ERIC Number: EJ778919
Record Type: Journal
Publication Date: 2007-Nov
Reference Count: 0
Performance in a Computerized Self-Control Task by Rhesus Macaques ("Macaca Mulatta"): The Combined Influence of Effort and Delay
Evans, Theodore A.
Learning and Motivation, v38 n4 p342-357 Nov 2007
The variables of delay and effort have been found to influence self-control predictably and in similar fashion when tested independently, but it is unclear how they influence self-control interactively. In the present study, I tested these two variables simultaneously to gain better understanding of their combined influence on self-control. A computerized task was employed in which monkey participants could sequence 1 or more digital images before "cashing-out," after which they would receive their accumulated rewards. Delay was manipulated by adjusting the speed of the cursor used to select images. Cognitive effort was manipulated by presenting image sets that appeared in either a constant or a randomized configuration. For most monkeys, an interaction was found between the effects of delay and effort on the number of images selected before cashing-out. The results suggest that, when combined, these two variables have a complex influence on self-control.
Descriptors: Self Control, Animals, Rewards, Task Analysis, Cognitive Processes, Visual Stimuli, Computers
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Sponsor: National Inst. of Child Health and Human Development (NIH), Bethesda, MD.
Authoring Institution: N/A