Maintaining a common map of locations: remapping multi-sensory targets during eye movements

人类表现的一个标志是我们能够将行动集中在各种各样的目标上：对感兴趣的物品的短暂视觉瞥见，声音，对身体的触摸，我们想要拿起的物体。这项拨款的目的是研究大脑是否使用一个独立于它们起源的目标位置的共同地图，以便与它们有效地相互作用。为了做到这一点，我们将寻找在眼球运动时以其他方式判断目标位置时视觉恒常性错误的特征。我们将用行为心理物理学和脑成像技术来解决这个问题，以测量目标在不同模式下对注意力和位置判断的影响。我们正在引入几种创新的方法，这些方法依赖于我们三个实验室的技能组合，这将使我们能够直接解决这个问题。

A hallmark of human performance is our ability to focus actions on an enormous variety of targets ¿ a brief visual glimpse of an item of interest, a sound, a touch to our body, an object we wish to pick up. The purpose of this grant is to study whether the brain uses a common map of target positions, independent of their origin, in order to interact effectively with them. To do so, we will look for the signature of errors of visual constancy when judgments of target locations in other modalities made at the time of an eye movement. We will approach this question with behavioral psychophysics and brain imaging techniques to measure effects of targeting on attention and position judgments across modalities. We are introducing several innovative methods that rely on the combinations of skills across our three laboratories and that will allow us to address the question directly.