空间注意转移的初步眼动研究

目的：本研究采用线运动错觉测量作为空间注意转移程度的指标,对内源性眼跳与空间注意转移的关系进行探讨。方法：被试以提示刺激的形状和颜色为线索进行相应的眼跳,通过对线运动错觉的分析探索时间间隔、眼跳位置与提示刺激空间方位一致性对空间注意转移的影响以及二者是否存在交互作用。结果：时间间隔效应显著;提示刺激位置与眼跳目标位置的空间一致性对眼跳前空间注意转移有显著影响。结论：内源性眼跳与注意的关系密切;我们可以假设注意与眼跳程序通常是相关的,但需要一个启动信号激活眼跳程序。     

Scene perception and the visual control of travel direction in navigating wood ants

This review reflects a few of Mike Land''s many and varied contributions to visual science. In it, we show for wood ants, as Mike has done for a variety of animals, including readers of this piece, what can be learnt from a detailed analysis of an animal''s visually guided eye, head or body movements. In the case of wood ants, close examination of their body movements, as they follow visually guided routes, is starting to reveal how they perceive and respond to their visual world and negotiate a path within it. We describe first some of the mechanisms that underlie the visual control of their paths, emphasizing that vision is not the ant''s only sense. In the second part, we discuss how remembered local shape-dependent and global shape-independent features of a visual scene may interact in guiding the ant''s path.     

Hindbrain modules differentially transform activity of single collicular neurons to coordinate movements

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