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相关概念视频

Implicit Memories01:24

Implicit Memories

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Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
One key aspect of implicit...
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Repressed Memory01:16

Repressed Memory

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Repressed memories are a psychological phenomenon where memories of traumatic events are unconsciously blocked from a person's awareness. This process occurs as a defense mechanism, protecting the mind from the emotional impact of distressing or painful experiences. For example, a person who has experienced childhood trauma may grow up with no conscious recollection of the event. In such cases, the memories are thought to be buried deep within the subconscious, inaccessible to the conscious...
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Subconsciousness and No Awareness01:15

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The concept of subconscious awareness refers to the processing of information below the level of conscious thought, which significantly influences both behaviors and decisions. It is also known as waking subconscious awareness. This complex level of cognition operates without the direct awareness of the individual, facilitating rapid and simultaneous handling of multiple information streams.
An illustrative example of subconscious processing is its role in problem-solving. Often, individuals...
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Subliminal Perception01:15

Subliminal Perception

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Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal perception by presenting a stimulus, such as a word or image, very quickly, typically around 50 milliseconds. This rapid presentation is often followed by another stimulus, such as a pattern of dots or lines, which blocks further mental processing of the initial stimulus. As a result, if participants cannot identify the initial stimulus better...
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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!
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Nonconscious Mimicry01:13

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Nonconscious mimicry occurs when individuals alter their mannerisms to match the behaviors and expressions of those nearby, without intention.
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相关实验视频

Updated: Jun 28, 2025

Design and Implementation of an fMRI Study Examining Thought Suppression in Young Women with, and At-risk, for Depression
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主动抑制是一个隐含的过程,不能在需求时召唤.

Christopher Hauck1, Eric Ruthruff2, Mei-Ching Lien1

  • 1School of Psychological Science, Oregon State University.

Journal of experimental psychology. Human perception and performance
|April 15, 2024
PubMed
概括
此摘要是机器生成的。

按需的干扰器抑制不是主动的. 当分散注意力的颜色变化时,参与者无法主动抑制它,导致反应性处理和性能降低.

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科学领域:

  • 认知心理学 认知心理学
  • 视觉注意力 视觉注意力
  • 感知控制 感知控制

背景情况:

  • 积极的认知控制允许个人预测和准备即将到来的任务.
  • 选择性注意力机制对于在复杂的视觉环境中过不相关信息至关重要.

研究的目的:

  • 调查按需主动抑制视觉干扰物的可行性.
  • 为了确定分心抑制是否可以主动启动基于暗示信息.
  • 检查干扰器变异性对主动抑制效率的影响.

主要方法:

  • 参与者执行了一个视觉搜索任务,用线索分心色彩.
  • 一个探测函数召回任务评估了分心抑制的有效性.
  • 干扰器颜色的可预测性在实验中被操纵.

主要成果:

  • 当分心色被固定时,观察到探头抑制效应.
  • 当分散注意力的颜色在试验中变化时,这种效果就消失了.
  • 发现了反对"搜索和摧毁"假设的证据,表明最初没有对分心色彩的搜索.

结论:

  • 当干扰器的身份变化时,主动抑制干扰器在需求时是不可能的.
  • 当抑制不能主动时,采用反应式分心处理,从而导致性能成本.
  • 干扰器拒绝的认知控制机制是取决于上下文的,并受到可预测性的影响.