Neuronal and behavioral rhythmicity of feature-based and object-based mechanisms of selective visual attention

基于特征和基于对象的选择性视觉注意机制的神经和行为节律性

• 批准号: 437568432
• 负责人: Dr. Berit Hartjen
• 金额: --
• 依托单位: Princeton Neuroscience Institute
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/437568432?language=en
• 关键词: Neuronal; behavioral; rhythmicity; feature; based

The rhythmic theory of attention has lately become one of the most pioneering theories in the field of attention research. Recent studies were able to demonstrate that the environment is sampled in theta-rhythmic cycles during sustained attention at a cued location. These cycles include alternating periods of enhanced and reduced perceptual sensitivity at the cued location. However, so far, these rhythmic patterns have been almost exclusively investigated in the area of spatial attention. Given the similarities in the neural bases of spatial-based, feature-based as well as object-based attentional mechanisms, respectively, similar rhythmic patterns may also exist for feature- and object-based attention. Hence, the proposed research project is intended to investigate the rhythmicity of feature- and object-based mechanisms of selective visual attention. In doing so, a multidimensional methodological approach, based on the acquisition of behavioral, EEG, fMRI and ECoG data, will permit an in-depth analysis of rhythmic attentional processes both at the behavioral and neural level.

注意的节奏性理论最近成为注意研究领域中最具开创性的理论之一。最近的研究能够证明，在线索位置持续注意的过程中，环境是以theta-节律周期进行采样的。这些循环包括提示位置知觉敏感度增强和降低的交替周期。然而，到目前为止，这些节奏模式几乎都是在空间注意领域进行的研究。鉴于基于空间的注意机制、基于特征的注意机制和基于对象的注意机制在神经基础上的相似性，基于特征和基于对象的注意机制也可能存在相似的节奏模式。因此，本研究旨在探讨基于特征和基于物体的选择性视觉注意机制的节奏性。在此过程中，基于行为、EEG、fMRI和ECoG数据的多维方法方法将允许在行为和神经水平上对节律性注意过程进行深入分析。