没有选择性注意力转移,尽管在一个工作记忆任务与无意识的刺激前额头激活期间,有选择性注意力转移
Tiziana Pedale1, Olympia Karampela2,3, Johan Eriksson2,3
1Umeå Center for Functional Brain Imaging and Department of Medical and Translational Biology, Umeå University, Umeå 901 87, Sweden tiziana.pedale@gmail.com.
eNeuro
|September 17, 2025
概括
意识工作记忆可以比无意识工作记忆更好地控制注意力. 即使有大脑活动,无意识的信息也不能有效地引导注意力,而不是有意识的信息.
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
背景情况:
- 成功的工作记忆依赖于优先考虑相关信息和控制注意力.
- 注意力控制对于过干扰和专注于与任务相关的刺激至关重要.
研究的目的:
- 为了研究无意识工作记忆期间的注意力控制.
- 为了确定 prestimulus 线索是否可以引导注意力对无意识处理的信息.
- 检查在有意识与无意识工作记忆条件下注意力控制的神经相关物.
主要方法:
- 使用延迟匹配样本任务与无意识呈现的刺激.
- 前刺激线索表示目标侧,但线索有效性被操纵 (有效,无效).
- 功能磁共振成像 (fMRI) 测量了大脑活动 (BOLD信号变化).
主要成果:
- 参与者在无意识试验中使用有效线索表现更好,这表明在使用无效线索时,重新定位能力有限.
- 中部和侧部前额叶皮层对无意识的刺激表现出显著的活动,但不是由提示有效性调节的.
- 周围区域对无意识刺激没有显著的激活,无论暗示的有效性如何.
结论:
- 虽然认知控制区域对无意识的刺激进行激活,但适应性选择性注意力并不明显.
- 注意部署在意识和无意识工作记忆之间存在显著差异.
- 大脑控制注意力的能力似乎受到意识意识的约束.
相关概念视频
Subconsciousness and No Awareness
666
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...
666
High-Level and Low-Level Awareness
629
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...
629
Working Memory
810
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
810


