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相关概念视频

Interference and Decay01:16

Interference and Decay

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Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
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Cognitive Development During Adulthood01:30

Cognitive Development During Adulthood

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Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
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Cognitivism01:17

Cognitivism

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Cognitive psychology emerged as a significant field in the mid-20th century. It focused on understanding humans' internal mental processes. This approach emphasizes how people perceive, remember, think, and solve problems—elements critical to human cognition.
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process...
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Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
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认知衰退的计算表型化与重新测试学习.

Zita Oravecz1,2, Joachim Vandekerckhove3,4, Jonathan G Hakun2,5

  • 1Department of Human Development and Family Studies, Pennsylvania State University; University Park, PA, USA.

The journals of gerontology. Series B, Psychological sciences and social sciences
|February 18, 2025
PubMed
概括

计算认知标记可以通过分析学习和忘记模式来识别轻度认知障碍 (MCI). 这些标志物为早期发现认知衰退和阿尔茨海默氏症和相关痴呆症 (ADRD) 风险提供了敏感的指标.

关键词:
认知心理测量是指认知心理测量.计算建模计算建模重新测试学习的方法.微妙的认知衰退 微妙的认知衰退

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科学领域:

  • 计算神经科学是一种计算神经科学.
  • 认知心理学 认知心理学
  • 老年学是一门学科.

背景情况:

  • 认知变化涉及性能增长和下降,需要方法来跟踪微妙的变化.
  • 识别阿尔茨海默病和相关痴呆症 (ADRD) 的风险因素需要解开这些复杂的动态.
  • 通过智能手机进行超短,高频认知评估,提供了新的数据收集方法.

研究的目的:

  • 应用计算认知模型来分析认知评估数据中的学习和忘记动态.
  • 识别敏感于临床前认知变化和轻度认知障碍 (MCI) 的认知标志物.
  • 评估计算标记在区分MCI与正常衰老中的实用性,独立于年龄影响.

主要方法:

  • 利用了爱因斯坦衰老研究 (EAS; n=316) 的数据,包括基于智能手机的认知评估.
  • 将学习和忘记的计算模型应用于视觉短期工作记忆 (颜色形状) 和处理速度 (符号搜索) 任务的响应时间数据.
  • 提取的标记物包括个体内变异性,突发学习,非对称性表现和忘记重新测试收益.

主要成果:

  • 无症状的表现与轻度认知障碍 (MCI) 和年龄相关,有证据表明随着时间的推移,无症状的表现会减缓.
  • 长期遗忘,学习速度和个人内部的变化是MCI的独特指标,不依赖年龄.
  • 计算认知标记在识别MCI时表现出敏感性和特异性.

结论:

  • 计算认知标记显示了潜在的临床前认知变化的敏感和特定指标.
  • 这些标志物可以帮助早期识别患ADRD风险的个体.
  • 这些发现支持使用计算标记器进行有针对性的干预和改进认知健康监测.