Carrasco Marisa
Department of Psychology & Center for Neural Science, New York University, 6 Washington Pl. 8th floor, New York, NY 10003, USA.
Prog Brain Res. 2006;154:33-70. doi: 10.1016/S0079-6123(06)54003-8.
This chapter focuses on the effect of covert spatial attention on contrast sensitivity, a basic visual dimension where the best mechanistic understanding of attention has been achieved. I discuss how models of contrast sensitivity, as well as the confluence of psychophysical, single-unit recording, and neuroimaging studies, suggest that attention increases contrast sensitivity via contrast gain, an effect akin to a change in the physical contrast stimulus. I suggest possible research directions and ways to strengthen the interaction among different levels of analysis to further our understanding of visual attention.
本章聚焦于隐蔽空间注意对对比度敏感性的影响，对比度敏感性是一个基本的视觉维度，在这方面我们对注意机制有了最好的理解。我将讨论对比度敏感性模型，以及心理物理学、单细胞记录和神经成像研究的融合如何表明，注意通过对比度增益提高对比度敏感性，这种效应类似于物理对比度刺激的变化。我提出了可能的研究方向以及加强不同分析层次之间相互作用的方法，以进一步加深我们对视觉注意的理解。
