 2) rapidly act upon that knowledge before the computer-controlled image (CCI) contacts the target first.

Original languageEnglish (US)
Title of host publicationAdvances in Psychology
Pages243-256
Number of pages14
EditionC
DOIs
StatePublished - Jan 1 1995
Externally publishedYes

Publication series

NameAdvances in Psychology
NumberC
Volume112
ISSN (Print)0166-4115

ASJC Scopus subject areas

  • General Psychology

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