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.

注意的节律理论是近年来注意研究领域最具开拓性的理论之一。最近的研究能够证明，在一个线索位置的持续关注期间，环境是以θ-节奏周期采样的。这些周期包括在提示位置处的增强和降低的感知灵敏度的交替周期。然而，到目前为止，这些节奏模式几乎只在空间注意力领域进行了研究。鉴于空间为基础的，基于特征的，以及基于对象的注意机制，分别在神经基础的相似性，类似的节奏模式也可能存在的特征和基于对象的注意。因此，拟议的研究项目的目的是调查的节奏性特征和对象为基础的机制，选择性视觉注意。在这样做，一个多维的方法论的基础上，收购的行为，脑电图，功能磁共振成像和ECoG数据，将允许在行为和神经水平的节奏注意过程的深入分析。