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231.
In most experimental work on animal cognition, researchers attempt to control for multiple interacting variables by training subjects prior to testing, allowing subjects to participate voluntarily, and providing subjects with food rewards. However, do such methods encourage selection bias from subjects’ personalities? In this study, we trained eighteen zoo-housed capuchin monkeys (Sapajus apella) for two experiments, under conditions of positive reinforcement (i.e. food rewards) and free-choice participation. Using a combination of behavioral and rater-based methods, we identified and validated five personality dimensions in these capuchins (Assertiveness, Openness, Neuroticism, Sociability, and Attentiveness). Scores on Openness were positively related to individual differences in monkey task participation, reflecting previous work showing that such individuals are often more active, curious, and willing to engage in testing. We also found a negative relationship between scores on Assertiveness and performance on tasks, which may reflect the trade-offs between speed and accuracy in these animals’ decision-making. Highly Assertive individuals (the most sociable within monkey groups) may also prioritize social interactions over engaging in research. Lastly, monkeys that consistently participated and performed well on both tasks showed significantly higher Openness and lower Assertiveness compared to others, mirroring relationships found between personality, participation, and performance among all participants. Participation and performance during training was clearly biased toward individuals with particular personalities (i.e. high Openness, low Assertiveness). Results are discussed in light of the need for careful interpretation of comparative data on animal cognition and the need for researchers to take personality selection bias more seriously. 相似文献
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Abstract The purpose of this study was to examine the life experiences of six women with chronic illness who represent three differing life stages. The participants included two women who were in young adulthood, two who were between the ages of 40 and 60, and two women in their late 70s. The women were all diagnosed with multiple sclerosis, systemic lupus erythematosus, rheumatoid arthritis, osteoporosis, or a combination of these disorders. They were interviewed concerning the impact illness has had on their lives, the manner in which chronic illness has altered their self-perceptions, and the ways in which they have come to make meaning from the event. While the women had achieved varying levels of acceptance of their illness, it appeared that the ability to cope was dependent on numerous factors across several life circumstances. Distinctions were made regarding ability to either adjust to the illness or use the experience as a catalyst for personal growth. 相似文献
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为了探讨亲社会视频游戏对玩家人性化知觉的影响, 研究以大学生为被试, 通过两个实验, 分别采用自陈报告法和单类别内隐联想测验技术考察了亲社会视频游戏对玩家自我及他人外显及内隐人性化知觉的影响。结果发现:(1)相对于中性游戏, 不论是普遍人性, 还是独特人性, 亲社会视频游戏均可提高玩家对自我及他人外显的人性化知觉水平;(2)相对于中性游戏, 亲社会游戏可显著提高玩家对自我及他人独特人性的内隐知觉水平, 也可提升对自我普遍人性的内隐知觉水平, 但对他人普遍人性的内隐知觉的效应不明确。这些结果表明, 亲社会视频游戏对于提升玩家对自我和他人的人性化知觉水平具有重要作用。 相似文献
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为了考察中低功能自闭症儿童在动态条件下的多目标注意加工特点,研究采用多目标追踪实验范式,具体追踪任务采用多目标随机运动和碰撞反弹算法。实验设计为两因素混合设计,组间变量为年龄和性别匹配的中低功能自闭症和正常儿童组,组内变量为追踪目标数量(分别为1、2、3、4个目标),因变量为被试在多目标追踪任务中的追踪正确率和追踪容量。结果发现:(1)中低功能自闭症儿童在目标数量为1到目标数量为4时的正确率均明显低于正常儿童,且标准差变异较大,中低功能自闭症儿童的多目标的持续追踪能力和稳定性存在一定的缺陷;(2)当目标数量为1时,正常组儿童与中低功能自闭症儿童的追踪容量差异不显著;目标为2、3、4时,两组追踪容量差异均显著。不同目标数量情况下中低功能自闭症儿童平均的注意容量为0.83~1.24个(平均容量约为1个)明显低于正常儿童的0.95~3.72个(最大容量接近4个)。中低功能自闭症儿童在多目标追踪上表现为单焦点注意加工的特点,存在一定程度的注意转移缺陷。 相似文献