Cognitive testing of primates in zoos is becoming increasingly common. Cognition experiments are generally thought to be beneficial as they provide participants with an opportunity to engage in species-specific cognitive functioning, perhaps more so than with traditional forms of environmental enrichment. However, testing may increase competition and aggression between conspecifics if it has monopolizable features or creates social tension within groups. The purpose of this study was to monitor the social behavior of a bachelor mandrill (Mandrillus sphinx) dyad participating in a touchscreen-mediated cognition study. The mandrills' behavior was monitored before and after testing sessions for 8 months. Positive changes in the mandrills' affiliative behavior were observed. Rates of play, presentations, and silent bared-teeth face increased posttesting. No change in rates of agonism were observed between pre- and posttesting conditions. The observed positive changes in affiliative behavior suggest cognitive testing was enriching for the mandrills and participating in testing improved their welfare. Zoos beginning cognitive studies should monitor participant behavior to ensure their welfare is not compromised and is, ideally, enhanced.

中文翻译：

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监测参与触摸屏介导的认知测试的单身山魈（ Mandrillus sphinx ）二元组的社会行为

在动物园中对灵长类动物进行认知测试正变得越来越普遍。认知实验通常被认为是有益的，因为它们为参与者提供了参与物种特定认知功能的机会，这可能比传统形式的环境丰富更多。然而，如果测试具有可垄断的特征或在群体内造成社会紧张，则测试可能会增加同种之间的竞争和侵略。本研究的目的是监测参与触摸屏介导的认知研究的单身山魈（Mandrillus sphinx）二元组的社会行为。山魈的行为在测试之前和之后进行了 8 个月的监测。观察到山魈从属行为的积极变化。播放率，演示文稿，和沉默的露齿脸增加了后测。在测试前和测试后条件之间没有观察到激动率的变化。观察到的从属行为的积极变化表明认知测试丰富了山魈，参与测试改善了他们的福利。开始认知研究的动物园应该监控参与者的行为，以确保他们的福利不会受到损害，并且在理想情况下会得到加强。