Legg C R, Lambert S
Department of Social Science, City University, Northampton Square, London, U.K.
Behav Brain Res. 1990 Dec 7;41(1):11-20. doi: 10.1016/0166-4328(90)90049-k.
The role of motion cues, generated by vertical head movements, in distance estimation by hooded rats was investigated in a jumping task in which animals were trained to jump randomly varying gaps between two elevated platforms. In the first experiment it was shown that the disposition of texture cues influenced the number of head movements made prior to jumping, showing that the movements are related to visual aspects of the task. In the second experiment it was shown that stroboscopic illumination disrupted accurate jumping but animals could jump accurately to a platform when only the leading edge was visible, showing that they depend on motion cues but not motion parallax.
在一项跳跃任务中，研究了由垂直头部运动产生的运动线索在戴帽大鼠距离估计中的作用。在该任务中，训练动物随机跳跃两个高架平台之间不同宽度的间隙。在第一个实验中，结果表明纹理线索的布局会影响跳跃前头部运动的次数，这表明这些运动与任务的视觉方面有关。在第二个实验中，结果表明频闪照明会干扰准确跳跃，但当只有前沿可见时，动物能够准确跳到平台上，这表明它们依赖运动线索而非运动视差。
