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Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Colour versus quantity as cues in reverse-reward-competent squirrel monkeys (Saimiri sciureus)
Author(s): Anderson, James
Awazu, Shunji
Fujita, Kazuo
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Keywords: Squirrel monkey
Individual differences
Animal behavior Research
Saimiri sciureus
Issue Date: Apr-2009
Date Deposited: 9-Oct-2009
Citation: Anderson J, Awazu S & Fujita K (2009) Colour versus quantity as cues in reverse-reward-competent squirrel monkeys (Saimiri sciureus). Quarterly Journal of Experimental Psychology, 62 (4), pp. 673-680.
Abstract: To assess the relative salience of colour and quantity cues, squirrel monkeys previously trained to reach for the smaller of two quantities of food in a reverse-reward contingency task received colour discrimination training. After initial failure to discriminate between two colours of dots under a differential reinforcement regime, they learned the task when the S- colour was associated with zero reward. The monkeys then showed good retention on the original reverse-reward task of 1 versus 4 with pairs of dots presented in S+ or S- colours. However, on “mismatch” trials of 1S- versus 4S+ , only 2 of 4 monkeys tested showed a preference—1 monkey chose based on quantity, the other based on colour. Individual differences and the possible roles of overshadowing and blocking are discussed.
DOI Link: 10.1080/17470210802215186
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