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相关概念视频

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Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
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相关实验视频

Updated: Jun 25, 2025

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
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在整个竞争环境中积极选择性关注.

Blanca Aguado-López1, Ana F Palenciano1, José M G Peñalver1

  • 1Mind, Brain and Behavior Research Center (CIMCYC), University of Granada, Granada 18071, Spain.

Cortex; a journal devoted to the study of the nervous system and behavior
|May 21, 2024
PubMed
概括
此摘要是机器生成的。

预测竞争水平主动塑造了注意力模板,对于高与低竞争环境有着不同的神经模式. 这种主动调制通过改变预备性大脑活动来影响认知表现.

关键词:
有偏见的竞争模式.这是一个EEGEEGEEGEEGEEGEEGEEG.MVPA MVPA是什么意思准备 准备 准备选择性的注意力选择性注意力

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科学领域:

  • 认知神经科学 认知神经科学
  • 神经科学是一个神经科学.

背景情况:

  • 选择性注意力过信息,有偏见的竞争模型解释了刺激竞争下的目标处理.
  • 预期竞争对注意力模板的积极影响仍然不清楚.

研究的目的:

  • 研究预期的竞争需求如何使用电脑电图 (EEG) 调节预备性大脑活动.
  • 检查准备活动,竞争背景和任务执行之间的关系.

主要方法:

  • 使用一个提示目标范式,具有高 (同时) 和低 (顺序) 刺激竞争块.
  • 应用多变量模式分析 (MVPA) 和时间频率分析对EEG数据.

主要成果:

  • 目标类别的预激活在两个竞争环境中都发生了,具有加快的概况.
  • 交叉分类显示,在竞争条件中没有普遍性,表明不同的准备格式.
  • 在竞争激烈的环境中观察到更高的达频段功率,介导性能.

结论:

  • 内部注意力模板是预先激活的,无论预期的竞争,但他们的神经模式不同.
  • 不同的准备过程,与theta权力没有直接联系,是不同的竞争背景的基础.
  • 这些发现增强了对跨越不同认知需求的上下注意力控制的理解.