Chun Marvin M, Marois René
Department of Psychology, Center for Integrative and Cognitive Neuroscience and Vanderbilt Vision Research Center, 531 Wilson Hall, Vanderbilt University, Nashville, Tennessee 37240, USA.
Curr Opin Neurobiol. 2002 Apr;12(2):184-9. doi: 10.1016/s0959-4388(02)00309-4.
The limited capacity of neural processing restricts the number of objects and locations that can be attended to. Selected events are readily enhanced: the bright side of attention. However, such focal processing comes at a cost, namely, functional blindness for unattended events: the dark side of visual attention. Recent work has advanced our understanding of the neural mechanisms that facilitate visual processing, as well as the neural correlates of unattended, unconscious visual events. Also, new results have revealed how attentional deployment is optimized by non-visual factors such as behavioral set, past experience, and emotional salience.
神经处理能力的有限性限制了能够被关注的物体数量和位置。被选中的事件会很容易得到增强：这是注意力的积极一面。然而，这种聚焦处理是有代价的，即对未被关注事件的功能性视而不见：这是视觉注意力的消极一面。最近的研究推进了我们对促进视觉处理的神经机制以及未被关注的、无意识视觉事件的神经关联的理解。此外，新的研究结果揭示了行为倾向、过去经验和情感显著性等非视觉因素是如何优化注意力分配的。
