Effects of food preferences on token exchange and behavioural responses to inequality in tufted capuchin monkeys, Cebus apella
Effects of food preferences on token exchange and behavioural responses to inequality in tufted capuchin monkeys, Cebus apella
复制标题
DOI：
10.1016/j.anbehav.2007.01.015
复制
发表时间：
2007-09-01
期刊：
影响因子：
2.5
通讯作者：
Miller, R. W.
中科院分区：
文献类型：
--
作者：
Fontenot, M. B.;Watson, S. L.;Miller, R. W.
我们研究了在何种程度上，女性卷尾猴表现出“厌恶不公平的工作努力”的猴子提供的机会，从事令牌交换任务，以赚取首选（葡萄）或非首选（燕麦麦片）的食物项目。在实验1中，猴子与合作伙伴配对，要求双方交换令牌（工作努力），以获得首选或非首选的食物奖励。然后，将受试者的交换行为与合作伙伴因没有工作努力而获得食物奖励的条件进行比较。我们没有发现任何证据表明，不同的工作努力影响的百分比不完整的交流。此外，卷尾猴更迅速地完成了对首选食物的交换，无论合作伙伴的工作努力如何。在实验2中，我们评估，在没有差异的工作努力，猴子的行为反应，以接收的首选或非首选的食物的条件下，他们的合作伙伴收到相同或不同的食物。将这些条件与对照条件进行比较，其中将相同或不同的食物放置在相邻的空笼中。卷尾猴不太可能接受不喜欢的食物，并且比喜欢的食物消耗得更慢。我们没有发现任何证据表明，在不平等的条件下，伴侣的存在会影响对非首选食物的接受或消费。总的来说，我们没有发现任何迹象表明卷尾猴能够评估合作伙伴的相对工作努力或食物奖励的不公平性，因此不太可能拥有“对不平等的厌恶”。(C)2007年，动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
We examined the extent to which female capuchin monkeys show an ` aversion to inequitable work effort' by providing the monkeys with the opportunity to engage in token exchange tasks to earn either a preferred ( grape) or nonpreferred ( oat cereal) food item. In experiment 1, monkeys were paired with partners such that both were required to exchange a token ( work effort) for either a preferred or nonpreferred food reward. The subject's exchange behaviour was then compared to conditions in which the partner received the food reward for no work effort. We found no evidence that differential work effort influenced the percentage of incomplete exchanges. Furthermore, capuchins completed exchanges more rapidly for the preferred food item, regardless of the work effort of the partner. In experiment 2, we evaluated, in the absence of differential work effort, behavioural responses of monkeys to receipt of a preferred or nonpreferred food in conditions where their partner received either the same or different food. These conditions were compared to control conditions where either the same or different food was placed in an adjacent empty cage. Capuchins were less likely to accept nonpreferred food and consumed it more slowly than preferred food. We found no evidence that the presence of a partner influenced acceptance or consumption of the nonpreferred food under inequitable conditions. Overall, we found no indication that capuchins are able to evaluate either the relative work effort of a partner or the inequity of a food reward and are thus unlikely to possess an ` aversion to inequity'. (C) 2007 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.