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相关概念视频

Retrieval01:12

Retrieval

115
Retrieval is the process of getting information out of memory storage and back into conscious awareness. This ability is essential for daily tasks like brushing hair and teeth, driving to work, and performing job duties. Retrieval occurs in three ways: recall, recognition, and relearning.
Recall involves accessing information without cues, such as during an essay test, where individuals must retrieve facts and concepts from memory unaided. Another example is remembering the name of a colleague...
115
Maximum Size of Aggregate01:12

Maximum Size of Aggregate

127
The maximum size of aggregate is defined as the aperture of the sieve retaining 15 percent or more of the particles present in the aggregate sample. The aggregate's maximum size impacts the concrete's water requirement, workability, and strength. Larger aggregates reduce the surface area needing cement paste coverage, which can lower water needs, thereby allowing a decrease in the water-to-cement ratio when the desired workability and richness of the mix are to be maintained, which can...
127
Information Processing Approach01:30

Information Processing Approach

38
The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
38
Heuristics01:21

Heuristics

93
Heuristics are problem-solving strategies that use mental shortcuts to simplify decision-making. Unlike algorithms, which must be followed precisely to achieve a correct result, heuristics offer a general problem-solving framework. They save time and energy but can sometimes lead to less rational decisions.
People often rely on heuristics when faced with an overload of information, limited time, low importance of the decision, limited information, or when a heuristic readily comes to mind. For...
93
Water and Mineral Acquisition02:34

Water and Mineral Acquisition

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Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
33.1K
Trial and Error and Algorithm01:12

Trial and Error and Algorithm

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A problem-solving strategy is a plan of action used to find a solution. Different strategies have distinct action plans. Trial and error involves trying different solutions until one works. For instance, to fix a broken printer, you might check ink levels, ensure the paper tray isn't jammed, and verify the printer's connection to your laptop. This method can be time-consuming but is commonly used. Thomas Edison, for example, used trial and error to find a suitable filament for the light...
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Foraging Path-length Protocol for Drosophila melanogaster Larvae

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通过预言来获取信息.

Jeremy Gordon1, Flavio Chierichetti2, Alessandro Panconesi2

  • 1University of California, Berkeley, Berkeley, CA, United States of America.

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概括
此摘要是机器生成的。

人们寻求专家建议,以获取财务利益和减少不确定性. 寻求指导的决定平衡了成本和收益,特别是对于那些不容忍不确定性的人来说.

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科学领域:

  • 认知科学 认知科学
  • 决策 决策 决策 决策 决策
  • 行为经济学是一种行为经济学.

背景情况:

  • 个人经常面临着涉及利用已知的选项与探索新选项的决策.
  • 在生态和日常选择中,平衡成本和效益至关重要.
  • 可以向专家或推系统寻求外部建议.

研究的目的:

  • 调查个人如何在决定寻求专家建议与自我探索时管理成本效益的权衡.
  • 确定经济和认识目标对寻求建议行为的影响.
  • 检查个人差异在这些决策中的作用,例如对不确定性的不容忍.

主要方法:

  • 设计了两项研究,参与者可以选择支付专家建议或独立寻找选择.
  • 实验操纵改变了最佳选择和专家指导的价值.
  • 对参与者的选择进行了分析,与回报最大化和不确定性减少有关.

主要成果:

  • 参与者更有可能寻求建议,当它直接改善了潜在的回报 (研究A).
  • 寻求建议的增加是因为它减少了选择的不确定性,独立于收益 (研究B).
  • 对不确定性不耐受的人更倾向于寻求减少不确定性的建议.

结论:

  • 人们寻求专家建议,以实现经济目标 (最大化回报) 和认识目标 (最小化不确定性).
  • 寻求建议的决策是动态敏感的感知成本和收益.
  • 个人差异,特别是对不确定性的不容忍,显著调节寻求外部指导的倾向.