Evolutionary pressures on primate intertemporal choice
Evolutionary pressures on primate intertemporal choice
复制标题
灵长类动物跨期选择的进化压力
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
J. Stevens
中科院分区：
文献类型：
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作者：
J. Stevens
从寻找食物到选择配偶，动物必须做出跨期选择，这些选择涉及在不同时间获得的健身益处。物种在等待延迟奖励的意愿上存在巨大差异。为什么物种之间存在这种差异？跨期选择的适应性方法表明，时间偏好应该反映物种环境中面临的时间问题。在这里，我使用系统发育回归测试是否异速生长的因素有关的身体大小，相对大脑的大小和社会群体的大小预测多久13灵长类动物物种将等待在实验室跨期选择任务。控制生育率，一个复合异速生长因子，包括身体质量，绝对大脑大小，寿命和家庭范围大小预测等待时间，但相对大脑大小和社会群体大小没有。这些发现支持了这样一种观点，即选择压力塑造了跨期选择，以解决动物面临的适应性问题。在大量物种中收集这些类型的数据可以为决策和认知的进化提供关键见解。
From finding food to choosing mates, animals must make intertemporal choices that involve fitness benefits available at different times. Species vary dramatically in their willingness to wait for delayed rewards. Why does this variation across species exist? An adaptive approach to intertemporal choice suggests that time preferences should reflect the temporal problems faced in a species's environment. Here, I use phylogenetic regression to test whether allometric factors relating to body size, relative brain size and social group size predict how long 13 primate species will wait in laboratory intertemporal choice tasks. Controlling for phylogeny, a composite allometric factor that includes body mass, absolute brain size, lifespan and home range size predicted waiting times, but relative brain size and social group size did not. These findings support the notion that selective pressures have sculpted intertemporal choices to solve adaptive problems faced by animals. Collecting these types of data across a large number of species can provide key insights into the evolution of decision making and cognition.
影响因子：
7.6
作者：
FUNDER, DC;BLOCK, J
通讯作者：
BLOCK, J