Larose Claire, Richard-Yris Marie-Annick, Hausberger Martine, Rogers Lesley J
Université de Rennes 1, France.
Laterality. 2006 Jul;11(4):355-67. doi: 10.1080/13576500600624221.
We have established that lateral biases are characteristic of visual behaviour in 65 horses. Two breeds, Trotters and French Saddlebreds aged 2 to 3, were tested on a novel object test. The main finding was a significant correlation between emotionality index and the eye preferred to view the novel stimulus: the higher the emotionality, the more likely that the horse looked with its left eye. The less emotive French Saddlebreds, however, tended to glance at the object using the right eye, a tendency that was not found in the Trotters, although the emotive index was the same for both breeds. The youngest French Saddlebreds did not show this trend. These results are discussed in relation to the different training practices for the breeds and broader findings on lateralisation in different species.
我们已经确定，65匹马的视觉行为具有左右侧偏好特征。对2至3岁的快步马和法国鞍马这两个品种进行了新物体测试。主要发现是情绪指数与观看新刺激物时偏好使用的眼睛之间存在显著相关性：情绪越高，马用左眼观看的可能性就越大。然而，情绪较低的法国鞍马倾向于用右眼瞥向物体，快步马中未发现这种倾向，尽管两个品种的情绪指数相同。最年幼的法国鞍马没有表现出这种趋势。结合这两个品种不同的训练方式以及关于不同物种大脑半球侧化的更广泛研究结果对这些结果进行了讨论。
