Assessing, understanding, and modeling visual salience and its dynamical impact on perception and selection

该项目研究了视觉显著性如何动态影响注意力和动眼肌选择，以及这些影响如何与初级视觉皮层（V1）和高阶视觉皮层区域的功能特性相关。作为迄今为止在心理学研究和建模中被忽视的一个焦点，我们将集中研究时间动力学。我们将通过实验探索单次注视中的显著性效应，以及那些发生在较长时间和多次眼球运动中的显著性效应，以找出来自不同视觉特征维度的显著性何时影响视觉选择，何时不影响。我们将开发一个神经生理学上合理的计算模型，结合显著效应的动力学。该模型将基于V1 （Li 2002）现有的显著性模型，并进行扩展，以解释作为特征维度和重要的时间函数的差异显著性效应。

The project investigates how visual salience dynamically affects attentional and oculomotor selection and how these effects are related to the functional properties of the primary visual cortex (V1) and higher-order visual cortical areas. As a focus so far disregarded in psychological research and modeling, we will concentrate on temporal dynamics. We will probe experimentally salience effects within single fixations as well as those occurring over longer periods of time and multiple eye movements, to find out when salience derived from different visual feature dimensions affects visual selection and when not. We will develop a neurophysiologically plausible computational model incorporating the dynamics of salience effects. The model will be based on an existing salience model of V1 (Li 2002) and extended to account for differential salience effects as a function of feature dimension and, importantly, time.