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相关概念视频

Encoding01:19

Encoding

110
Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
110
Information Processing Approach01:30

Information Processing Approach

26
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...
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Stereotype Content Model02:16

Stereotype Content Model

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The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
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Forgetting01:21

Forgetting

42
Forgetting is an intrinsic aspect of human memory, characterized by the gradual loss or inaccessibility of information over time. Hermann Ebbinghaus, a pioneering psychologist, extensively studied this phenomenon and formulated the forgetting curve. This curve illustrates that memory loss occurs rapidly immediately after learning and then decelerates over time. Several mechanisms contribute to forgetting, including encoding failure, storage decay, retrieval failure, and interference.
Encoding...
42
Improving Translational Accuracy02:07

Improving Translational Accuracy

8.5K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
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Force Classification01:22

Force Classification

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Forces play a crucial role in the study of physics and engineering. They are essential in describing the motion, behavior, and equilibrium of objects in the physical world. Forces can be classified based on their origin, type, and direction of action.
Contact and non-contact forces are two of the most widely used categories of forces. As the name suggests, contact forces require physical contact between two objects to act upon each other. Examples of contact forces include frictional,...
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相关实验视频

Updated: May 22, 2025

Irrelevant Stimuli and Action Control: Analyzing the Influence of Ignored Stimuli via the Distractor-Response Binding Paradigm
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Irrelevant Stimuli and Action Control: Analyzing the Influence of Ignored Stimuli via the Distractor-Response Binding Paradigm

Published on: May 14, 2014

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在基于特征的编码中,可以忽略与任务无关的特征.

Yao Fu1, Heming Gao1, Jingyan Jing1

  • 1School of Psychology, Liaoning Normal University, Dalian 116029, China.

Biological psychology
|May 16, 2025
PubMed
概括
此摘要是机器生成的。

在记忆任务中,即使在高认知负载下,个人也可以有效地忽略不相关的项目特征. 这种选择性注意力可以防止干扰因素影响搜索性能或处理效率.

关键词:
捕捉注意力的注意力捕捉.功能处理 功能处理.N2pccc 在线播放任务无关的特征与任务无关工作内存负载工作内存负载.

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A Two-interval Forced-choice Task for Multisensory Comparisons
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Transferring Cognitive Tasks Between Brain Imaging Modalities: Implications for Task Design and Results Interpretation in fMRI Studies
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Transferring Cognitive Tasks Between Brain Imaging Modalities: Implications for Task Design and Results Interpretation in fMRI Studies

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相关实验视频

Last Updated: May 22, 2025

Irrelevant Stimuli and Action Control: Analyzing the Influence of Ignored Stimuli via the Distractor-Response Binding Paradigm
12:12

Irrelevant Stimuli and Action Control: Analyzing the Influence of Ignored Stimuli via the Distractor-Response Binding Paradigm

Published on: May 14, 2014

9.8K
A Two-interval Forced-choice Task for Multisensory Comparisons
07:13

A Two-interval Forced-choice Task for Multisensory Comparisons

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10.8K
Transferring Cognitive Tasks Between Brain Imaging Modalities: Implications for Task Design and Results Interpretation in fMRI Studies
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Transferring Cognitive Tasks Between Brain Imaging Modalities: Implications for Task Design and Results Interpretation in fMRI Studies

Published on: September 22, 2014

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科学领域:

  • 认知心理学 认知心理学
  • 神经科学是一个神经科学.

背景情况:

  • 选择性记忆对于认知效率至关重要.
  • 了解大脑如何过不相关信息是认知功能的关键.

研究的目的:

  • 调查选择性地记住与任务相关的特征,同时忽略与任务无关的特征的能力.
  • 检查认知负载对选择性记忆和注意力的影响.

主要方法:

  • 参与者执行了具有不同认知负载 (1,2,或4项) 的视觉搜索任务.
  • 操作了与任务相关的和与任务无关的特征 (颜色和形状).
  • 测量了与事件相关的潜力 (ERP),特别是N2pc组件.

主要成果:

  • 在不同的负载条件下,与任务无关的干扰因素不会影响响应时间.
  • 在N2pc组件中,无论负载如何,中性试验和与任务无关的试验之间没有差异.
  • 与任务无关的特征被抑制或忽视,表明有效的注意力过.

结论:

  • 个人可以成功地忽略与任务无关的特征,表现出强大的选择性注意力.
  • 认知负载不会影响忽略不相关信息的能力.
  • 神经机制有效地抑制不相关的干扰因素,确保有效的目标处理.