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The Influence Of Task Specific Factors On Quantity Discrimination By Brown Capuchins (Cebus Apella) And Squirrel Monkeys (Saimiri Sciureus), Alison Rose Billas
The Influence Of Task Specific Factors On Quantity Discrimination By Brown Capuchins (Cebus Apella) And Squirrel Monkeys (Saimiri Sciureus), Alison Rose Billas
Honors Theses
Previous studies have revealed that non-human primates discriminate quantities. However, their performance is highly variable both within and between species. Discrepancies in performance may be the result of a variety of factors, including species-specific cognitive differences or task specific factors such as representational format of the choice stimuli, motivation to perform that task, or tolerance for task delays. Six brown capuchin monkeys (Cebus apella) and six squirrel monkeys (Saimiri sciureus) were presented with two numerical quantities in three different conditions, replicating Schmitt and Fischer's (2011) study with baboons and macaques. Primates were rewarded with a quantity of food corresponding in …