在外部和内部注意力之间切换时,感知脱是内部屏蔽益处的基础:来自早期感官事件相关潜在组件的证据
Sam Verschooren1,2,3, Luc Vermeylen4, Sam Boeve3
1Humboldt University, Berlin, Germany.
Journal of cognitive neuroscience
|March 26, 2025
概括
由于屏蔽,在内部和外部信息之间转移注意力对内部注意力的成本更高. 这项研究表明,感知脱是这种内部屏蔽益处的基础,增强了注意力灵活性.
科学领域:
- 认知神经科学 认知神经科学
- 心理学 心理学 心理学
- 神经科学是一个神经科学.
背景情况:
- 注意灵活性包括在外部和内部信息来源之间切换.
- 研究表明,成本不对称:转向内部注意力比转向外部注意力更难.
- 这种不对称性与内部屏蔽有关,保护内部焦点免受外部干扰.
研究的目的:
- 研究注意力切换成本的神经机制.
- 探索感知脱在内部屏蔽中的作用.
- 为感知脱提供证据,作为内部屏蔽效益的机制.
主要方法:
- 参与者执行了需要重复或切换外部和内部注意力的任务.
- 使用脑电图 (EEG) 来记录大脑活动 (64通道).
- 分析了行为转换成本和事件相关潜力 (ERP).
主要成果:
- 行为数据证实了切换成本不对称性 (内部关注的成本更高).
- 脑电图显示了对内部注意力的更强的准备 (附带的负变化).
- 感知脱被内部注意力期间的化感官反应 (P1,N1) 和内部重复期间的增强P2组件所表明,这表明稳定的屏蔽.
结论:
- 感知解是支持内部屏蔽效益的关键机制.
- 这种机制解释了注意力切换成本中观察到的不对称性.
- 结果整合了关于注意力灵活性和内部信息处理的行为和神经证据.
更多相关视频
06:46Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
Published on: March 18, 2019
7.0K
10:38A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
Published on: July 16, 2015
13.6K
相关概念视频
Perception
422
Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
422
Subconsciousness and No Awareness
214
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...
An illustrative example of subconscious processing is its role in problem-solving. Often, individuals...
214
Subliminal Perception
223
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...
223
¹³C NMR: ¹H–¹³C Decoupling
981
The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
981
High-Level and Low-Level Awareness
244
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...
244
Parallel Processing
141
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
141
