动物如何衡量关于奖励来源的相互矛盾信息随着时间的推移? 将动态平均模型进行比较
Jack Van Allsburg1, Timothy A Shahan2
1Department of Psychology, Utah State University, Logan, Utah, USA. jack.vanallsburg@usu.edu.
Animal cognition
|March 1, 2024
概括
动物表现出自发的选择恢复,在休息后恢复到旧的奖励记忆. 然而,目前的模型并不能完全解释大鼠的食行为.
科学领域:
- 行为神经科学 行为神经科学
- 动物认知动物的认知能力.
背景情况:
- 最佳食理论假设动物最大限度地摄取食物.
- 追踪行为替代品和选择的机制仍然不清楚.
- 选择的自发恢复,过去的奖励分布在休息后影响当前行为,是关键现象.
研究的目的:
- 为了研究老鼠选择自发恢复.
- 为了比较不同的动物决策计算模型的预测准确度.
- 测试老鼠如何整合过去和最近的奖励信息.
主要方法:
- 三个自由操作的实验使用连续反转设计在老鼠.
- 使用并行可变间隔时间表来诱导两个响应 (A和B).
- 在测试没有奖励的选择偏好之前,引入了一个延迟期.
主要成果:
- 数据强烈支持选择自发恢复的发生.
- 观察到的恢复形式和程度与经过测试的计算模型不一致.
- 老鼠表现出基于更遥远的过去奖励分布的行为分配的回归.
结论:
- 选择的自发恢复在老鼠中是一个强大的现象.
- 现有的计算模型,包括指数加权移动平均线和时间加权规则,无法完全解释观察到的恢复.
- 需要进一步的研究来完善食模型中的决策规则和估值功能.
相关概念视频
Decision Making: P-value Method
5.3K
The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim is also stated. These statements can act as null and alternative hypotheses: a null hypothesis would be a neutral statement while the alternative hypothesis can...
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim is also stated. These statements can act as null and alternative hypotheses: a null hypothesis would be a neutral statement while the alternative hypothesis can...
5.3K
Decision Making: Traditional Method
4.0K
The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
4.0K
Timing and Consequences on Behavior
90
In operant conditioning, the timing of reinforcement is crucial. For animals like rats and cats, immediate reinforcement (within a few seconds) is much more effective than delayed reinforcement. For example, a food reward for a rat needs to follow within 30 seconds of pressing a bar to be effective.
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
90
Instinctive Drift
218
Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...
218
Decision Making
109
Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
Automatic decision-making is fast, intuitive, and relies on gut feelings...
Automatic decision-making is fast, intuitive, and relies on gut feelings...
109
Reason and Intuition
6.4K
The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the...
6.4K


