Action-matching biases in monkeys (Sapajus spp.) in a stimulus-response compatibility task : evaluating experience-dependent malleability
MetadataShow full item record
Altmetrics Handle Statistics
Altmetrics DOI Statistics
Stimulus-response compatibility effects occur when observing certain stimuli facilitate the performance of a related response and interfere with performing an incompatible or different response. Using stimulus-response action pairings, this phenomenon has been used to study imitation effects in humans, and here we use a similar procedure to examine imitative biases in non-human primates. Eight capuchin monkeys (Sapajus spp.) were trained to perform hand and mouth actions in a stimulus-response compatibility task. Monkeys rewarded for performing a compatible action (i.e., using their hand or mouth to perform an action after observing an experimenter use the same effector) performed significantly better than those rewarded for incompatible actions (i.e., performing an action after observing an experimenter use the other effector), suggesting an initial bias for imitative action over an incompatible S-R pairing. After a predetermined number of trials, reward contingencies were reversed; i.e., monkeys initially rewarded for compatible responses were now rewarded for incompatible responses, and vice versa. In this second training stage no difference in performance was identified between monkeys rewarded for compatible or incompatible actions, suggesting any imitative biases were now absent. In a second experiment, two monkeys learned both compatible and incompatible reward contingencies in a series of learning reversals. Overall, no difference in performance ability could be attributed to the type of rule (compatible/incompatible) being rewarded. Together, these results suggest that monkeys exhibit a weak bias towards action copying, which (in line with findings from humans) can largely be eliminated through counter-imitative experience.
O'Sullivan , E P , Caldwell , C & Claidière , N 2017 , ' Action-matching biases in monkeys ( Sapajus spp. ) in a stimulus-response compatibility task : evaluating experience-dependent malleability ' , Journal of Comparative Psychology , vol. 131 , no. 4 , pp. 337-347 . https://doi.org/10.1037/com0000081
Journal of Comparative Psychology
Copyright © 2017 APA, all rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1037/com0000081
DescriptionEóin P. O’Sullivan was funded by a PhD studentship from the Department of Psychology, University of Stirling.
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.