Predictive enhancement and inhibition in the context of actions

行动背景下的预测增强和抑制

• 批准号: 277063461
• 负责人: Professor Dr.-Ing. Heiner Deubel
• 金额: --
• 依托单位: Lehrstuhl für Allgemeine und Experimentelle Psychologie
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/277063461?language=en
• 关键词: Predictive; enhancement; inhibition; context; actions

Selection, inhibition, and prediction are closely intertwined mechanisms that constitute core principles for the understanding of cognition. The main objective of this project is to study in a common experimental paradigm the functional importance of these mechanisms for perception and visuomotor control, define how they are related, analyze how they adapt to different tasks, and elucidate their neural mechanisms. The first part of the project will investigate exactly how the different attentional signals, related to the preparation of goal-directed eye and hand movements on the one hand, and to top-down and bottom-up attention on the other, are combined in an attentional map, how this map is dynamically updated across eye movements. In a second part we will study the interaction between selection and inhibition in visuomotor tasks that require both the selection of a movement target and the inhibition of non-target stimuli, and we will analyze the effects of predictability of target and distractors on selection and inhibition mechanisms. Finally, the third part of the project will extend the experimental approach to visual search tasks in which efficient search requires the suppression of salient but task-irrelevant sensory information. Here we want to explore whether and how prediction interacts also with automatic stimulus-driven attentional orienting (both covert and overt) in visual search. This research will fill a gap in our understanding of prediction and attention within the forward model and predictive coding theories.

选择、抑制和预测是紧密交织在一起的机制，构成了理解认知的核心原则。本项目的主要目的是在一个共同的实验范式中研究这些机制对感知和视觉运动控制的功能重要性，定义它们之间的关系，分析它们如何适应不同的任务，并阐明它们的神经机制。该项目的第一部分将研究不同的注意力信号是如何结合在一个注意力地图上的，这些信号一方面与目标导向的眼睛和手的运动有关，另一方面与自上而下和自下而上的注意有关，这个地图是如何随着眼球运动而动态更新的。在第二部分中，我们将研究同时需要选择运动目标和抑制非目标刺激的视觉运动任务中选择和抑制之间的相互作用，并分析目标和干扰物的可预测性对选择和抑制机制的影响。最后，该项目的第三部分将实验方法扩展到视觉搜索任务，其中有效的搜索需要抑制突出但与任务无关的感官信息。在这里，我们想探索预测是否以及如何在视觉搜索中与自动刺激驱动的注意定向（包括隐蔽的和公开的）相互作用。本研究将填补我们在正演模型和预测编码理论中对预测和注意的理解的空白。