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J Comp Psychol. 2006 May;120(2):163-6.

Self-control and tool use in tufted capuchin monkeys (Cebus apella).

Author information

1
Alpha Genesis, Inc., Yemassee, SC 29945, USA. taevans79@yahoo.com

Abstract

Self-control is defined as forgoing immediate gratification to obtain a greater reward. Tool use may relate to self-control because both behaviors may require foresight and deliberate control over one's actions. The authors assessed 20 capuchin monkeys (Cebus apella) for the ability to delay gratification in a tool task. Subjects were given rod-shaped food items that could either be consumed immediately or be carried to an apparatus and used to extract a more preferred food. The authors found that some monkeys were able to exhibit self-control. Monkeys with relatively more tool use experience demonstrated the greatest levels of self-control. These results indicate that capuchins are capable of delaying gratification when a higher quality reinforcer is present and that tool experience can influence levels of self-control in this task.

PMID:
16719595
DOI:
10.1037/0735-7036.120.2.163
[Indexed for MEDLINE]

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