处理模两可的单词没有上下文:语义激活,抑制,选择和控制检索在年轻和老年人的成年人
Sandra Invernizzi1, Sarah Gilis1, Alice Bodart1
1University of Mons, Department of Cognitive Psychology and Neuropsychology, Belgium.
Acta psychologica
|January 22, 2026
概括
健康的衰老保持了语义记忆的激活,抑制和检索. 然而,选择过程显示出脆弱性,特别是语义干扰因素,挑战全球认知衰退模型.
科学领域:
- 认知神经科学 认知神经科学
- 老龄化心理学的心理学
- 人类认知能力 人类认知能力
背景情况:
- 语义记忆包括激活,抑制,选择和受控的检索.
- 认知衰老研究经常探讨全球衰退,但选择性影响越来越被认可.
研究的目的:
- 研究健康衰老对四个核心语义记忆过程的影响.
- 为了比较老年人和年轻人的语义记忆功能.
- 通过检查对认知控制的选择性影响,挑战全球衰退模型.
主要方法:
- 适应的词汇决策任务 (LDT) 来评估自动激活和抑制.
- 使用Cue-to-Target关联任务 (CTTAT) 来评估执行功能,如选择和检索.
- 测试了100名老年人 (平均年龄~67岁) 和75名年轻人 (平均年龄~27岁).
主要成果:
- 两个年龄组都显示了对主导意义和单体性关联者的保留语义原始化效应.
- 在处理附属含义或无关目标时,各个年龄组的抑制机制都被类似地使用.
- 年长的成年人表现出完整的受控检索,但在语义选择方面表现出缺陷,特别是在分散注意力的情况下.
结论:
- 健康衰老选择性地影响语义选择过程,而不是早期激活,抑制或受控检索.
- 研究结果表明,衰老会选择性地影响干扰控制,这与广泛的认知衰退理论相矛盾.
- 这项研究为了解整个生命周期的语义控制提供了一个框架.
相关概念视频
Inhibition of Cdk Activity
5.8K
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
5.8K
Feedback Inhibition
56.9K
Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
56.9K
Introduction to Statistical Process Control
628
Statistical Process Control (SPC) is a method used to monitor and control quality within processes, particularly in manufacturing and service delivery, by employing statistical methods. SPC aims to distinguish between natural (common cause) variation and variation due to specific changes or events (special cause), allowing for timely improvements and sustained quality. The control chart, a pivotal tool in SPC, visually displays data over time alongside a central line of upper and lower control...
628
Retrieval
424
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...
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...
424
T Cell Activation and Clonal Selection
14.8K
T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
Naive T cells that have not yet encountered an antigen express two primary CD...
14.8K
Self Within Cultural Contexts
222
Cultural frameworks for understanding the self are often categorized into two broad orientations: individualism and collectivism. These paradigms influence how people define themselves, relate to others, and interpret their social worlds. Each orientation offers distinct perspectives on autonomy, responsibility, and the role of the individual within a community.Individualistic CulturesIn individualistic cultures like North America and Western Europe, identity is understood as autonomous and...
222


