کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10464047 925456 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Capuchin monkeys (Cebus apella) fail to show inequality aversion in a no-cost situation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Capuchin monkeys (Cebus apella) fail to show inequality aversion in a no-cost situation
چکیده انگلیسی
Although humans show robust equality concerns across a variety of situations, there is ongoing debate regarding the extent to which any nonhuman species is inequality averse. In the current research, we test nonhuman primates' reactions to conspecifics receiving equal and unequal payoffs using a “no-cost” method in which subjects can respond to inequality without rejecting food. Specifically, we gave capuchin monkeys (Cebus apella) the opportunity to trade with one of two experimenters, each of whom offered the subject an identical reward, but had different histories of trading with the subject and a conspecific partner. An “equal” experimenter had previously given a conspecific the same reward that the subject had received, whereas the other experimenter was either an “advantageous trader” for the subject (giving the conspecific an inferior reward) or a “disadvantageous trader” for the subject (giving the conspecific a superior reward). By offering subjects a choice between experimenters, we removed several competing demands that may have masked the expression of robust equality preferences in previous studies. Even though there was no cost associated with expressing an equality preference, we found no evidence that capuchins differentiated between equal and unequal experimenters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Evolution and Human Behavior - Volume 35, Issue 2, March 2014, Pages 80-88
نویسندگان
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