Modality-specific and modality-general mechanisms of perceptual decision making

感知决策的特定模态和一般模态机制

• 批准号: 409180874
• 负责人: Professor Dr. Felix Blankenburg
• 金额: --
• 依托单位: Institut für Psychologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/409180874?language=en
• 关键词: Modality; specific; modality; general; mechanisms

Perceptual decisions can be based on information from different sensory modalities. So far, however, they have mostly been studied one modality at a time and using very different stimulus material and tasks. This project thus studies which neural mechanisms of perceptual decision making are specific to individual modalities and which mechanisms are shared across them. In a novel, virtual reality-based setting, this project will directly compare the neural mechanisms of both visual and tactile perceptual decisions. To assess the neural mechanisms, the project will use both model-based fMRI and EEG approaches based on hierarchical drift diffusion models and multivariate choice probability methods.

感知决策可以基于来自不同感官方式的信息。然而，到目前为止，它们大多一次只研究一种模式，并使用非常不同的刺激材料和任务。因此，该项目研究哪些感知决策的神经机制特定于个体模式以及哪些机制在它们之间共享。在基于虚拟现实的新颖环境中，该项目将直接比较视觉和触觉感知决策的神经机制。为了评估神经机制，该项目将使用基于模型的功能磁共振成像和脑电图方法，这些方法基于分层漂移扩散模型和多元选择概率方法。