ND COBRE: VISUAL ORIENTING EFFECTS OF DIRECTIONAL CLUES

ND COBRE：方向线索的视觉定向效果

• 批准号: 6972191
• 负责人: CHRIS KELLAND FRIESEN
• 金额: $ 13.89万
• 依托单位: NORTH DAKOTA STATE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-20 至 2005-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6972191
• 关键词: attention; awareness; behavior test; brain electrical activity; clinical research; cues; electrophysiology; eye movements; human subject; neural information processing; orientation; vision

In everyday life, directional cues provide a rich source of visual information that can influence human behavior in many ways. Directional cues from people and other animals, such as their eye gaze direction or head orientation, provide an indication of where their attention is directed, and thus can alert us to potentially important objects and events in our environment. Other, nonbiological, directional cues such as arrows can perform a similar function. Recently it was discovered that gaze and arrow cues trigger a shift of attention that is fast and automatic. The research to date has focused on measuring this attentional shift using a single cue and a single target; however, in the real world we are continually exposed to a variety of directional cues, and these cues almost always appear within a rich and complex visual context, and often in situations in which our goals and affective states are influential. The overall objective of this project is to understand how we process, respond to, and make use of directional cues in our daily lives. Specifically, the goals of this project are: to investigate the effects of directional cues in rich visual environments; to identify, using electrophysiological recording techniques, the neural activity associated with shifting attention in response to directional cues; to explore the roles of context, attentional control, and conscious awareness in orienting to directional cues; and to identify the essential properties of visual directional information and investigate how this information can be most effectively conveyed. This research will lead to a refinement of our theories of human spatial attention in general, and of the neural processes that underlie shifts of spatial attention in response to biologically and socially relevant directional information in the visual environment.

在日常生活中，方向线索提供了丰富的视觉信息来源，可以在许多方面影响人类的行为。来自人类和其他动物的方向性线索，比如他们的眼睛凝视方向或头部方向，提供了他们的注意力指向哪里的指示，因此可以提醒我们注意环境中潜在的重要物体和事件。其他非生物的定向信号，如箭头，也能起到类似的作用。最近发现，凝视和箭头提示会触发注意力的快速自动转移。迄今为止的研究主要集中在使用单一线索和单一目标来测量这种注意力转移；然而，在现实世界中，我们不断地接触到各种各样的方向线索，