Attentional sensitization of conscious and unconscious priming - Specifying top-down mechanisms

有意识和无意识启动的注意敏化 - 指定自上而下的机制

• 批准号: 60167533
• 负责人: Professor Dr. Markus Kiefer
• 金额: --
• 依托单位: Klinik für Psychiatrie und Psychotherapie III (Ulm)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/60167533?language=en
• 关键词: Attentional; sensitization; conscious; unconscious; priming

Unconscious automatic processes are traditionally thought to occur autonomously and independently of top-down control. In challenging this traditional view, we propose an attentional sensitization model, which assumes that attentional influences originating from task sets enhance task-relevant automatic processes while attenuating task-irrelevant automatic processes. Previous work of this project showed that a prototypical example of an automatic process, subliminal priming elicited by unconsciously perceived masked stimuli, depends on currently activated task sets. In a continuation of this project, we want to further specify the proposed attentional sensitization mechanism and extend the empirical testing of our model to the domains of unconscious spatial and emotional processing using behavioral and neurophysiological measures (ERPs, fMRI). In particular, we investigate whether task sets modulate unconscious visual perception at a very fine-grained level: Depending on the processes in question (spatial vs. emotional) and the type of stimuli (words vs. pictures), task sets should have very specific influences on unconscious visual processing. In addition to the induction task procedure that we developed previously, we use hypnosis, subliminal task cues and dual stream rapid serial visual presentation to shed light on the generality of attentional influences on unconscious visual perception.

无意识的自动过程传统上被认为是自主发生的，独立于自上而下的控制。为了挑战这一传统观点，我们提出了一个注意敏感化模型，该模型假设来自任务集的注意影响增强了与任务相关的自动过程，而减弱了与任务无关的自动过程。该项目以前的工作表明，一个自动过程的典型例子--由无意识感知的掩蔽刺激引发的阈值下启动--取决于当前激活的任务集。在这个项目的继续中，我们希望进一步明确所提出的注意敏感化机制，并将我们的模型的经验测试扩展到使用行为和神经生理学测量(ERPs，fMRI)的无意识空间和情绪处理领域。特别是，我们调查了任务集是否在非常细粒度的水平上调节无意识视觉知觉：根据所讨论的过程(空间与情感)和刺激类型(文字与图片)，任务集应该对无意识视觉处理产生非常具体的影响。除了我们之前开发的诱导任务程序外，我们还使用催眠、潜意识任务线索和双流快速连续视觉呈现来阐明注意对无意识视觉知觉影响的共性。

项目成果

Boundary conditions for the influence of unfamiliar non-target primes in unconscious evaluative priming: The moderating role of attentional task sets

无意识评价启动中陌生非目标启动影响的边界条件：注意任务集的调节作用

• DOI: 10.1016/j.concog.2015.01.010
• 发表时间: 2015
• 期刊: Consciousness and Cognition
• 影响因子: 2.4
• 作者: Kiefer;Wentura
• 通讯作者: Wentura

Flexible establishment of functional brain networks supports attentional modulation of unconscious cognition

灵活建立功能性大脑网络支持无意识认知的注意力调节

• DOI: 10.1002/hbm.22566
• 发表时间: 2014
• 期刊: Human Brain Mapping
• 影响因子: 4.8
• 作者: Ulrich;Kiefer
• 通讯作者: Kiefer

The semantic origin of unconscious priming: Behavioral and event-related potential evidence during category congruency priming from strongly and weakly related masked words

• DOI: 10.1016/j.cognition.2015.09.012
• 发表时间: 2016-01
• 期刊: Cognition
• 影响因子: 3.4
• 作者: J. J. Ortells-J.;M. Kiefer;A. Castillo;Montserrat Megías;Alejandro Morillas