老鼠追求食物和休,遵循相同的理性原则
Raegan S Logue1, Ana K Garcia1, Brissa A Bejarano1
1Department of Psychology, University of California, Los Angeles, CA 90095.
概括
鼠通过根据旅行成本调整食时间来平衡食物和非食物奖励. 他们的决定显示出理性的原则,适应需求和消费.
科学领域:
- 动物行为 动物行为
- 认知科学 认知科学
- 神经科学是一个神经科学.
背景情况:
- 动物平衡生存的多个目标,但实验室研究往往侧重于单一的目标.
- 了解动物决策中的多目标优化至关重要.
研究的目的:
- 为了研究老鼠如何平衡追求食物和非食物奖励.
- 在多目标食任务中检查决策策略.
主要方法:
- 为老鼠开发了一种以种族学为灵感的自由选择的补丁食任务.
- 在食品和非食品奖励补丁之间操纵的旅行时间成本.
- 观察到的时间分配,停留时间和腹感的影响.
主要成果:
- 鼠类在食物和非食物区域都花费了大量时间,对食物有轻微的偏好.
- 增加的旅行费用导致了两个奖励类型的更长的补丁居住时间.
- 老鼠最初对非食品奖励有偏好,但随着时间的推移,这种偏好反转了.
- 补丁停留时间受和最近消费的影响.
结论:
- 鼠使用理性原则来平衡竞争目标,类似于理论食模型.
- 食品和非食品奖励的决策过程共享了潜在的理性机制.
- 时间分配策略是动态的,并响应内部状态和外部成本.
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